THE PAIRED CASE-CONTROL STUDY BETWEEN AR IN ADULTS AND INDOOR POLLUTANTS
|
|
- Cornelius Lewis Blake
- 6 years ago
- Views:
Transcription
1 THE PAIRED CASE-CONTROL STUDY BETWEEN AR IN ADULTS AND INDOOR POLLUTANTS Weiwei YU, and Xiaochuan PAN Department of Occupation and Environmental Health, Peking University School of Public Health, Beijing, , China ABSTRACT Background Allergic rhinitis (AR) is a very common disease with an increasing prevalence to 10-20% over the last 40 years all over the world including developing countries like China. But the reasons have not yet been known clearly. In recent years, There is an overwhelming evidence that sensitization to indoor allergens is a major risk factor for the development of clinical atopic disease because many people spend much of their life indoors (Kaiser,-H-B., 2004). Objective to investigate the association between AR in adults and indoor pollutants: NO 2, PM 2.5, formaldehyde, and mould in air and dust mites in dust. Methods Using 1:1 paired matching case control study design, we recruited 100 pairs of adults AR patients and the relevant control from the E.N.T.department of Renmin Hospital of Peking university, and detected formaldehyde in their kitchens and bedrooms, dust mites and fungi in bedrooms, Nitrogen dioxide (NO 2 ) in kitchens.the results of detections and questionnaires were analyzed by signal and multiple conditional regression model of SAS8.2 software. Results From the study we can see that AR is significantly associated with bedroom formaldehyde (OR =1.41,95%CI: ),kitchen formaldehyde(or= 1.64,95%CI: ),total fungi(or= 1.53,95%CI: ) and Dp (OR=1.58,95%CI: ) among indoor air pollutants after adjusting for exposure to dusts,present smoking and family AR or asthma history. In addition, after ranking the concentration of air pollutants into 4 quarters, there was a definite dose-response relationship between adults AR and total fungi, formaldehyde and Dp. But only the fourth rank had significantly statistic difference between AR and bedroom formaldehyde(or=4.05, 95%CI : ),kitchen formaldehyde(or= 31.94,95%CI: ),total fungi(or= 2.64,95%CI: ) and Dp (OR= 2.44,95%CI: ) after being adjusted. Conclusions Adults with AR had a preferential sensitization to the total fungi, formaldehyde and Dp species. Furthermore there was a definite dose-response relationship between the adults AR and indoor air total fungi, formaldehyde and dust Dp exposure. KEYWORDS AR risk factors indoor activities case-control study INTRODUCTION AR is a common disease in clinic and has been and will be increasing in a long term. Since year 3000 BC, pollenology (science that studies allergens) was already known. In the year 49 BC, Herodotus recognized the first case of hay fever; Jacob Constant (17th century) described the first case of AR and related it to "something" (allergens) that roses emitted. Charles Backley (1873) proved the ability of the skin to determine allergic reactions to allergens. In recent years there are many theories to explain the Corresponding Author: Tel: (O) address: xcpan@bjmu.edu.cn
2 reasons including better diagnosis, urban living, and higher exposure to dust mites, atmospheric pollution, nutrition, lifestyle changes, maternal smoking, diesel fumes, geography, the "hygiene hypothesis," and several others. But until now nobody knows why with certainty. It has been known that environmental issues and lifestyle changes are becoming increasingly more important as significant risk factors. There is overwhelming evidence that sensitization to indoor allergens is a major risk factor for the development of clinical atopic disease, because many people spend much of their life indoors (Kaiser,-H-B., 2004). MATERIALS AND METHODS Case selection. Approved to be AR without asthma by the E.N.T. (Ear nose throat) department of Renmin Hospital of Peking university with SPT (Skin prick test) and others; the age should be more than eighteen years old; the consciousnesses were clear enough to response the questionnaire and approval of indoor detection. Control selection. Nonallergic disease patients that were diagnosed by the E.N.T.department of Renmin Hospital of Peking university; the age should be more than eighteen years old; the consciousnesses were clear enough to response the questionnaire and approval of indoor detection. Questionnaire. interviewed by face to face with designed epidemiological health questionnaire indoor air and health questionnaire, according to international study asthma and allergies in adults (ISAAA), consisted of 64 items, including general social demographic characters,disease history, smoking history, occupation, indoor environmental situation and genetic family history was administered by trained research assistants.
3 Indoor detection. We detected the formaldehyde in kitchens and bedrooms, dust mites in bedroom dust and airborne fungi in bedrooms, and NO2 in kitchens between July13 to July 24. All samples except dust mites which were vacuumed the dust at the time, needed 24 hours and were taken back at the same time of the next day. Temperature and relative humidity were recorded by Mannix digital thermo-hygrometer at the time of sampling. The test of the samples must be completed within one week after sampling. Formaldehyde. Formaldehyde was measured with a passive sampling badge, and placed in the bedrooms 1.2m above the floor for 24 hours and then analyzed by AHMT colorimetric method. NO 2. a passive NO2 sampling badge was placed in the bedrooms 1.2m above the floor for 24 hours and then analyzed by Saltzaman hydrochloric acid naphthalene ethylenediamine colorimetric method. Fungal airborne. A centrifugal type portable air sampler (#LWC-1, Byxy Manufacturing Co., Beijing) in combination with culture medium strips was used to collect fungal airborne propagules. The sampling period was 1 min, and two sampling sites in a bedroom is a diagonal. After then, the strips were incubated at 25 for 48 hours, after which the resulting colonies were counted. Fungi were identified to level genus and, if possible, to species level by colony structure or microscopic examination of the spore structure. Concentrations were reported as colony-forming units per cubic meter (CFU/m3) of air. Dust mites. The floor carpet, mattress, pillows, sofa in the Participators bedrooms were vacuumed for 5 min, using a German canister vacuum cleaner (#N-191, Solac Co, Germany). After sampling, the dust was sealed in a plastic bag and was taken back to the laboratory the same day and weighed. Then analyzed for allergen content with enzyme-linked immunosorbent assay (ELISA)for Df and Dp in the dust(half quantitative method). PM2.5. Twenty-four hour average PM2.5 mass concentrations were measured using single pore multiple-stage impactors (#224-PCXR8,SKC company, America). The concentrations were calculated with the mass difference after and before sampling. Statistical methods. The questionnaires were logged in and error was corrected with epidata3.2 software, and the detection data were inputted with Microsoft Excel We performed all statistical analyses using SAS statistical software (version 8.2, SAS Institute Inc., Cary, NC) and SPSS (version 10.0, Insightful Corporation, Seattle, WA) statistical package. Paired t test, correlation, multivariate liner regression, signal and multivariate conditional Logistic regression analysis were used to analyze the significance of the differences between two groups that may confound the relationship between the indoor pollutant levels and adults AR. RESULTS General condition. We tabulated the results according to table 1, Of the 100 pairs adults included in this analysis, male sex was 49 pairs, female sex was 51 pairs, the rate of sex is 0.96:1, age in case group was between 19 to 77 with mean 42.67±14.08; age in control group was between 18 to 81 with mean 42.78±14.14; There were no significantly statistic difference in education, nationality, marriage statement and occupation (P>0.05 respectively).
4 The compare of the indoor pollutants concentration in two groups From table 1, The concentration of the bedroom formaldehyde, kitchen formaldehyde, total fungi, Pen, Df, Dp in bedrooms were higher in case group than that in controls and the difference had statistical significance (P<0.05), while the concentration of Asp, PM 2.5 in bedrooms and NO 2 in kitchens had no statistical significance between the case and control groups (P>0.05). The relationship between indoor pollutants and AR According to 25%, 50%, and 75% and above 75 % of the concentration of different pollutants, we ranked 4 grades from lowest to highest with each pollutant. after ranking the indoor pollutants which had statistical significance for 4 grades, we can see that the concentration of bedroom and kitchen formaldehyde was higher in the last two ranks than the criterion of indoor air quality (<100ug/m 3 ).the concentration of bedroom and kitchen formaldehyde had no significant difference(p=0.86) after analyzed with paired t test,and also there were positive correlations between the kitchen and bedroom formaldehyde(r=0.20,p<0.01),between total fungi and Pen (r=0.56,p<0.05), between Df and Dp(r=0.60,p<0.05) (table 3). The dose response relationship between AR and indoor pollutants After ranking the concentration of air pollutants into 4 quarters, the other 3 quarters unadjusted OR values of formaldehyde in bedrooms, formaldehyde in kitchens, total fungi, Dp were increasing respectively comparing with the first quarter and after adjusting for exposure to dusts, present smoking and family AR or asthma history, the OR values of them were all increasing also. But only the fourth ranks of them except total fungi which both the unadjusted third and fourth ranks had significant differences between case and control groups both unadjusted and adjusted. Meanwhile, the total trend of OR value showed that the risk of the adults AR would be increased 1.48times (unadjusted) and 1.41 times (adjusted) with each quarter increasing of the bedroom formaldehyde concentration, and 1.58 times (unadjusted) and 1.64 times (adjusted) with each quarter increasing of the kitchen formaldehyde concentration, and 1.53 times (both unadjusted and adjusted) with each quarter increasing of the bedroom total fungi concentration, and 1.45times (unadjusted) and 1.58 times (adjusted) with each quarter increasing of the bedroom Dp(not shown). The risk of the adults AR would be increased times and times than before when the bedroom total fungi and Pen concentration increasing each 1cfu/ m 3, and times with a increase in bedroom and times with a increase in kitchen formaldehyde levels of 1µg/ m 3, after analyzing the values of different pollutants concentration with the conditional Logistic regression (not shown). Discussion This study showed that there was a close relationship between indoor pollutants and doctor-diagnosed AR in adults. Factors associated with an increased risk of AR included overall concentration of bedroom fungi and formaldehyde in bedrooms and kitchens, bedroom Dp after analyzing by paired t test, independent of exposure to dusts, present smoking and family AR or asthma history. Formaldehyde had correlation with AR, and children were more allergic (Tatsuo Sakamoto, Satoru Doi, et al.,1999,, M.H.Gartette.et al.,2000); In 27 medical students, a 10-week exposure to inhaled formaldehyde, specific IgE against formaldehyde were assessed, which seemed that formaldehyde could induce an IgE-mediated sensitization although not determined (F. Wantke, M. Focke,etal,2000). Furthermore there was a dose-response relationship between the adults AR and bedroom or kitchen formaldehyde. The risk was serious by the increase of the concentration of formaldehyde (M.H.Gartette.et al., 2000). In our study, the risk of formaldehyde in two groups had significant
5 difference only in the fourth rank ( ug/m 3 in bedroom and ug/m3 in kitchen) (OR=4.05, 95%CI: , bedroom, OR=21.94, 95%CI: , kitchen) with the OR value increasing respectively comparing with the first quarter. Furthermore, the formaldehyde concentration increased and times specifically with an increase in bedroom and kitchen formaldehyde levels of 1µg/ m 3. Table 2 distribution of ranking the indoor pollutants Variables Rank N x ±s.d Range ± ± Bedroom formaldehyde *a ± ± Total ± ± ± Kitchen formaldehyde *a ± ± Total ± ± ± Total fungi ** ± ± Total ± ± Pen ** ± ± Total ± ± ± Df *** Dp *** ± ± Total ± ± ± ± ± Total ± a: bedroom and kitchen formaldehyde paired t test p value=0.86. *: r=0.20,p<0.05,the correlation between the kitchen and bedroom formaldehyde. **: r=0.56,p<0.05,the correlation between fungi and Pen. ***: r=0.60,p<0.05,the correlation between Df and Dp.
6 Table 3 the correlation between indoor pollutants and adults AR Pollutants rank AR Number Yes No Unadjusted OR 95% CI Adjusted# OR 95% CI ( ) 1.05( ) Bedroom ( ) 1.74( ) formaldehyde ( )** 4.05( )** Trend 1.48( )** 1.41( )* ( ) 1.11( ) Kitchen ( ) 1.18( ) formaldehyde ( )** 31.94( )** Trend 1.58 ( ) ** 1.64( ) ** ( ) 0.91( ) Total fungi ( )* 1.99( ) ( )** 2.64 ( )* Trend 1.53 ( )** 1.53( )** ( ) 0.61( ) Pen ( ) 1.13( ) ( )* 1.79( ) Trend 1.30 ( )* 1.18( ) ( ) 1.27( ) Df ( ) 1.60( ) ( )* 1.43( ) Trend 1.28( ) 1.25( ) ( ) 1.22( ) Dp ( ) 2.40( ) ( )* 2.44( ) * Trend ( ) * 1.58( ) * *: p<0.05, **: p<0.01 #: Adjusted for exposure to dusts, present smoking and family AR or asthma history There is a large literature demonstrating the relationship between fungal sensitization and AR, as well as a growing literature linking fungal exposure to rhinitis exacerbation (Downs SH, Mitakakis TZ,2001, Halonen M, Stern DA,1997). Other studies also found associations between measures of total fungi and health outcomes (Gent JF, Ren P,2002). The fact that fungal exposure in sensitized individuals may result in histamine and IgE-mediated nasal inflammation (Skoner DP,2001).
7 (1 3)-D-Glucans-glucose polymers that are structural components of most fungal cell walls-are known to stimulate macrophages and neutrophils (Chew GL, Douwes J,2001, Beijer L, Thorn J,2002). It also indicated in our study that only in a certain high concentration with the mean of 1565 cfu/m 3 (1000 cfu/m cfu/m 3 ) of total fungi could result in AR incidence or exacerbation. Also, the risk of the adults AR would be increased times and times than before when the bedroom total fungi and Pen concentration increasing each 1cfu/ m 3. The allergen of dust mites is a kind of protein enzyme secreted from dust mites enteron which augments the penetration of the respiration cells and stimulates the immune system to engender allergic reaction, so that results in the inflammation of the nasal mucous membrane (Li Jianlin et al.,2005). Sun Zhenfeng et al. found that Skin prick test (SPT) result was positive for traditional house dust mites (Dp and Df mix) in 85% of patients of allergic rhinitis both in children and adults groups (Sun Zhenfeng, Meng Qinghong, et al, 2003). In addition, there was a definite dose-response relationship between the adults AR and indoor dust Dp, and the OR value had the significant difference when the mean of concentration was more than 1.11 ( )*100 IU/ml. The risk of the adults AR would be 2.44 times comparing with the first rank. Potential study limitations Using 1:1 paired case-control design added the reliability between two groups and the statistic efficiency was enhanced when age and sex were well matched. Furthermore a large sample size (100 pairs) could be better to reflect the general level of indoor pollution in Beijing, while this study does have some limitations. Potential limitations of our work include the indoor pollutants exposure is relatively complex, along with the multiplicity of variables being considered. Our use of the questionnaire and detection altogether approach provides an efficient and appealing method for handling multiplicity issues. Even so, the reality is that some important differences may have been missed. In addition, the air and dust samples were single, short-term samples. Therefore, it is not clear how representative the samples are of long-term household indoor pollutant levels. REFERENCES Beijer L, Thorn J, Rylander R Effects after inhalation of(1 3)-β-D-glucan and relation to mould exposure in the home. Mediators Inflamm 11(3): Chew GL, Douwes J, Doekes G, Higgins KM, Spithoven J, van Strien R et al Fungal extracellular polysaccharides,and β (1 3) glucans, and culturable fungi in repeated sampling of house dust. Indoor Air 11(3): Downs SH, Mitakakis TZ, Marks GB, Car NG, Belousova EG, Leuppi JD, et al Clinical importance of Alternaria exposure in children. Am J Respir Crit Care Med 164(3): F. Wantke, M. Focke, W. Hemmer, et,al. Exposure to formaldehyde and phenol during an anatomy dissecting course: sensitizing potency of formaldehyde in medical students. Allergy 2000: 55: Gent JF, Ren P, Belanger K, Triche E, Bracken MB, Holford TR,et al Levels of household mold associated with respiratory symptoms in the first year of life in a cohort at risk for asthma. Environ Health Perspect 110:A781 A786.
8 Halonen M, Stern DA, Wright AL, Taussig LM, Martinez FD Alternaria as a major allergen for asthma in children raised in a desert environment. Am J Respir Crit Care Med 155: Kaiser,-H-B. Risk factors in allergy/asthma. Allergy-Asthma-Proc Jan-Feb;25(1): Li Jianlin et al. Perennial AR indoor biological pollutants investigation [J].Environment and health, 2005(22) 4: M.H.Gartette.et al. Increased risk of allergy in children due to formaldehyde exposure in homes. Allergy, 2000,54: Skoner DP AR: definition, epidemiology, pathophysiology, detection, and diagnosis. J Allergy Clin Immunol 108:S2 S8. Sun Zhenfeng, Meng Qinghong, Dong Pin. 458 AR SPT results analysis [J]. General medical Newspaper in ShanDong University,2003,17 (1): Tatsuo Sakamoto, Satoru Doi and Shinpei Torii.Effects of formaldehyde, as an indoor air pollutant, on the airway. Allergology International,1999 (48):
THE ROLE OF INDOOR ALLERGEN SENSITIZATION AND EXPOSURE IN CAUSING MORBIDITY IN WOMEN WITH ASTHMA
Online Supplement for: THE ROLE OF INDOOR ALLERGEN SENSITIZATION AND EXPOSURE IN CAUSING MORBIDITY IN WOMEN WITH ASTHMA METHODS More Complete Description of Study Subjects This study involves the mothers
More informationEar, Nose & Throat (ENT) - Head & Neck Surgery. Allergic Rhinitis (Sinus)
Ear, Nose & Throat (ENT) - Head & Neck Surgery Allergic Rhinitis (Sinus) The Department of Ear, Nose & Throat (ENT) - Head & Neck Surgery provides a wide range of surgical services for adult patients with
More informationAtopy pyramid. Dr Tan Keng Leong
Allergy in Respiratory Airway Disease and Beyond Unit No. 5 Dr Tan Keng Leong ABSTRACT Allergy is a significant triggering factor in asthma and allergic rhinitis. Inhaled allergens and IgE-mediated allergic
More informationAllergen and Environment in Severe Asthma
Allergen and Environment in Severe Asthma Hye-Ryun Kang MD., PhD. Department of Internal Medicine, Seoul National University Hospital Role of Allergen in Asthma Pathogenesis Early response of allergen
More informationControlled Studies of Environmental Allergen Remediation in U.S. Homes: Cockroach Allergen
Controlled Studies of Environmental Allergen Remediation in U.S. Homes: Cockroach Allergen Samuel J. Arbes, Jr. Staff Scientist and Epidemiologist Laboratory of Respiratory Biology Outline for Today s
More informationInfant respiratory symptoms in relation to mite allergen exposure
Eur Respir J, 1996, 9, 926 931 DOI: 10.1183/09031936.96.09050926 Printed in UK - all rights reserved Copyright ERS Journals Ltd 1996 European Respiratory Journal ISSN 0903-1936 Infant respiratory symptoms
More informationEmil J. Bardana, Jr., M.D. Oregon Health Sciences University
INDOOR ALLERGENS AND IRRITANTS: WITH EMPHASIS ON MOLDS IN THE ASSESSMENT OF INDOOR QUALITY COMPLAINTS Emil J. Bardana, Jr., M.D. Oregon Health Sciences University INTRODUCTION (1) Homes protect inhabitants
More informationDust Mite Allergy. Introduction Of the many components in house dust to which people may be allergic, the most important is the house dust mite.
Dust Mite Allergy Introduction Of the many components in house dust to which people may be allergic, the most important is the house dust mite. House dust mites are microscopic, insect-like creatures related
More informationAssessing Allergic Sensitivities and Allergen Exposures
Assessing Allergic Sensitivities and Allergen Exposures James A. MacLean, M.D. Partners Asthma Center North Shore Asthma and Allergy Affiliates Massachusetts General Hospital Harvard Medical School Objectives
More informationIn addition to house dust mites (HDMs), pet dandruff, and
ORIGINAL ARTICLE Detection of Fungi in Indoor Environments and Fungus-Specific IgE Sensitization in Allergic Children Mitsuhiko Nambu, MD, PhD, 1 Hisashi Kouno, MT, 2 Maki Aihara-Tanaka, PhD, 3 Hideharu
More informationFungal Levels in the Home and Allergic Rhinitis by 5 Years of Age
Fungal Levels in the Home and Allergic Rhinitis by 5 Years of Age The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters. Citation Published
More informationAvg PM10. Avg Low Temp
Geography 532 Geography of Environmental Health Dr. Paul Marr Name: Ex 16- Seasonality, Time Delay, and Disease (10 pts) Below are asthma cases per month for the years 1992-1994. The table also includes
More informationMicrobiomes of the Built Environment: Homes
Microbiomes of the Built Environment: Homes Tiina Reponen, PhD, Professor Center for Health Related Exposure Assessment Department of Environmental Health University of Cincinnati Microbiomes of the Built
More informationOn-Line Supplement. Endotoxin Exposure: Predictors and Prevalence of Associated Asthma Outcomes in the U.S.
On-Line Supplement Endotoxin Exposure: Predictors and Prevalence of Associated Asthma Outcomes in the U.S. Peter S. Thorne, PhD, a * Angelico Mendy, MD, MPH, a Nervana Metwali, PhD, a Päivi Salo, PhD,
More informationMaternal food consumption during pregnancy and the longitudinal development of childhood asthma
Maternal food consumption during pregnancy and the longitudinal development of childhood asthma Saskia M. Willers, Alet H. Wijga, Bert Brunekreef, Marjan Kerkhof, Jorrit Gerritsen, Maarten O. Hoekstra,
More informationAileen Gagney Environmental and Lung Health Program Manager American Lung Association of the Mountain Pacific
Aileen Gagney Environmental and Lung Health Program Manager of the Mountain Pacific Course Objectives Learn the definition of asthma, alterations in the lung anatomy and the symptoms Learn to identify
More informationNIOSH FIELD STUDIES ON DAMPNESS AND MOLD AND RELATED HEALTH EFFECTS
NIOSH FIELD STUDIES ON DAMPNESS AND MOLD AND RELATED HEALTH EFFECTS Jean Cox-Ganser, Ph.D. Division of Respiratory Disease Studies The findings and conclusions in this presentation are those of the author
More informationWhy does the body develop allergies?
Allergies & Hay Fever Millions of Americans suffer from nasal allergies, commonly known as hay fever. Often fragrant flowers are blamed for the uncomfortable symptoms, yet they are rarely the cause; their
More informationEnvironmental Allergens. Allergies to Dust, Mold and Pollen. A Patient s Guide
Environmental Allergens Allergies to Dust, Mold and Pollen A Patient s Guide Our environment, at home or outdoors, can be a potent source of allergens causing itchy, puffy and watery eyes, sneezing, a
More informationWhat is Asthma? Chronic disease of the airways that may cause Wheezing Breathlessness Chest tightness Night time or early morning coughing
Asthma What is Asthma? Chronic disease of the airways that may cause Wheezing Breathlessness Chest tightness Night time or early morning coughing Episodes are usually associated with widespread, but
More informationEPR 3 (2007) Measures of Assessment and Monitoring Education Control of Environmental Factors Medication
EPR 3 (2007) Component 1: Measures of Assessment and Monitoring Component 2: Education Component 3: Control of Environmental Factors Component 4: Medication KEY DIFFERENCES FROM 1997 EXPERT PANEL REPORT
More informationThere's something in the air...
There's something in the air... Indoor pollutants, allergens and environmental toxins Bio-Check opens your eyes to the risks. With children, high exposure to allergens can trigger lifelong illnesses, e.g.
More informationP R E S E N T S Dr. Mufa T. Ghadiali is skilled in all aspects of General Surgery. His General Surgery Services include: General Surgery Advanced Laparoscopic Surgery Surgical Oncology Gastrointestinal
More informationMajor Environmental Allergens
Disclosures Major Environmental Allergens Indoor Outdoor Grass pollen Weed pollen Tree pollen Mold Guidelines and Indoor Allergens In asthma patients who are sensitized: Allergen exposure increases asthma
More informationAN EVALUATION OF THE INDOOR/OUTDOOR AIR POLLUTION AND RESPIRATORY HEALTH OF FARMERS LIVING IN RURAL AREAS OF ANHUI PROVINCE, CHINA
AN EVALUATION OF THE INDOOR/OUTDOOR AIR POLLUTION AND RESPIRATORY HEALTH OF FARMERS LIVING IN RURAL AREAS OF ANHUI PROVINCE, CHINA X-C Pan 1*, Z Dong 2, L Wang 3 and W Yue 1 1 Dept. of Occupational and
More informationDoes rhinitis. lead to asthma? Does sneezing lead to wheezing? What allergic patients should know about the link between allergic rhinitis and asthma
Does rhinitis lead to asthma? Does sneezing lead to wheezing? What allergic patients should know about the link between allergic rhinitis and asthma For a better management of allergies in Europe Allergy
More informationIndoor Allergens and Allergen Avoidance. Dennis R. Ownby, MD Georgia Regents University Augusta, GA
Indoor Allergens and Allergen Avoidance Dennis R. Ownby, MD Georgia Regents University Augusta, GA downby@gru.edu Disclosure Employment Georgia Regents University Financial Interests Nothing to disclose
More informationChallenges associated with mold:
Challenges associated with mold: assessments of sensitization and exposure diverse health effects establishing a relationship between mold exposure and disease Fungi associated with respiratory disease
More informationDamp Housing and Childhood Respiratory Symptoms: The Role of Sensitization to Dust Mites and Molds
American Journal of Epidemiology Copyright O 1995 by The Johns Hopkins University School of Hygiene and Public Hearth All rights reserved Vol. 141, 2 Printed in U.S.A. Damp Housing and Childhood Respiratory
More informationAmerican Journal of EPIDEMIOLOGY
Volume 158 Number 3 August 1, 2003 American Journal of EPIDEMIOLOGY Copyright 2003 by The Johns Hopkins Bloomberg School of Public Health Sponsored by the Society for Epidemiologic Research Published by
More informationyour triggers? Information about a simple lab test that lets you Know Your IgE.
What your are CAT DANDER DUST MITE triggers? Knowing if you have allergic triggers can help you manage your symptoms. Know yours and take control. OAK Information about a simple lab test that lets you
More informationDiscover the connection
Jill is about to have asthma symptoms and she won t know why. Timothy grass ASTHMA Dog dander House dust mites Underlying allergies affect asthma Discover the connection Specific IgE blood testing helps
More informationEnvironmental factors influencing the development and progression of pediatric asthma
Environmental factors influencing the development and progression of pediatric asthma Erika von Mutius, MD Munich, Germany Recent data underscore the importance of environmental factors in the sensitization
More informationHome dampness, current allergic diseases, and respiratory infections among young adults
462 Department of Pulmonary Diseases and Clinical Allergology, University of Turku, Turku, Finland M Kilpeläinen E O Terho Department of Biostatistics, University of Turku H Helenius Department of Public
More information1. Instructions: Please answer the questions as they relate to the person being evaluated. Bring this form with you to your first appointment.
Patient s Name Date of Appointment Date of Birth Referring Physician 1. Instructions: Please answer the questions as they relate to the person being evaluated. Bring this form with you to your first appointment.
More informationWanda Phipatanakul, M.D., M.S., FAAAAI
Principals Of Healthy Homes: What to Look for and How it Helps Your Patients: What Works, What Doesn t, and What Needs to Be Done Wanda Phipatanakul, M.D., M.S., FAAAAI Associate Professor of Pediatrics
More informationAIR PURIFICATION AND AROMATHERAPY SYSTEM
AIR PURIFICATION AND AROMATHERAPY SYSTEM Dusty Air! It is widely acknowledged that the air in today s homes is filled with dust, pollen, mold and thousands of other pollutants. Regardless of their state
More informationOtitis, rhinitis, and atopy in relation to domestic endotoxin and b-glucan exposure among children in Singapore
Environ Health Prev Med (2010) 15:271 275 DOI 10.1007/s12199-010-0137-2 REGULAR ARTICLE Otitis, rhinitis, and atopy in relation to domestic endotoxin and b-glucan exposure among children in Singapore Lynne
More informationHealth and the Domestic Environment. Accidents Mental health Respiratory health Cardiovascular health. Xcess winter mortality
Health and the Domestic Environment Accidents Mental health Respiratory health Cardiovascular health Xcess winter mortality Lung Health and the Domestic Environment Indoor environment health effects: Asthma
More informationI n the western world most people spend a significant
937 ENVIRONMENTAL EXPOSURE Indoor exposures and respiratory symptoms in a rwegian community sample T Duelien Skorge, T M L Eagan, G E Eide, A Gulsvik, P S Bakke... See end of article for authors affiliations...
More informationExposure to Indoor Pollutants and Wheeze and Asthma Development during Early Childhood
Int. J. Environ. Res. Public Health 2015, 12, 3993-4017; doi:10.3390/ijerph120403993 OPEN ACCESS Review International Journal of Environmental Research and Public Health ISSN 1660-4601 www.mdpi.com/journal/ijerph
More informationHome Dampness and Molds as Determinants of Allergic Rhinitis in Childhood: A 6-Year, Population-based Cohort Study
American Journal of Epidemiology Advance Access published July 16, 2010 American Journal of Epidemiology ª The Author 2010. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg
More informationLEARNING MODULE #17: ENVIRONMENTAL HEALTH: ISSUES AND IMPACT
LEARNING MODULE #17: ENVIRONMENTAL HEALTH: ISSUES AND IMPACT Environmental Health: Issues and Impact Carol Ann Gross-Davis, PhD, MS Adjunct Assistant Professor Drexel University, School of Public Health
More informationPathology of Asthma Epidemiology
Asthma A Presentation on Asthma Management and Prevention What Is Asthma? A chronic disease of the airways that may cause Wheezing Breathlessness Chest tightness Nighttime or early morning coughing Pathology
More informationAbstract INTRODUCTION. Keywords: atopic asthma, children, fungus sensitization ORIGINAL ARTICLE
ORIGINAL ARTICLE Fungus Sensitizations: Specific IgE to 4 Different Fungi among Asthmatic Children in North Taiwan Yu-Ting Yu, Shyh-Dar Shyur, Hwai-Chih Yang, Szu-Hung Chu, Yu-Hsuan Kao, Hou-Ling Lung,
More informationPatient: Respiratory health and policies affecting indoor and outdoor air quality. Breda Flood Board Member Asthma Society of Ireland
Patient: Respiratory health and policies affecting indoor and outdoor air quality Breda Flood Board Member Asthma Society of Ireland POLICIES: Industry Energy Chemicals Transport Environment Health Research
More informationIntroduction To Indoor Air Quality Clear Relationship Between Indoor Air Pollution And Health
Introduction To Indoor Air Quality Clear Relationship Between Indoor Air Pollution And Health MOONRIVERCHATTEL https://moonriverchattel.com Contents Introduction To Indoor Air Quality Clear Relationship
More informationRepeated antigen challenge in patients with perennial allergic rhinitis to house dust mites
Allergology International (2003) 52: 207 212 Original Article Repeated antigen challenge in patients with perennial allergic rhinitis to house dust mites Minoru Gotoh, Kimihiro Okubo and Minoru Okuda Department
More informationallergic rhinitis 3C47E65837E D1B E Allergic Rhinitis 1 / 6
Allergic Rhinitis 1 / 6 2 / 6 3 / 6 Allergic Rhinitis Allergic rhinitis is a diagnosis associated with a group of symptoms affecting the nose. These symptoms occur when you breathe in something you are
More informationClinical Study Principal Components Analysis of Atopy-Related Traits in a Random Sample of Children
International Scholarly Research Network ISRN Allergy Volume 2011, Article ID 170989, 4 pages doi:10.5402/2011/170989 Clinical Study Principal Components Analysis of Atopy-Related Traits in a Random Sample
More informationTHE EFA PROJECT: INDOOR AIR QUALITY IN EUROPEAN SCHOOLS
THE EFA PROJECT: INDOOR AIR QUALITY IN EUROPEAN SCHOOLS P Carrer 1*, Y Bruinen de Bruin 1, M Franchi 2, E Valovirta 2 1 Department of Occupational Health, ICP Hospital and University of Milan 2 European
More informationThe prevalence of atopic diseases in childhood
Paediatrica Indonesiana VOLUME 54 March NUMBER 2 Original Article Caesarean delivery and risk of developing atopic diseases in children Anak Agung Tri Yuliantini 1, Mohammad Juffrie 2, Ketut Dewi Kumara
More informationFungal exposure, atopy and asthma exacerbations in Puerto Rican children ONLINE DATA SUPPLEMENT
Fungal exposure, atopy and asthma exacerbations in Puerto Rican children ONLINE DATA SUPPLEMENT Joshua Blatter, MD 1, Erick Forno, MD, MPH 1, John Brehm, MD, MPH 1, Edna Acosta- Pérez, PhD 2, María Alvarez,
More information(1 3)- -D-Glucan and Endotoxin in House Dust and Peak Flow Variability in Children
(1 3)- -D-Glucan and Endotoxin in House Dust and Peak Flow Variability in Children JEROEN DOUWES, ARJAN ZUIDHOF, GERT DOEKES, SASKIA van der ZEE, INGE WOUTERS, H. MARIKE BOEZEN, and BERT BRUNEKREEF Environmental
More informationAllergies from A to Z
Allergies from A to Z Rana T. Misiak, i MD Senior Staff Physician Henry Ford Health System Clinical Assistant Professor Wayne State University School of Medicine Objective To discuss the causes and treatment
More informationJanuary 31, Mr. Mark LaFleur Director of Plant Operations Town of Needham 1330 Highland Avenue Needham, MA 02492
OccuHealth, Inc. 44 Wood Avenue Mansfield, MA 02048 Occupational Health & Safety, Environmental Consultants Tel. (508) 9-9119 Tel. (800) 729-105 Fax (508) 9-289 thamilton@occuhealth.com January 1, 2007
More informationAsthma Triggers. It is very important for you to find out what your child s asthma triggers are and learn ways to avoid them.
Asthma s It is very important for you to find out what your child s asthma triggers are and learn ways to avoid them. With asthma, your child s airways are very sensitive. Things, called triggers, may
More informationAsthma: a major pediatric health issue Rosalind L Smyth
Asthma: a major pediatric health issue Rosalind L Smyth University of Liverpool, Institute of Child Health, Alder Hey Children s Hospital, Liverpool L12 2AP, UK Corresponding author: Rosalind L Smyth (e-mail:
More informationR. Masekela. Paediatric Pulmonologist and Allergist
R. Masekela Paediatric Pulmonologist and Allergist Outline Definitions i i Biomass fuels Atopy Respiratory tract Environmental tobacco smoke (ETS) Respiratory tract. HIV Atopy Traffic related air pollutants
More informationAllergic Rhinitis in Children
Allergic Rhinitis in Children Symptoms Rhinitis means inflammation of the mucous membranes in the nose. The common symptoms associated with rhinitis are an itchy nose, red eyes, watery discharge from the
More informationHealth risk assessment of fungi in home environments
Review article Supported by a grant from Zeneca Pharmaceuticals Health risk assessment of fungi in home environments Arnoud P Verhoeff, PhD* and Harriet A Burge, PhD Learning Objectives: Reading this article
More informationCat and dog sensitization in pet shop workers
Occupational Medicine 2013;63:563 567 Advance Access publication 30 October 2013 doi:10.1093/occmed/kqt116 Cat and dog sensitization in pet shop workers I. Yilmaz 1, F. Oner Erkekol 2, D. Secil 1, Z. Misirligil
More informationDr Toni Gladding Open University
Composting and Bioaerosols Dr Toni Gladding Open University Some Environmental Impacts of Composting Odour Bioaerosols Litter Visual Impact Noise Distance to sensitive receptors Leachate and Liquor Possible
More informationAsthma, rhinitis, and asthmarelated symptoms in relation to vehicle exhaust using different exposure metrics.
Umeå University Medical Dissertations Series No 1269, ISSN 0346-6612, ISBN 978-91-7264-793-0 Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine Umeå University,
More informationGlossary of Asthma Terms
HealthyKidsExpress@bjc.org Asthma Words to Know Developed in partnership with Health Literacy Missouri Airways (Bronchi, Bronchial Tubes): The tubes in the lungs that let air in and out of the body. Airway
More informationIdentifying Biologic Targets to Attenuate or Eliminate Asthma Exacerbations
Identifying Biologic Targets to Attenuate or Eliminate Exacerbations exacerbations are a major cause of disease morbidity and costs. For both children and adults, viral respiratory infections are the major
More informationQuestionnaire-based Study on the Relationship between Pet-keeping and Allergic Diseases in Young Children in Japan
Allergology International. 2005;54:52-526 ORIGINAL ARTICLE Questionnaire-based Study on the Relationship between Pet-keeping and Allergic Diseases in Young Children in Japan Toshiyuki Fukao, Osamu Fukutomi
More informationCONCENTRATIONS OF VIABLE FUNGAL SPORES ON PAPER DOCUMENTS
1 INTRODUCTION CONCENTRATIONS OF VIABLE FUNGAL SPORES ON PAPER DOCUMENTS This work was performed as part of a broader Indoor Air Quality (IAQ) response action, which lasted in excess of eight months. A
More informationLaboratory animal allergy (LAA) is a serious occupational hazard
ORIGINAL ARTICLE Prevention of Laboratory Animal Allergy in the United States A National Survey Gregg M. Stave, MD, JD, MPH, and Dennis J. Darcey, MD, MPH, MSPH Objective: Respiratory allergy to laboratory
More informationRESEARCHERS FROM A*STAR AND NUS IMPLICATE HOUSE DUST MITES AS THE MAIN CAUSE OF RESPIRATORY ALLERGIES IN SINGAPORE
MEDIA RELEASE 07 Feb 2014 RESEARCHERS FROM A*STAR AND NUS IMPLICATE HOUSE DUST MITES AS THE MAIN CAUSE OF RESPIRATORY ALLERGIES IN SINGAPORE Study findings provide a basis for developing effective allergy
More informationAdverse Health Effects Associated with the Indoor Air Quality of Flood-Damaged Structures
Proactive By Design. Our Company Commitment Adverse Health Effects Associated with the Indoor Air Quality of Flood-Damaged Structures June 23, 2016 Kimberly A. Hoppe Parr, PhD. GZA GeoEnvironmental, Inc.
More informationAssociation between domestic mould and mould components, and asthma and allergy in children: a systematic review
Eur Respir J 2011; 38: 812 824 DOI: 10.1183/09031936.00184010 CopyrightßERS 2011 Association between domestic mould and mould components, and asthma and allergy in children: a systematic review C. Tischer*,
More informationMoisture damage and childhood asthma: a population-based incident case control study
Eur Respir J 2007; 29: 1 7 DOI: 10.1183/09031936.00040806 CopyrightßERS Journals Ltd 2007 Moisture damage and childhood asthma: a population-based incident case control study J. Pekkanen*,#, A. Hyvärinen*,
More informationA review of the current guidelines for allergic rhinitis and asthma
A review of the current guidelines for allergic rhinitis and asthma Robert F. Lemanske, Jr., MD Madison, Wis. Allergic rhinitis and asthma are common chronic respiratory tract disorders. These disorders
More informationHousing Environment without a Driveway Associated with Early Allergic Symptoms and Allergic Sensitization
2012 International Conference on Environmental, Biomedical and Biotechnology IPCBEE vol.41 (2012) (2012) IACSIT Press, Singapore Housing Environment without a Driveway Associated with Early Allergic Symptoms
More informationExercise and Air Pollution
Exercise and Air Pollution Two Major Groups of Air Pollutants Primary From a single source of pollution CO, sulfur oxides, nitrogen oxides, hydrocarbons, particulants Secondary Result from an interaction
More informationASTHMA. Disclaimer. Multimedia Health Education
ASTHMA Disclaimer This film is an educational resource, and should not be used for decisions about asthma treatment. All such decisions must be made in consultation with a physician or a healthcare provider.
More informationGerman Environmental Survey for Children (GerES IV)
German Environmental Survey for Children (GerES IV) Commissioned by: Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) Federal Ministry of Education and Research (BMBF)
More informationSGRQ Questionnaire assessing respiratory disease-specific quality of life. Questionnaire assessing general quality of life
SUPPLEMENTARY MATERIAL e-table 1: Outcomes studied in present analysis. Outcome Abbreviation Definition Nature of data, direction indicating adverse effect (continuous only) Clinical outcomes- subjective
More informationKeys to Breathing Easy
Keys to Breathing Easy Ways to Manage Your Asthma EHAP Environmental Health Action Project SUPPORTED IN PART BY: Project H17 MC 00170 from Healthy Tomorrows Partnership for Childrens Program, Maternal
More informationAllergen Exposure and Asthma in US Inner-cities
Allergen Exposure and Asthma in US Inner-cities Elizabeth C. Matsui, MD MHS Assistant Professor of Pediatrics Division of Allergy and Immunology Johns Hopkins University May 18, 2006 Pathophysiology of
More informationThe Primary Prevention of Asthma
The Primary Prevention of Asthma Risk Factors Associated with Asthma Onset Ted Schettler Science and Environmental Health Network Collaborative on Health and Environment June, 2013 Asthma: a complex disease(s)
More informationIndex. Immunol Allergy Clin N Am 23 (2003) Note: Page numbers of article titles are in boldface type.
Immunol Allergy Clin N Am 23 (2003) 549 553 Index Note: Page numbers of article titles are in boldface type. A Acari. See Mites; Dust mites. Aeroallergens, floristic zones and. See Floristic zones. Air
More informationGuidance for the Control of Animal Allergens
Environmental & Occupational Health Guidance for the Control of Animal Allergens I. Background Laboratory animal allergy (LAA) is an occupationally acquired condition that affects up to 1/3 of laboratory
More informationInfluence of indoor formaldehyde pollution on respiratory system health in the urban area of Shenyang, China
Influence of indoor formaldehyde pollution on respiratory system health in the urban area of Shenyang, China Zhai L 1, Zhao J 2, Xu B 1, Deng Y 1, *Xu Z 1 1. College of Public Health, China Medical University,
More informationClinical Implications of Asthma Phenotypes. Michael Schatz, MD, MS Department of Allergy
Clinical Implications of Asthma Phenotypes Michael Schatz, MD, MS Department of Allergy Definition of Phenotype The observable properties of an organism that are produced by the interaction of the genotype
More information> Seasonal Allergic Rhinitis (Hay fever)
> Symptoms Rhinitis means inflammation of the mucus membranes in the nose. The common symptoms associated with rhinitis are an itchy nose, red eyes, watery discharge from the nose and/or eyes, a blocked
More informationAsthma Friendly School Environments
Asthma Friendly School Environments Our Mission Prevent lung disease and promote lung health in Mississippi through: Education Advocacy Research What is Asthma? Asthma: Is a life-long disease found in
More informationQuestion 1: What is your diagnosis?
Case study title: Target group: Linked to modules: Outdoor air pollution (Clinical case) Paediatricians, General practitioners, Public health professionals Indoor air pollution, Outdoor air pollution,
More informationCase Study. Allergic Rhinitis 5/18/2015
John A. Fling, M.D. Professor Allergy/Immunology University of North Texas Health Science Center, Fort Worth, Texas Case Study 38 year old male with a history of nasal congestion, clear nasal discharge
More informationThe British Allergy Foundation For more information on hay fever and other allergies, you can contact:-
Sources: Asthma UK The British Allergy Foundation www.prodigy.nhs.uk www.nhsdirect.nhs.uk 2006 Review 2007 March 2008 For more information on hay fever and other allergies, you can contact:- Allergy UK,
More informationDiscover the connection
Susan lives with daily rhinitis symptoms. Pollen House dust mites Timothy grass Underlying allergens affect rhinitis Discover the connection Specific IgE blood testing helps you identify allergic triggers,
More informationFacts about Stachybotrys chartarum and Other Molds
Facts about Stachybotrys chartarum and Other Molds I heard about "toxic molds" that grow in homes and other buildings. Should I be concerned about a serious health risk to me and my family? (/mold/stachy.htm#q1)
More informationTraining for health professionals. Allergies and Asthma Stephan Böse-O Reilly
Training for health professionals Allergies and Asthma Stephan Böse-O Reilly Objective Environmental changes Air pollution Pollen Health effects Asthma and allergies Health Impact 2 Climate change - exposures
More informationIgE-mediated allergy in elderly patients with asthma
Allergology international (1997) 46: 237-241 Original Article IgE-mediated allergy in elderly patients with asthma Fumihiro Mitsunobu, Takashi Mifune, Yasuhiro Hosaki, Kouzou Ashida, Hirofumi Tsugeno,
More informationALLERGIES. and your environment
ALLERGIES and your environment ALLERGIES Respiratory allergy occurs when allergens come into contact with the mucous membranes of the nose, eyes, or bronchial tubes. Allergens may include house dust mites,
More informationHealth Benefits of Residential Energy Efficiency. Jonathan Wilson, Director of Research April 3, 2017
Health Benefits of Residential Energy Efficiency Jonathan Wilson, Director of Research April 3, 2017 New Reports Available https://energy.gov/eere/buildings/downloads/home-rx-healthbenefits-home-performance-review-current-evidence
More informationSlide 1. Slide 2. Slide 3. School Floor Coverings and Indoor Air Quality. Professor Alan Hedge, Cornell University, 10/2001. U.S.
Slide 1 School Floor Coverings and Indoor Air Quality Professor Alan Hedge Dept. Design & Environmental Analysis Cornell University, Ithaca, NY 14853. Slide 2 U.S. Schools 2001 >45 million students attend
More information