The Cochrane Library 2014 CRG Impact Factor and Usage report When considering the citation data presented below, please be aware of the following: The data used to generate Impact Factors for individual Cochrane Review Groups (CRG) was extracted from Thomson Reuters Web of Science. This is slightly different to the data used to calculate the Impact Factor of the Cochrane Database of Systematic Reviews (CDSR). All journal Impact Factors (including the Impact Factor of the CDSR) are published in the Journal Citation Reports. The data used to calculate journal Impact Factors are not made publically available. Individual CRG Impact Factor data, therefore, should not be quoted as official, but can be used within the organisation. Cites for individual Cochrane reviews and individual CRG Impact Factors are allocated by a process of hand-matching. Each year a proportion of cites cannot be matched to articles due to the cited work being cited inaccurately. The table below shows the percentage of cites that were successfully handmatched for the past four Impact Factor reports. The 98% success rate for this report means that the majority of Groups will receive higher CRG Impact Factors than in previous years. Impact Factor Year Cites received* Cites successfully matched % of successfully matched cites 2014 11,932 11,720 98% 2013 9,859 8,515 86% 2012 8,087 6,411 79% 2011 7,721 6,685 87% * Source Journal Citation Reports All New and Updated reviews that have a new citation record are included in the Cochrane Database of Systematic Reviews Impact Factor calculation. Each individual review group faces a variety of challenges in the publication of Cochrane reviews, and some of these may impact upon the data presented below. 1. How the Work Group contributes to Cochrane Database of Systematic Reviews (CDSR): a) Each year in June, Thomson Reuters publish the Impact Factors of all journals indexed in the Journal Citation Report. b) The 2014 Impact Factor for CDSR is 6.032, which describes the ratio of the number of reviews published during 2012 and 2013 (1,978) to the number of citations these reviews received in 2014 (11,932). The 2014 CRG Impact Factor for the Work Group is 3.000 (7 publications cited 21 times). A review published by the Work Group in 2012 or 2013 was cited, on average, 3.000 times in 2014. 1
c) The most cited reviews from the Work Group contributing to the 2014 Impact Factor are: CD Number CD008570 Review Title Ergonomic design and training for preventing work-related musculoskeletal disorders of the upper limb and neck among office workers Times cited in 2014 CD006251 Interventions to prevent injuries in construction workers 4 CD006396 Interventions to prevent occupational noise-induced hearing loss 4 CD009209 Workplace pedometer interventions for increasing physical activity 4 7 CD010183 Occupational safety and health enforcement tools for preventing occupational diseases and injuries 2 The full list of Reviews contributing to the 2014 Impact Factor for the Work Group is provided in the accompanying Excel file. 2
d) The top ten most cited reviews published in the CDSR (all CRGs) contributing to the 2014 Impact Factor are: Review Title CRG Times Cited Interventions for preventing falls in older people living in the community Audit and feedback: effects on professional practice and healthcare outcomes Bone, Joint and Muscle Trauma Group Effective Practice and Organisation of Care Group 155 128 Statins for the primary prevention of cardiovascular disease Heart Group 116 Industry sponsorship and research outcome Methodology Review Group 84 Collaborative care for depression and anxiety problems Depression, Anxiety and Neurosis Group 62 Xpert MTB/RIF assay for pulmonary tuberculosis and rifampicin resistance in adults Transfusion thresholds and other strategies for guiding allogeneic red blood cell transfusion Cooling for newborns with hypoxic ischaemic encephalopathy Infectious Diseases Group 62 Injuries Group 59 Neonatal Group 58 Interventions to improve antibiotic prescribing practices for hospital inpatients Effective Practice and Organisation of Care Group 55 Pharmacological interventions for smoking cessation: an overview and network meta-analysis Tobacco Addiction Group 53 2. How the Work Group Impact Factor compares to that of other Cochrane Review Groups (CRGs): a) Figure 1, details the number of publications and citations contributing to the 2014 Impact Factor for each CRG as a percentage of the CDSR. Figure 2 shows the 2014 CRG Impact Factor for each CRG. It is important to remember that these figures have been calculated using hand-matched data from Web of Science and are not official Impact Factors. 3
Pregnancy and Childbirth Group Cystic Fibrosis and Genetic Disorders Group Acute Respiratory Infections Group Pain, Palliative and Supportive Care Group Airways Group Neonatal Group Wounds Group Menstrual Disorders and Subfertility Group Gynaecological, Neuro-oncology and Eyes and Vision Group Heart Group Neuromuscular Disease Group Peripheral Vascular Diseases Group Anaesthesia, Critical and Emergency Care Hepato-Biliary Group Stroke Group Oral Health Group Developmental, Psychosocial and Learning Tobacco Addiction Group Injuries Group Schizophrenia Group Bone, Joint and Muscle Trauma Group Depression, Anxiety and Neurosis Group Renal Group Infectious Diseases Group Incontinence Group Effective Practice and Organisation of Care Musculoskeletal Group Colorectal Cancer Group Fertility Regulation Group ENT Group Epilepsy Group HIV/AIDS Group Upper GI and Pancreatic Diseases Group Metabolic and Endocrine Disorders Group Dementia and Cognitive Improvement Haematological Malignancies Group Skin Group Consumers and Communication Group Breast Cancer Group Multiple Sclerosis and Rare Diseases of the Back Group Hypertension Group Childhood Cancer Group Drugs and Alcohol Group Inflammatory Bowel Disease and Urology Group Movement Disorders Group Lung Cancer Group Work Group Public Health Group Methodology Review Group Sexually Transmitted Infections Group Figure 1: % Publications (Dark blue) and % Citations (Light blue) of CDSR for each CRG (in order of percentage of publications) 12.0% 10.0% 8.0% % Publications % Citations 6.0% 4.0% 2.0% 0.0% 4
Methodology Review Group Tobacco Addiction Group Effective Practice and Organisation of Depression, Anxiety and Neurosis Group Bone, Joint and Muscle Trauma Group Dementia and Cognitive Improvement Consumers and Communication Group Inflammatory Bowel Disease and Breast Cancer Group Infectious Diseases Group Injuries Group Hypertension Group Heart Group Urology Group HIV/AIDS Group Pain, Palliative and Supportive Care Group Metabolic and Endocrine Disorders Group Multiple Sclerosis and Rare Diseases of Skin Group Menstrual Disorders and Subfertility Group Colorectal Cancer Group Neuromuscular Disease Group Anaesthesia, Critical and Emergency Care Acute Respiratory Infections Group Incontinence Group Stroke Group Airways Group Gynaecological, Neuro-oncology and Back Group Developmental, Psychosocial and Public Health Group Pregnancy and Childbirth Group Haematological Malignancies Group Renal Group Musculoskeletal Group Wounds Group Neonatal Group Sexually Transmitted Infections Group ENT Group Schizophrenia Group Lung Cancer Group Oral Health Group Upper GI and Pancreatic Diseases Group Movement Disorders Group Hepato-Biliary Group Eyes and Vision Group Childhood Cancer Group Work Group Fertility Regulation Group Drugs and Alcohol Group Peripheral Vascular Diseases Group Cystic Fibrosis and Genetic Disorders Epilepsy Group Figure 2: Impact Factor for each CRG (i.e. number of cites in 2014 to reviews published in 2012 2013, divided by the number of reviews published in 2012 2013) 26.000 24.000 22.000 20.000 18.000 16.000 14.000 12.000 10.000 8.000 6.000 4.000 2.000 0.000 CDSR 2014 Impact Factor = 6.032 5
3. How the Work Group Impact Factor compares with that of journals publishing in the same category: We have compared the CRG data with journals in the relevant Journal Citation Reports subject categories. The journal with the top Impact Factor in the category is not always directly comparable either because of the scope of the journal, or the number of reviews published. Please contact Gavin Stewart (gstewart@wiley.com) if you would like to compare your groups Impact Factor to journals other than those included in the table below. CRG Work Group Category (median IF) Public, Environmental & Occupational Health IF of journal ranked 10 th in the category Bulletin of the World Health Organization Highest ranked Journal by IF Lancet Global Health 3.000 1.651 5.089 10.042 When considering the usage data presented below, please be aware of the following: Since the release of the 2013 Impact Factor and Usage report, the system used for recording usage data can now more accurately identify usage linked to Web Crawlers and Robots. This usage activity has been removed from the usage data included in the 2014 report. As a consequence, 2014 individual article usage is lower than last year and will not be compared to 2013 usage data in this report. A proportion of full text downloads cannot be associated with an individual Cochrane review so the usage data included in this report is an underestimate of overall usage activity. Usage data included in this report is taken from the Wiley Online Library platform only and does not include usage recorded on Third Party platforms. 4. How the citation data compare to Wiley Online Library usage data: a) Each Review in CDSR, regardless of publication date, was accessed in full-text format on average 466 times during 2014 (8,664 articles accessed 4,036,302 times). Reviews published by the Work Group were accessed in full-text format on average 284 times during 2014 (75 articles accessed 21,274 times). 6
b) The top ten most accessed reviews from the Work Group are: CD Number Review Title Full Text Downloads CD002892 Preventing occupational stress in healthcare workers 3,015 CD009209 Workplace pedometer interventions for increasing physical activity 1,544 CD009573 CD008742 CD008570 Gloves, extra gloves or special types of gloves for preventing percutaneous exposure injuries in healthcare personnel Conservative interventions for treating work-related complaints of the arm, neck or shoulder in adults Ergonomic design and training for preventing work-related musculoskeletal disorders of the upper limb and neck among office workers 1,356 1,260 1,224 CD003541 Preventive staff-support interventions for health workers 1,188 CD006955 CD009740 CD009776 Workplace interventions to prevent work disability in workers on sick leave Devices for preventing percutaneous exposure injuries caused by needles in healthcare personnel Pharmacological interventions for sleepiness and sleep disturbances caused by shift work 857 801 770 CD006237 Interventions to improve return to work in depressed people 712 The access data for all Work Group Reviews during 2014 is provided in the accompanying Excel file. 5. How the usage of Work Group reviews compares to usage of reviews published by other Cochrane Review Groups: a) Figure 3, details the number of publications and full text downloads for each CRG as a percentage of the CDSR. Figure 4 shows the average number of full text downloads as accessed via Wiley Online Library during 2014 (regardless of publication date). 7
Pregnancy and Childbirth Group Neonatal Group Airways Group Musculoskeletal Group Pain, Palliative and Supportive Care Group Hepato-Biliary Group Schizophrenia Group Menstrual Disorders and Subfertility Anaesthesia Group Oral Health Group Renal Group Depression, Anxiety and Neurosis Group Stroke Group Heart Group Eyes and Vision Group Developmental, Psychosocial and Gynaecological Cancer Group Acute Respiratory Infections Group Bone, Joint and Muscle Trauma Group Metabolic and Endocrine Disorders Group Peripheral Vascular Diseases Group Colorectal Cancer Group Injuries Group Cystic Fibrosis and Genetic Disorders Dementia and Cognitive Improvement Effective Practice and Organisation of Wounds Group Infectious Diseases Group Neuromuscular Disease Group ENT Group HIV/AIDS Group Upper GI and Pancreatic Diseases Group Skin Group Epilepsy Group Inflammatory Bowel Disease and Drugs and Alcohol Group Haematological Malignancies Group Movement Disorders Group Incontinence Group Back Group Hypertension Group Fertility Regulation Group Consumers and Communication Group Tobacco Addiction Group Breast Cancer Group Urology Group Multiple Sclerosis and Rare Diseases of Childhood Cancer Group Public Health Group Lung Cancer Group Occupational Safety and Health Group Methodology Review Group Sexually Transmitted Infections Group Figure 3: % Publications (dark blue) and % Full downloads (light blue) of CDSR for each CRG (in order of percentage of publications) 12.0% 10.0% 8.0% % Publications % Full Text Downloads 6.0% 4.0% 2.0% 0.0% 8
Tobacco Addiction Group Effective Practice and Organisation of Care Wounds Group Consumers and Communication Group Acute Respiratory Infections Group Back Group Bone, Joint and Muscle Trauma Group Public Health Group Pregnancy and Childbirth Group Depression, Anxiety and Neurosis Group Metabolic and Endocrine Disorders Group Dementia and Cognitive Improvement Pain, Palliative and Supportive Care Group Stroke Group Oral Health Group Heart Group Incontinence Group Developmental, Psychosocial and Learning Breast Cancer Group Occupational Safety and Health Group Musculoskeletal Group Drugs and Alcohol Group Injuries Group Airways Group Neuromuscular Disease Group Anaesthesia Group Infectious Diseases Group Multiple Sclerosis and Rare Diseases of the Gynaecological Cancer Group Hypertension Group Peripheral Vascular Diseases Group Methodology Review Group Menstrual Disorders and Subfertility Group Skin Group Inflammatory Bowel Disease and Fertility Regulation Group Schizophrenia Group Neonatal Group Colorectal Cancer Group Cystic Fibrosis and Genetic Disorders Group Urology Group Renal Group Sexually Transmitted Infections Group Upper GI and Pancreatic Diseases Group Lung Cancer Group ENT Group Epilepsy Group Childhood Cancer Group HIV/AIDS Group Movement Disorders Group Eyes and Vision Group Hepato-Biliary Group Haematological Malignancies Group Figure 4: Average number of full-text downloads during 2014 by Cochrane Review Group 1,200 1,000 800 600 Average number of full text downloads per review in 2014 = 466 400 200 0 9
6. Alternative Metrics a) The highest Altmetric scores from Cochrane reviews published by the Work Group in 2014 (scores retrieved 27 th July 2015) are: Score Review Title B T N F 157 82 Pharmacological interventions for sleepiness and sleep disturbances caused by shift work Gloves, extra gloves or special types of gloves for preventing percutaneous exposure injuries in healthcare personnel 4 116 7 3 0 100 1 3 58 Interventions to improve return to work in depressed people 1 44 2 2 42 Preventing occupational stress in healthcare workers 0 53 0 8 40 Preventing occupational stress in healthcare workers 2 29 0 1 20 13 10 Non-pharmacological interventions for preventing job loss in workers with inflammatory arthritis Devices for preventing percutaneous exposure injuries caused by needles in healthcare personnel Interventions for preventing the spread of infestation in close contacts of people with scabies 1 16 0 0 0 10 0 0 0 8 0 0 B=Bloggers T=Tweeters N=News outlets F=Facebook walls Additional resources: A Frequently Asked Questions document (FAQ) is available from the Cochrane Library homepage. You can access this document here. For usage related to Cochrane Journal Club and Cochrane Podcasts, please contact Gavin Stewart (gstewart@wiley.com). For further details of Cochrane reviews in the press, please contact Jo Anthony (janthony@cochrane.org). If you have any further queries regarding the data presented in this report, please contact Gavin Stewart. 10