Vitamin and Mineral Nutrition Information System (VMNIS) WHO Global Database on Vitamin A Deficiency The Vitamin A Deficiency database includes data by country based on xerophthalmia and/or serum or plasma retinol concentration Last Updated: 2007-05-24 Level Date Location and sample descriptor Sex Prevalence of xerophthalmia (%) Age Sample Prevalence (%) (years) size Current Previous X1B X2 X3A X3B XS <0.35 <0.70 < 1.05 XN XN Serum / plasma retinol concentration (µmol/l) L 2000 Erzurum: Pre-SAC: Total B 0.50-5.99 232 19.0 4393 Pre-SAC by sex F 0.50-5.99 105 19.1 Pre-SAC by sex M 0.50-5.99 127 18.9 Mean SD Reference Notes General Line L 1998-2000 Gaziantep city: PW F 14.00-44.99 426 2.3 16.9 45.5 1.14 0.44 5127 L 1998 Izmir: Pre-SAC: Total B 0.50-4.99 160 0.6 15.6 1.02 0.33 1912 Pre-SAC by sex F 0.50-4.99 78 17.0 0.97 0.36 Pre-SAC by sex M 0.50-4.99 82 15.0 1.08 0.29 Pre-SAC by location: Urban B 0.50-4.99 112 17.0 1.02 0.32 Pre-SAC by location: Rural B 0.50-4.99 42 13.0 1.02 0.34 L 1995 P Ankara: Infants/Pre-SAC: Total B 0.75-1.5 80 1.3 30.0 0.82 0.24 107 Infants/Pre-SAC by sex F 0.75-1.5 36 25.0 0.84 0.25 Infants/Pre-SAC by sex M 0.75-1.5 44 34.1 0.81 0.23 S 1991 Istanbul and Kocaeli provinces: PW F 16.00-35.99 110 1.8 24.5 2.05 1.87 5822 R 1985-1986 Marmara, Central Anatolian, East Anatolian regions B 7.00-17.99 960 2.3 11.6 261 SAC/Adolescents by region: Marmara B 7.00-17.99 320 2.2 14.8 SAC/Adolescents by region: Central Anatolia B 7.00-17.99 320 1.6 7.1 SAC/Adolescents by region: East Anatolia B 7.00-17.99 320 3.2 12.8 SAC/Adolescentsby settlement: Villages B 7.00-17.99 300 1.36 0.67 SAC/Adolescents by settlement: Small towns B 7.00-17.99 150 1.34 0.62 SAC/Adolescents by settlement: Cities B 7.00-17.99 150 1.18 0.46 SAC by sex and age F 7.00-7.99 60 1.24 0.55 SAC by sex and age F 8.00-8.99 60 1.42 0.77 SAC by sex and age F 9.00-9.99 60 1.32 0.48 SAC by sex and age F 10.00-10.99 60 1.23 0.56 SAC by sex and age F 11.00-11.99 60 1.42 0.70 SAC by sex and age F 12.00-12.99 30 1.34 0.75 SAC by sex and age M 7.00-7.99 60 1.29 0.58 SAC by sex and age M 8.00-8.99 60 1.18 0.61 SAC by sex and age M 9.00-9.99 60 1.34 0.76 SAC by sex and age M 10.00-10.99 60 1.28 0.55 SAC by sex and age M 11.00-11.99 60 1.32 0.73 SAC by sex and age M 12.00-12.99 30 1.90 0.35 Adolescents by sex and age F 13.00-13.99 30 1.19 0.47
Vitamin and Mineral Nutrition Information System (VMNIS) WHO Global Database on Vitamin A Deficiency The Vitamin A Deficiency database includes data by country based on xerophthalmia and/or serum or plasma retinol concentration Last Updated: 2007-05-24 Prevalence of xerophthalmia (%) Serum / plasma retinol concentration (µmol/l) Level Date Location and sample descriptor Sex Age Sample Prevalence (%) (years) size Current Previous X1B X2 X3A X3B XS <0.35 <0.70 < 1.05 XN XN Mean SD Reference Notes General Line R 1985-1986 Adolescents by sex and age F 14.00-14.99 30 1.26 0.73 261 Adolescents by sex and age F 15.00-15.99 30 1.29 0.54 Adolescents by sex and age F 16.00-16.99 30 1.22 0.37 Adolescents by sex and age F 17.00-17.99 30 1.37 0.66 Adolescents by sex and age M 13.00-13.99 30 1.57 1.35 Adolescents by sex and age M 14.00-14.99 30 1.26 0.51 Adolescents by sex and age M 15.00-15.99 30 1.27 0.52 Adolescents by sex and age M 16.00-16.99 30 1.07 0.36 Adolescents by sex and age M 17.00-17.99 30 1.24 0.53
NOTES Reference No: 4393 General notes: Cluster sampling. Sample selected from rural and urban areas of Erzurum. Reference No: 5127 General notes: Facility based study (health centres). Sample comprised of PW (first, second and third trimester) atteding health centres in Gaziantep city, Gaziantep province. Reference No: 1912 General notes: Cluster sampling. Sample comprised pre-sac from 30 urban and 30 rural areas of Izmir. Serum retinol concentrations converted from µg/ml to µmol/l. Reference No: 107 General notes: Facility based study (hospital). Sample comprised healthy children brought to Dr. Sami Ulus Children's Hospital, Ankara for measles immunization. Serum retinol concentrations converted from µg/dl to µmol/l. Reference No: 5822 General notes: Longitudinal study of pregnant women atteding 10 different health centres in the provinces of Istanbul and Kocaeli, with random selection of women from each health centre. Women with histories of renal, thyroid, cardiovasuclar, diabetic and gross obstetric problems, and hypertension excluded. Only samples taken from subjects at the first time point (13-17 weeks of pregnancy) reported here. Additional time points of 28-32 weeks of pregnancy, and 13-17 weeks postpartum are reported in the publication. Reference No: 261 General notes: Sample selected from 5 cities, 5 small towns and 10 villages within the regions of Marmara, Central Anatolian and East Anatolian. Blood samples taken from 1 male and 1 female pupil randomly selected from each age group at 60 primary schools (7-11 years, n=600), 15 junior high schools (12-14 years, n=180) and 15 senior high schools (15-17 years, n=180).
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