Assessment of vitamin A deficiency (VAD) among preschool children in Alexandria Governorate: Community-Based Study Scientific literature GHDx Entry last modified on: Oct 18, 2021
Eye lesions and onchocerciasis in a rural farm settlement in Delta state, Nigeria Scientific literature GHDx Entry last modified on: Apr 23, 2024
Blindness and eye diseases in Tibet: findings from a randomised, population based survey Scientific literature GHDx Entry last modified on: Nov 12, 2024
Cataract blindness and barriers to uptake of cataract surgery in a rural community of northern Nigeria Scientific literature GHDx Entry last modified on: Jul 20, 2021
Changes in blindness prevalence over 16 years in Malawi: reduced prevalence but increased numbers of blind Scientific literature GHDx Entry last modified on: Jul 7, 2020
Incidence of retinopathy of prematurity in very-low-birth-weight infants born at Kalafong Hospital Pretoria Scientific literature GHDx Entry last modified on: Mar 3, 2019
Malaysia - A Study of Malnutrition in Under Five Children in Malaysia Report GHDx Entry last modified on: Feb 26, 2021
Botswana Health Statistics Report 1999 Republic of Botswana Health Statistics Report 1999 Report: Discharge - Epi surveillance - Inpatient - Outpatient - Subnationally representative GHDx Entry last modified on: Sep 15, 2021
Somalia Multiple Indicator Cluster Survey 1999 Survey: Household - Individual - Interview - Urban-rural representative GHDx Entry last modified on: Sep 12, 2023
Magnitude of trachoma and barriers to uptake of lid surgery in a rural community of northern Nigeria Scientific literature GHDx Entry last modified on: Mar 3, 2019
The Sivaganga eye survey: I. Blindness and cataract surgery Scientific literature GHDx Entry last modified on: Mar 3, 2019
Netherlands Permanent Quality of Life Survey 1999 Permanent onderzoek naar de leefsituatie (POLS) 1999 Survey: Individual - Interview - Nationally representative - Subnationally representative GHDx Entry last modified on: Dec 14, 2023
Ghana Demographic and Health Survey 1998-1999 Survey: Cross-sectional - GPS coordinates (GIS) - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Aug 19, 2022
Côte d'Ivoire General Population and Housing Census 1998 Recensement general de la population et de l'habitation 1998 Census: Household - Individual - Interview GHDx Entry last modified on: Sep 26, 2024
India Demographic and Health Survey 1998-1999 India National Family Health Survey (NFHS-2) 1998-99 Survey: Household - Individual - Interview - Nationally representative - Subnationally representative - Verbal autopsy GHDx Entry last modified on: Oct 2, 2023
South Africa October Household Survey 1998 Survey: Household - Individual - Interview - Nationally representative - Urban-rural representative GHDx Entry last modified on: Sep 5, 2024
Mexico National Nutrition Survey 1998-1999 Encuesta Nacional de Nutrición (ENN) 1999 Survey: Nationally representative - Urban-rural representative GHDx Entry last modified on: Aug 5, 2021
United States - South Carolina Traumatic Brain Injury Follow-up Registry A Population-based Outcomes Study of Persons Hospitalized With Traumatic Brain Injury Survey: Discharge - Health facility - Individual - Interview - Longitudinal GHDx Entry last modified on: Aug 5, 2021
Central African Republic National Survey on Vitamin A Deficiency, Iron Deficiency and the Consumption of Iodized Salt 1998-1999 Enquête nationale sur l'avitaminose A, la carence en fer et la consommation du sel iode Survey: Cross-sectional - Household - Individual - Interview - Urban-rural representative GHDx Entry last modified on: Aug 23, 2023
Russia Longitudinal Monitoring Survey of HSE, Round VIII 1998-1999 Survey: Community - Household - Individual - Interview - Longitudinal - Nationally representative GHDx Entry last modified on: Dec 14, 2023
Norway Survey of Living Conditions Concerning Health, Care and Social Relations 1998 Samordnet levekarsundersokelse 1998 - tverrsnittsundersokelsen / Level of living 1998 - Cross sectional study - Health Survey: Cross-sectional - Household - Individual - Interview GHDx Entry last modified on: Jul 22, 2024
United Kingdom British Household Panel Survey 1998-1999 Survey: Household - Individual - Interview - Longitudinal - Nationally representative - Subnationally representative GHDx Entry last modified on: Sep 21, 2022
Profile of eye lesions and vision loss: a cross-sectional study in Lusambo, a forest-savanna area hyperendemic for onchocerciasis in the Democratic Republic of Congo Scientific literature GHDx Entry last modified on: Apr 23, 2024
Philippines - Cebu Longitudinal Health and Nutrition Survey 1998-2000 Cebu Longitudinal Health and Nutrition Survey 1998-1999 Survey: Community - Health facility - Household - Individual - Interview - Longitudinal - Urban-rural representative GHDx Entry last modified on: Aug 5, 2021
Burkina Faso Priority Survey 1998 Enquête Prioritaire sur les conditions de vie des ménages Survey: Cross-sectional - GPS coordinates (GIS) - Household - Individual - Interview - Nationally representative - Urban-rural representative GHDx Entry last modified on: Sep 6, 2023
United Kingdom - Welsh Health Survey 1998 - UK Data Service Survey: Household - Individual GHDx Entry last modified on: Aug 5, 2021
Mali General Population and Housing Census 1998 - IPUMS Troisieme recensement général de la population et de l'habitat Census: De facto - De jure - Household - Interview - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Sep 6, 2023
Bolivia Demographic and Health Survey 1998 Encuesta Nacional de Demografia y Salud 1998 Survey: Cross-sectional - Household - Individual - Interview - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Aug 23, 2023
Qatar Family Health Survey 1998 QFHS-98 Survey: Cross-sectional - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Aug 19, 2022
Pakistan Population and Housing Census 1998 Fifth Housing and Population Census Pakistan Census: De facto - De jure - Household - Interview - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Aug 5, 2024
India SRS Special Fertility and Mortality Survey 1998 Sample Registration System, Special Fertility and Mortality Survey, 1998 Survey: Cross-sectional - Household - Individual - Interview - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Aug 5, 2021
Turkey Statistical Yearbook 2011 Türkіye іstatіstіk Yilliği 2011 Report GHDx Entry last modified on: Nov 6, 2018
Correctable visual impairment in an older population: the Blue Mountains Eye Study Scientific literature GHDx Entry last modified on: Mar 3, 2019
Democratic Republic of the Congo - Significance of Vitamin A Deficiency in the Democratic Republic of the Congo Importance de la carence en vitamine A en Republique Democratique du Congo Report GHDx Entry last modified on: Oct 18, 2021
Botswana Health Statistics Report 1998 Report: Discharge - Epi surveillance - Inpatient - Outpatient - Subnationally representative GHDx Entry last modified on: Sep 2, 2021
Sub-clinincal vitamin A deficiency and some related risk factors among children and lactating mothers in the Red River Delta Province in 1998 Scientific literature GHDx Entry last modified on: Feb 26, 2021
United Kingdom - England Longitudinal Study of Ageing, Waves 0-5 1998-2011 - UK Data Service English Longitudinal Study of Ageing (ELSA) Survey: Exam - Individual - Interview - Longitudinal GHDx Entry last modified on: Jul 30, 2024
[Iron and vitamin A deficiencies and prevalence of anemia in boys and girls between 6 to 24 months of age in Chaco, Argentina] Scientific literature GHDx Entry last modified on: Aug 23, 2023
Blindness and low vision in Cape Verde Islands: results of a national eye survey Scientific literature GHDx Entry last modified on: Jul 20, 2021
Armenia Health and Nutritional Status of Children and Women 1998 Report GHDx Entry last modified on: Aug 23, 2023
[Prevalence of hypovitaminosis A among preschool children from northeastern Brazil, 1998] Scientific literature GHDx Entry last modified on: Oct 18, 2021
Japan Statistical Yearbook 2015 Report: Subnationally representative GHDx Entry last modified on: Aug 28, 2024
United Kingdom - England Longitudinal Study of Ageing, Waves 0-8 1998-2017 - UK Data Service English Longitudinal Study of Ageing (ELSA) Survey: Exam - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 28, 2022
Mongolia Statistical Yearbook 2004 ϺОНГОЛ УЛСЬІН СТАТИСТИКИЙН ЭϺXТГЭЛ Report: Subnationally representative GHDx Entry last modified on: Jan 7, 2022
Ghana - Proceedings of the Workshop on Dissemination of Findings of Vitamin A and Anaemia Prevalence Surveys - 1998 Report GHDx Entry last modified on: Aug 23, 2023
Philippines National Nutrition Survey 1998 Fifth National Nutrition Survey Survey: Household GHDx Entry last modified on: Aug 23, 2023
United States National Health Interview Survey 1998 Survey: Cross-sectional - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Dec 14, 2023
Thailand Public Health Statistics 2012 Report: National vital registration - Subnationally representative GHDx Entry last modified on: Aug 26, 2021
United States Behavioral Risk Factor Surveillance System 1998 Survey: Cross-sectional - Household - Individual - Interview - Subnationally representative GHDx Entry last modified on: Jul 13, 2022