United States National Health Interview Survey 1998 Survey: Cross-sectional - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Dec 14, 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
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
United States Behavioral Risk Factor Surveillance System 1998 Survey: Cross-sectional - Household - Individual - Interview - Subnationally representative GHDx Entry last modified on: Jul 13, 2022
China National Health Services Survey 1998 Survey: Household - Interview - Nationally representative GHDx Entry last modified on: Aug 5, 2021
Mongolia Statistical Yearbook 2004 ϺОНГОЛ УЛСЬІН СТАТИСТИКИЙН ЭϺXТГЭЛ Report: Subnationally representative GHDx Entry last modified on: Jan 7, 2022
Thailand Public Health Statistics 2012 Report: National vital registration - Subnationally representative GHDx Entry last modified on: Aug 26, 2021
United States Medical Expenditure Panel Survey 1998 Survey: Cross-sectional - Health facility - Household - Individual - Interview - Longitudinal - Nationally representative - Subnationally representative GHDx Entry last modified on: Jul 15, 2022
Ireland Survey of Lifestyle Attitudes and Nutrition 1998 SLAN 1998 Survey: Household - Nationally representative GHDx Entry last modified on: Dec 14, 2023
Evaluation of E-optotypes as a screening test and the prevalence and causes of visual loss in a rural population in SW Uganda Scientific literature GHDx Entry last modified on: Jul 20, 2021
Prevalence of infant Vitamin A deficiency and undernutrition in the Republic of Congo Scientific literature GHDx Entry last modified on: Oct 18, 2021
Japan Statistical Yearbook 2011 Report: Subnationally representative GHDx Entry last modified on: Aug 28, 2024
United Kingdom - Northern Ireland Continuous Household Survey 1998-1999 - UK Data Service Survey: Household GHDx Entry last modified on: Aug 5, 2021
Japan Statistical Yearbook 2012 Report: Subnationally representative GHDx Entry last modified on: Aug 28, 2024
Sensory impairment and cognitive functioning in oldest-old subjects: the Leiden 85+ Study Scientific literature GHDx Entry last modified on: Jul 20, 2021
Refractive Error Study in Children: results from La Florida, Chile Scientific literature GHDx Entry last modified on: Jun 29, 2020
Japan Statistical Yearbook 2014 Report: Subnationally representative GHDx Entry last modified on: Aug 28, 2024
Prevalence of visual impairment, blindness, and cataract surgery in the Hong Kong elderly Scientific literature GHDx Entry last modified on: Jul 20, 2021
Vitamin A Status of Children in Different Provinces of Papua New Guinea Survey GHDx Entry last modified on: Feb 26, 2021
Japan Statistical Yearbook 2016 Report: Subnationally representative GHDx Entry last modified on: Aug 28, 2024
Glaucoma in Zulus: a population-based cross-sectional survey in a rural district in South Africa Scientific literature GHDx Entry last modified on: Mar 3, 2019
Ocular diseases and blindness in elderly Thais Scientific literature GHDx Entry last modified on: Mar 3, 2019
Botswana Health Statistics Report 2002 Report: Discharge - Epi surveillance - Inpatient - National vital registration - Nationally representative - Outpatient - Subnationally representative GHDx Entry last modified on: Sep 26, 2024
Prevalence and causes of blindness and low vision in a rural setting in Pakistan Scientific literature GHDx Entry last modified on: Jul 20, 2021
Netherlands Permanent Quality of Life Survey 1998 Permanent onderzoek naar de leefsituatie (POLS) 1998 Survey: Individual - Interview - Nationally representative - Subnationally representative GHDx Entry last modified on: Dec 14, 2023
Prevalence and causes of functional low vision in school-age children: results from standardized population surveys in Asia, Africa, and Latin America Scientific literature GHDx Entry last modified on: Aug 22, 2024
United Kingdom - England Longitudinal Study of Ageing, Waves 0-7 1998-2015 - UK Data Service English Longitudinal Study of Ageing (ELSA) Survey: Exam - Individual - Interview - Longitudinal GHDx Entry last modified on: Aug 5, 2021
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
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
India - Uttar Pradesh and Bihar Survey of Living Conditions 1997-1998 Survey: Community - Household - Interview GHDx Entry last modified on: Aug 13, 2024
Nepal Micronutrient Status Survey 1997-1998 NMSS 1998 Survey: Exam - Individual - Interview - Nationally representative GHDx Entry last modified on: Aug 16, 2024
Palestine Population and Housing Census 1997 Census: De facto - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Mar 7, 2022
Palestine Population, Housing, and Establishment Census 1997 - IPUMS Census: De facto - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Mar 25, 2022
South Africa October Household Survey 1997 Survey: Household - Individual - Interview - Nationally representative - Urban-rural representative GHDx Entry last modified on: Aug 5, 2021
Iraq Population and Housing Census 1997 - IPUMS 1997 Population Census Census: De facto - De jure - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Aug 5, 2021
Madagascar Demographic and Health Survey 1997 Enquête Démographique et de Santé, Madagascar 1997 Survey: GPS coordinates (GIS) - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Oct 11, 2024
United Kingdom British Household Panel Survey 1997-1998 Survey: Household - Individual - Interview - Longitudinal - Nationally representative - Subnationally representative GHDx Entry last modified on: Sep 21, 2022
Zambia National Survey on Vitamin A Deficiency 1997 National Survey on Vitamin A Deficiency in Zambia: a random cluster study for children (0-5 years) and mothers attending national immunization days in August 1997 Survey GHDx Entry last modified on: Oct 18, 2021
Andorra National Health Survey 1997 Enquesta nacional de salut d'Andorra (ENSA) 1997 Survey: Nationally representative GHDx Entry last modified on: Oct 18, 2023
Cambodia Socio-Economic Survey 1997 Survey: Community - Cross-sectional - Household - Individual - Interview - Nationally representative - Urban-rural representative GHDx Entry last modified on: Jun 4, 2022
Prevalence of glaucoma in Thailand: a population based survey in Rom Klao District, Bangkok [Underlying data] Scientific literature GHDx Entry last modified on: May 30, 2020
Causes of incident visual impairment: the Blue Mountains Eye Study Scientific literature GHDx Entry last modified on: Mar 3, 2019
Peru National Report on Vitamin A Deficiency in Children Under 5 and Women of Childbearing Age 1997-2001 Informe nacional de deficiencia de vitamina A en niños menores de 05 años y mujeres en edad fertil 1997-2001 Report GHDx Entry last modified on: Jul 31, 2023
Botswana Health Statistics Report 2001 Report: Discharge - Epi surveillance - Inpatient - Outpatient - Subnationally representative GHDx Entry last modified on: Sep 2, 2021
United States National Health Interview Survey 1997 Survey: Cross-sectional - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Dec 14, 2023
A survey of blindness and cataract surgery in Doumen County, China Scientific literature GHDx Entry last modified on: Jul 20, 2021
Prevalence of blindness and low vision in Malaysian population: results from the National Eye Survey 1996 Scientific literature GHDx Entry last modified on: Jul 20, 2021
United States Medical Expenditure Panel Survey 1997 Survey: Cross-sectional - Health facility - Household - Individual - Interview - Longitudinal - Nationally representative - Subnationally representative GHDx Entry last modified on: Jul 15, 2022