Kosovo Population and Housing Census 2011 Census: Household - Individual - Interview - Urban-rural representative GHDx Entry last modified on: Aug 5, 2021
Bangladesh Population and Housing Census 2011 - IPUMS Census: De facto - Household - Interview - Nationally representative GHDx Entry last modified on: Aug 5, 2021
Bangladesh Population and Housing Census 2011 Census: De jure - Household - Individual - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Sep 6, 2023
Austria Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
El Salvador Rapid Assessment of Avoidable Blindness 2011 Survey: Cross-sectional - Individual - Interview GHDx Entry last modified on: Jan 18, 2023
India - Kolar Rapid Assessment of Avoidable Blindness 2011 Survey GHDx Entry last modified on: Jan 18, 2023
Belgium Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
Portugal Population and Housing Census 2011 Census: De facto - Individual - Interview - Nationally representative GHDx Entry last modified on: Sep 26, 2024
Peru Rapid Assessment of Avoidable Blindness 2011-2012 Survey: Cross-sectional GHDx Entry last modified on: Jan 18, 2023
Germany Survey of Health, Aging and Retirement in Europe, Wave 4 2011-2012 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
Netherlands Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
India Population and Housing Census 2011 Census of India 2011 Census: Household - Individual - Interview - Nationally representative - Subnationally representative - Urban-rural representative GHDx Entry last modified on: Sep 6, 2023
Italy Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
France Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
Denmark Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
Switzerland Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
Hungary Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
Bangladesh - Kushtia Rapid Assessment of Avoidable Blindness Survey 2011 Survey GHDx Entry last modified on: Jan 18, 2023
Tanzania - Kigoma Rapid Assessment of Avoidable Blindness Survey 2011 Survey GHDx Entry last modified on: Jan 18, 2023
United States National Health and Nutrition Examination Survey 2011-2012 Survey: Cross-sectional - Exam - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Oct 18, 2024
South Korea National Health and Nutrition Examination Survey 2011 KNHANES V 2nd (2011) Survey: Cross-sectional - Exam - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Dec 14, 2023
Portugal Survey of Health, Aging and Retirement in Europe, Wave 4 2011 Survey: Household - Individual - Interview - Longitudinal GHDx Entry last modified on: Oct 10, 2024
Bangladesh Maternal Mortality and Health Care Survey 2016 BMMS 2016 Survey: Household - Individual - Interview - Subnationally representative - Urban-rural representative - Verbal autopsy GHDx Entry last modified on: Nov 4, 2022
Bangladesh - Natore Rapid Assessment of Avoidable Blindness Survey 2011 Survey GHDx Entry last modified on: Jan 18, 2023
Prevalence and Causes of Visual Impairment and Blindness in an Urban Population: The South Brazilian Bocaiuva Study Scientific literature GHDx Entry last modified on: May 30, 2020
Refractive error study in young subjects: results from a rural area in Paraguay Scientific literature GHDx Entry last modified on: May 30, 2020
Trinidad and Tobago Population and Housing Census 2011 Census: De facto - De jure - Household - Interview - Nationally representative - Subnationally representative GHDx Entry last modified on: Sep 6, 2023
Assessing the prevalence of sensory and motor impairments in childhood in Bangladesh using key informants Scientific literature GHDx Entry last modified on: Jul 20, 2021
Visual impairment and spectacle use in schoolchildren in rural and urban regions in Beijing Scientific literature GHDx Entry last modified on: Mar 3, 2019
Uganda - Western Ntungamo Rapid Assessment of Avoidable Blindness Survey 2011 Survey GHDx Entry last modified on: Jan 18, 2023
Prevalence of vision impairment and refractive error in school children in Ba Ria - Vung Tau province, Vietnam Scientific literature GHDx Entry last modified on: Jul 20, 2021
China - Beijing Eye Study 2011 Survey: Exam - Individual - Interview GHDx Entry last modified on: Aug 5, 2021
United States Medical Expenditure Panel Survey 2011 Survey: Cross-sectional - Health facility - Household - Individual - Interview - Longitudinal - Nationally representative - Subnationally representative GHDx Entry last modified on: Oct 6, 2022
China - Beijing Children Myopia Study 2011 Beijing Children Eye Study Survey: Exam - Individual GHDx Entry last modified on: Aug 5, 2021
India National Health Profile 2018 Report: Nationally representative - Subnationally representative GHDx Entry last modified on: Sep 17, 2024
Population Prevalence of Need for Spectacles and Spectacle Ownership Among Urban Migrant Children in Eastern China Scientific literature GHDx Entry last modified on: May 30, 2020
Prevalence and Associated Factors of Uncorrected Refractive Error in Older Adults in a Population-Based Study in France Scientific literature GHDx Entry last modified on: May 30, 2020
Nepal Population and Housing Census 2011 Census: De jure - Household - Individual - Interview - Nationally representative - Subnationally representative - Verbal autopsy GHDx Entry last modified on: Sep 6, 2023
United Kingdom General Lifestyle Survey 2011 - ONS Survey: Cross-sectional - Household - Individual - Interview - Urban-rural representative GHDx Entry last modified on: Aug 5, 2021
United Kingdom - Welsh Health Survey 2011 - Welsh Government Survey: Household - Individual - Interview GHDx Entry last modified on: Aug 5, 2021
Prevalence of refractive error and spectacle coverage in Zoba Ma'ekel Eritrea: a rapid assessment of refractive errror Scientific literature GHDx Entry last modified on: Mar 3, 2019
Prevalence of visual impairment in El Salvador: inequalities in educational level and occupational status Scientific literature GHDx Entry last modified on: Mar 3, 2019
Prevalence and causes of ocular morbidity in Mbeere District, Kenya. Results of a population-based survey Scientific literature GHDx Entry last modified on: May 30, 2020
United States National Health Interview Survey 2011 Survey: Cross-sectional - Household - Individual - Interview - Nationally representative GHDx Entry last modified on: Dec 14, 2023
An analysis of the incidence of glaucoma among those more than 50 year old medical group in Qinhuangdao city Scientific literature GHDx Entry last modified on: Mar 3, 2019
The Prevalence and Causes of Visaual Impairment and Blindness in a Rural Population in the North of Iran Scientific literature GHDx Entry last modified on: Oct 18, 2024
United Kingdom Health Survey for England 2011-2012 - UK Data Service HSE 2011 Survey: Household - Individual - Interview GHDx Entry last modified on: Dec 14, 2023