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Explore findings from the 2006 Washington Group on Disability Statistics meeting in Kampala, focusing on vision-related questions, sensitivity, specificity, and correlations with daily activities. Discover trends by age and country, with details on thresholds and endorsement rates.
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ESCAP/WHO Field Results on Vision Wei Liu liuw@un.org Session 3, Sixth Meeting of the Washington Group on Disability Statistics, Kampala, Oct 10-13, 2006
Questions • W1 Do you have difficulty seeing, even if wearing glasses? • B1.6 How much difficulty did you have in seeing and recognizing a person you know across the road? (take into account eye glasses, if you wear them) • B1.7 How much difficulty did you have in seeing and recognizing an object at arm’s length or in reading? (take into account eye glasses, if you wear them)
Correlation between Vision Questions and Life ActivitiesQuestions
Results Summary • World Health Survey Questions on vision that included thresholds were more sensitive • In general, WG Q showed good specificity but low sensitivity • WG Q indicated higher sensitivity and lower specificity among older age groups
Results Summary (cont.) • Philippines has lowest sensitivity and Indonesia has lowest specificity • W1 is significantly and moderately correlated with B1.6 and B1.7.