Journal article

A comparison of participants with non-participants in a population-based epidemiologic study: the Melbourne Visual Impairment Project.

PM Livingston, SE Lee, CA McCarty, HR Taylor

Ophthalmic Epidemiol | Published : 1997


PURPOSE: Adequate participation in population-based studies in essential to ensure that the sample is representative of the population under investigation. Participants may differ from non-participants on important variables such as age, sex socioeconomic status, and general health factors. The Melbourne Visual Impairment Project (Melbourne VIP) is a population-based study designed to increase understanding of the prevalence and severity of common ocular disorders affecting people 40 years of age and over. AIM: The aim of this study was to determine the potential for any non-response bias by comparing data from participants and non-participants of the Melbourne VIP. METHODS: Specific demogra..

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