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The effect of participant nonresponse on HIV prevalence estimates in a population-based survey in two informal settlements in Nairobi city by Abdhalah K Ziraba; Nyovani J Madise; Mwau Matilu; Eliya Zulu; John Kebaso; Samoel Khamadi; Vincent Okoth; Alex C Ezeh is a Medicine article available to read on EtoBox.
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Background: Participant nonresponse in an HIV serosurvey can affect estimates of HIV prevalence. Nonresponse can arise from a participant's refusal to provide a blood sample or the failure to trace a sampled individual. In a serosurvey conducted by the African Population and Health Research Center and Kenya Medical Research Centre in the slums of Nairobi, 43% of sampled individuals did not provide a blood sample. This paper describes selective participation in the serosurvey and estimates bias in HIV prevalence figures. Methods: The paper uses data derived from an HIV serosurvey nested in an on-going demographic surveillance system. Nonresponse was assessed using logistic regression and multiple imputation methods to impute missing data for HIV status using a set of common variables available for all sampled participants. Results: Age, residence, high mobility, wealth, and ethnicity were independent predictors of a sampled individual not being contacted. Individuals aged 30-34 years, females, individuals from the Kikuyu and Kamba ethnicity, married participants, and residents of Viwandani were all less likely to accept HIV testing when contacted. Although men were less likely to be
Who reads The effect of participant nonresponse on HIV prevalence estimates in a population-based survey in two informal settlements in Nairobi city?
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- Author
- Abdhalah K Ziraba; Nyovani J Madise; Mwau Matilu; Eliya Zulu; John Kebaso; Samoel Khamadi; Vincent Okoth; Alex C Ezeh
- Publisher
- BioMed Central; Springer (Biomed Central Ltd.); London: BioMed Central, [2003]-; Springer Science and Business Media LLC (ISSN 1478-7954)
- Published
- 2010
- Language
- EN
- Field
- Medicine (Health Sciences)