Measurement characteristics and correlates of HIV-related stigma among adults living with HIV: a cross-sectional study from coastal Kenya

Wanjala SW, Nyongesa MK, Mwangi P, Mutua AM, Luchters S, Newton CRJC, Abubakar A
BMJ Open. 2022;12

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OBJECTIVE: We studied the psychometric properties of the 12-item short version of the Berger HIV stigma scale and assessed the correlates of HIV-related stigma among adults living with HIV on the Kenyan coast. DESIGN: Cross-sectional study. SETTING: Comprehensive Care and Research Centre in the Kilifi County Hospital. PARTICIPANTS: Adults living with HIV on combination antiretroviral therapy were recruited and interviewed between February and April 2018 (n=450). MAIN OUTCOME MEASURES: HIV-related stigma. RESULTS: 450 participants with a median age of 43 years (IQR=36-50) took part in the study. Of these, 356 (79.1%) were female. Scale reliability and validity were high (alpha=0.80, test-retest reliability intraclass correlation coefficient=0.92). Using confirmatory factor analysis, we observed that the 12-item short version of the HIV stigma scale had a good fit for its hypothesised model (Comparative Fit Index=0.966, Tucker Lewis Index=0.955, root mean square error of approximation=0.044). Multigroup confirmatory factor analysis indicated measurement invariance across gender and age groups as DeltaCFI was