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Table 3 Performance of the verbal autopsy tool using HIV serostatus as gold standard, by age group

From: Using verbal autopsy to assess the prevalence of HIV infection among deaths in the ART period in rural Uganda: a prospective cohort study, 2006-2008

 

Age group (years)

 

13-44

45-64

65+

All ages

Specificity (95% CI)

76.5% (62.5-87.2%)

90.0% (76.3-97.2%)

96.5% (91.3-99.0%)

90.2% (85.3-93.9%)

Positive predictive value (95% CI)

72.7% (57.2-85.0%)

77.8% (52.4-93.6%)

33.3% (4.3-77.7%)

70.6% (58.3-81.0%)

HIV-attributable mortality fraction (95% CI)

    

   this study

50.6% (39.6-61.5%)

30.5% (19.2-43.9%)

5.1% (1.9-10.7%)

25.8% (20.6-31.5%)

   cohort (based on ALPHA data2)

40.3%

24.4%

1.6%

17.0%

  1. 1Test (verbal autopsy) positive defined as positive by both assessors, or by 2 out of 3 assessors in case of nonagreement; test negative defined as negative or unknown by both assessors, or by 2 out of 3 assessors in case of nonagreement.
  2. 2Unpublished Analysing Longitudinal Population-based HIV cohorts in Africa (ALPHA) data
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Population Health Metrics

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