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Table 4 HIV incidence among initially HIV-negative participants, by VCT use at the earlier sero-survey round

From: The impact of voluntary counselling and testing services on sexual behaviour change and HIV incidence: observations from a cohort study in rural Tanzania

  N Person years Seroconversions Incidence per 100PY Crude rate ratio (95% CI) Adjusted rate ratio (95% CI)*
Attended Sero4 and Sero5     
No VCT 3160 10133.8 87 0.86 (0.70-1.06) 1 1
VCT 299 959.1 10 1.04 (0.56-1.94) 1.21 (0.63-2.34) 1.13 (0.58-2.22)
Attended Sero5 and Sero6     
No VCT 2343 4880.1 32 0.66 (0.46-0.93) 1 1
VCT 501 1031.0 5 0.48 (0.20-1.16) 0.74 (0.29-1.90) 0.69 (0.26-1.82)
  1. *Adjusted for age, sex and previous VCT use as at reported at the later sero-survey round.