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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.