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Table 1 HIV incidence rates at different time points between delivery and 72 months after childbirth.

From: The incidence of HIV among women recruited during late pregnancy and followed up for six years after childbirth in Zimbabwe

  No. of participants   
Observational period Tested seroconverted Total person years at risk (wyar) Incidence rate per 100 wyar (95% CI)
Enrolment to 6 weeks pp 436 4 90.8 4.4 (2.6-6.7)
>6 wks to 4 mths pp 352 3 73.3 4.1 (2.2-6.6)
>4 mths to 9 mths pp 321 10 133.8 7.5 (4.8-10.9)
>9 mths to 72 mths pp 269 22 1390.0 1.6 (0.4-3.7)
Overall   39 1687.9 2.3 (1.1-4.1)
  1. wyar = woman-years-at-risk, pp = postpartum.