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

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

	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)

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