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. 2014 Dec 26;9(12):e115014. doi: 10.1371/journal.pone.0115014

Figure 1. Flowchart of the cohort study.

Figure 1

Study visits were scheduled at enrollment, 28 weeks of gestational age (visit 2), and delivery (visit 3). Women enrolled at gestational age <28 weeks (n = 855) had three scheduled visits. Women who enrolled between 28 and 32 weeks of gestational age (n = 360) participated in only two of the three study visits (enrollment visit and delivery). Fifteen women enrolled at a gestational age between 0–32 weeks, but exact age was not known. SC seroconversion; HIV – HIV negative; LFU lost to follow-up.