Condom use measured via a single, “yes/no” question about “current” use, was not predictive, while consistent condom use, derived from a series of questions enquiring about condom use by each partner type during a specified timeframe, showed a trend toward halving pregnancy risk in the adjusted analysis.
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Pregnancy incidence and correlates during the HVTN 503 Phambili HIV vaccine trial conducted among South African women.
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