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. Author manuscript; available in PMC: 2011 Jun 30.
Published in final edited form as: N Engl J Med. 2010 Nov 23;363(27):2587–2599. doi: 10.1056/NEJMoa1011205

Figure 2. Kaplan–Meier Estimates of Time to HIV Infection (Modified Intention-to-Treat Population).

Figure 2

The cumulative probability of HIV acquisition is shown for the two study groups. The efficacy of preexposure prophylaxis with emtricitabine and tenofovir disoproxil fumarate (FTC–TDF) was 44%, as compared with placebo (P = 0.005). The inset graph shows a more detailed version of the overall graph up to a probability of 0.10.