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Table 1 Number of events and sample size according to potential efficacy rates in both arms

From: Lopinavir/Ritonavir versus Lamivudine peri-exposure prophylaxis to prevent HIV-1 transmission by breastfeeding: the PROMISE-PEP trial Protocol ANRS 12174

   HIV transmission in 3TC arm
   0.03 0.04 0.05
HIV transmission in LPV/r arm 0.01 1428 subjects 682 subjects 430 subjects
27 events 16 events 12 events
0.015 3190 subjects 1223 subjects 704 subjects
67 events 32 events 22 events
0.02   2204 subjects 1118 subjects
63 events 37 events
0.025    1800 subjects
64 events