Document Classification

Section Type: RESULTS

Text: The effect of treatment on PCR conversion varied according to geographic region : in Brazil, the odds ratio for PCR conversion was 3. 03 (95 % CI, 2. 12 to 4. 34) at 2 years and 1. 87 (95 % CI, 1. 33 to 2. 63) at 5 or more years ; in Colombia and El Salvador, the odds ratio was 1. 33 (95 % CI, 0. 90 to 1. 98) at 2 years and 0. 96 (95 % CI, 0. 63 to 1. 45) at 5 or more years ; and in Argentina and Bolivia, the odds ratio was 2. 63 (95 % CI, 1. 89 to 3. 66) at 2 years and 2. 79 (95 % CI, 1. 99 to 3. 92) at 5 or more years (P < 0. 001 for interaction).