In secondary analyses , the proportion of women with detectable HIV-1 RNA in breast milk was significantly greater in the selenium group ( 37.8 % ) compared with placebo group ( 27.5 % ) among women who did not receive highly active antiretroviral therapy ( HAART ; RR , 1.37 ; 95 % CI , 1.03-1 .82 ; P = 0.03 ) .