The overall prevalence of low PEP 1:2 ratio was 15/215 ( 7 % ) and it did not differ between the placebo ( 8/103 , 7.8 % ) and micronutrient groups ( 7/112 , 6.3 % ; HR 1.24 ; 95 % CI 0.47-3 .3 ; P = 0.79 ) .