Document Classification

Section Type: RESULTS

Text: When common colds were analyzed in a post hoc subgroup analysis, the vitamin E group had a lower incidence of common cold (0. 67 vs 0. 81 per person-year ; RR, 0. 83 ; 95 % CI, 0. 68-1. 01 ; P =. 06 for all participants ; and 0. 66 vs 0. 83 per person-year ; RR, 0. 80 ; 95 % CI, 0. 64-0. 98 ; P =. 04 for completing participants) and fewer participants in the vitamin E group acquired 1 or more colds (40 % vs 48 % ; RR, 0. 83 ; 95 % CI, 0. 67-1. 00 ; P =. 05 for all participants ; and 46 % vs 57 % ; RR, 0. 80 ; 95 % CI, 0. 64-0. 96 ; P =. 02 for completing participants).