Hospital mortality and 6-month mortality were also not significantly different ( hospital mortality : 28.3 % [ 95 % CI , 22.6 % -34.5 % ] for vitamin D3 vs 35.3 % [ 95 % CI , 29.2 % -41.7 % ] for placebo ; hazard ratio [ HR ] , 0.81 [ 95 % CI , 0.58-1 .11 ] ; P = .18 ; 6-month mortality : 35.0 % [ 95 % CI , 29.0 % -41.5 % ] for vitamin D3 vs 42.9 % [ 95 % CI , 36.5 % -49.4 % ] for placebo ; HR , 0.78 [ 95 % CI , 0.58-1 .04 ] ; P = .09 ) .