Newborns of women randomized to vitamin C ( n = 76 ) , compared with those randomized to placebo ( n = 83 ) , had improved pulmonary function as measured by TPTEF : TE ( 0.383 vs 0.345 [ adjusted 95 % CI for difference , 0.011-0 .062 ] ; P = .006 ) and Crs/kg ( 1.32 vs 1.20 mL/cm H2O/kg [ 95 % CI , 0.02-0 .20 ] ; P = .01 ) .