The median ( 95 % CI ) increase in weight-for-age z score at 6 mo was not significantly different between subjects who received micronutrients [ 0.75 ( 0.66 , 0.84 ) ] and those who did not receive micronutrients [ 0.76 ( 0.67 , 0.85 ) ] and between subjects who received zinc [ 0.76 ( 0.68 , 0.85 ) ] and those who did not receive zinc [ 0.75 ( 0.66 , 0.83 ) ] .