TABLE 2.

Changes in HAZs, WAZs, and WHZs over 18 mo of follow-up across the 4 treatment groups¹

	Zn+MVs (n = 602)	Zinc only (n = 596)	Multivitamins only (n = 598)	Placebo (n = 604)
Change in HAZ	−0.79 ± 0.05	−0.93 ± 0.05	−0.88 ± 0.05	−0.93 ± 0.05
P	0.058	0.956	0.478	Referent
Change in WAZ	−0.36 ± 0.04	−0.61 ± 0.04	−0.52 ± 0.04	−0.50 ± 0.04
P	0.020	0.063	0.792	Referent
Change in WHZ	−0.31 ± 0.07	−0.57 ± 0.07	−0.42 ± 0.07	−0.35 ± 0.07
P	0.655	0.021	0.473	Referent

¹All values are mean ± SEs. The analysis was derived from a mixed-effects model with restricted cubic splines. P values are for comparisons of the mean change in z score compared with the mean change in z score in the placebo group. HAZ, height-for-age z score; WAZ, weight-for-age z score; WHZ, weight-for-height z score; Zn+MV, zinc and multivitamin.