TABLE 8.

Tukey’s honestly significant difference post hoc contrasts.

Contrast	Mean difference *	95% CI		p value
		LB	UB
Pneumonia grade
Grade 3–grade 4	−5.19	−6.79	−3.58	<0.001
Treatment
Control—vitamin A	2.56	0.22	4.90	0.03
Control—zinc	3.28	0.94	5.62	<0.01
Vitamin A—zinc	0.72	−1.62	3.06	0.74

*Based on marginal means. CI, confidence interval; LB, lower bound; UB, upper bound.