TABLE 7.

Tukey’s honestly significant difference post hoc contrasts.

Contrast	Mean difference *	95% CI		p value
		LB	UB
Effusion
Present—absent	−6.40	−8.19	−4.60	<0.001
Treatment
Control—vitamin A	2.56	0.31	4.81	0.02
Control—zinc	3.28	1.03	5.53	<0.01
Vitamin A—zinc	0.72	−1.54	2.97	0.73

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