Table 2.

Comparison Between Zinc and Placebo Groups Regarding Baseline Serum Zinc level (µg/dL).

	Zinc group (n = 70)		Placebo group (n = 70)		Total (n = 140)		P value
	Mean ± SD		Mean ± SD		Mean ± SD
Baseline Serum Zinc level	52.58 ± 24.84		49.56 ± 21.85		51.08 ± 23.37		.445 #
	No.	%	No.	%	No.	%
Normal baseline serum zinc level	23	32.9	19	27.1	42	30	.461 $
Low baseline serum zinc level	47	67.1	51	72.9	98	70

^#Independent t test was used.

^$Chi square test was used.