Table 3.

Incidence of POST in both groups at different evaluation times

Evaluation time	Zinc group (n=44)	Placebo group (n=44)	P
0 min	1 (2.3%)	12 (27.3%)	0.001*
30 min	2 (4.5%)	15 (34.1%)	<0.001†
2 h	4 (9.1%)	16 (36.4%)	0.002*
4 h‡	3 (6.8%)	14 (31.8%)	0.003*
24 h	7 (15.9%)	15 (34.1%)	0.05 (NS)

NS – Nonsignificant. Data expressed as number of patients (%). P<0.01 (Bonferroni correction 0.05/5=0.01) was considered significant. *Significant. ^†Highly significant. ^‡Primary outcome