Table 1.

Demographic variables in Meperidine and control groups

	Meperidine (n=36)	Control (n=36)	p-value
Age (years)	45.3 ± 11.7	48.1 ± 8.5	0.19*
Sex (Male/Female)	15/21	16/20	0.54£
Weight (kg)	76.4 ±11.6	72 ±12.8	0.17*
Duration of surgery (min)	89.5 ± 15	84.5 ± 12	0.21*

^*t test; £ Chi-square