Table 1.

Comparison of the characteristics of the patients with and without rhabdomyolysis

	With rhabdomyolysis	Without rhabdomyolysis	Total	p-value
Age (mean±SD, yr)	35.45±4.82	39.78±6.31	37.69±5.87	0.03
Sex
Male	69 (90.8)	222 (79.9)	291(82.2)	0.02
Female	7 (9.2)	56 (20.1)	63 (17.8)
Type of drug
Heroin	4 (5.3)	0 (0.0)	4 (1.1)	0.02
Cocaine	2 (2.6)	3 (1.1)	5 (1.4)
Opium	24 (31.6)	93 (33.4)	117 (33.0)
Tramadol	21 (27.6)	106 (38.1)	127 (35.9)
Methadone	25 (32.9)	76 (27.3)	101 (28.5)

Values are presented as number (%).

SD, standard deviation.