Table1. Demographic characteristics, epidemiological and other related data in studied drug abusers.

Variables		H-group (n=115) N (%)	NH-group (n=218) N (%)	P-value
Mean age (years)		24.8 ± 6.2	26.3 ± 5.7	0.02
Gender	Male	111(96.5)	212(97.2)	0.74
	Female	4(3.5)	6(2.8)
Residency	Urban	102(88.7)	198(90.8)	0.33
	Rural	13(11.3)	20(9.2)
Imprisonment		81(70.4)	136(62.4)	0.14
Cigarette smoker Mean pack/year		115(100) 17.7 ± 10.4	215(98.6) 11.4 ± 9.6	0.55 <0.0001
History of surgery		15(13.1)	10(4.6)	0.007
Blood transfusion		20(17.4)	11(5.1)	0.0005
Sharing in IV equipment		98(85.2)	98(44.9)	<0.0001
HIV co-infection		41(35.6)	19(8.7)	<0.0001