Table 2.

Patterns of Drug Usage among IDUs

Variable		HIV n (%)		Chi squared	p value	Odds ratio	95% CI
		Yes	No
First drug use experience	Friends	62 (79.5%)	116 (83.5%)
	Family	1 (1.3%)	0 (0%)
	Sex worker	2 (2.6%)	0 (0%)
	Other	13 (16.7%)	23 (16.5%)
First drug used #	Opium	28 (31.5%)	32 (19.3%)
	Heroin	46 (51.7%)	90 (54.2%)
	Cough mixture	4 (4.5%)	6 (3.6%)
	Diazepam	6 (6.7%)	11 (6.6%)
	Marijuana	5 (5.6%)	27 (16.3%)
Present Drugs used #	Opium	9 (9.8%)	9 (5.2%)
	Heroin	71 (77.2%)	131 (76.2%)
	Cough mixture	4 (4.4%)	2 (1.2%)
	Diazepam	3 (3.3%)	15 (8.7%)
	Marijuana	5 (5.4%)	15 (8.7%)
Age first used drugs	<=21	45 (57.7%)	97 (69.8%)	3.23	0.05
	=>22	33 (42.3%)	42 (30.2%)
Drug use frequency per day	<=2	13 (16.7%)	26 (18.7%)
	2-4	62 (79.5%)	106 (76.3%)
	>=5	3 (3.9%)	7 (5.0%)
Drug use expenditure	<=3000	38 (55.9%)	56 (40.3%)	3.55	0.05
	3001-8000	20 (29.4%)	49 (35.3%)
	>=8001	10 (14.8%)	34 (24.5%)
Reason for drug use	Like	9 (11.5%)	24 (17.3%)	4.46	0.04
	Experiment	21 (26.9%)	49 (35.3%)
	Relaxation	3 (3.8%)	4 (2.9%)
	Peer press	35 (44.9%)	49 (35.3%)
	Upset	5 (6.4%)	11 (7.9%)
	Other	5 (6.4%)	2 (1.4%)

# Multiple response