Table 2.

Factors associated with ever drug use in univariate (crude OR) and multiple (adjusted OR) logistic regression analysis

Characteristic	Crude OR	95% CI	Adjusted OR	95% CI
Current age (years)
18–19	Reference		Reference
20–24	1.75	0.80–3.84	1.56	0.57–4.27
25+	2.48*	1.22–5.02	1.20	0.43–3.38
Marital status
Married	2.45**	1.27–4.74	2.33*	1.01–5.40
Divorced/separated	2.59*	1.24–5.42	2.55	0.88–5.80
Widowed	3.53**	1.50–8.28	2.58	0.84–7.95
Unmarried	Reference		Reference
Educational status
Illiterate	1.39	0.533–3.62
Up to 10th standard	1.18	0.45–3.09
> 10th standard	Reference
Consumed alcohol (past month)
Everyday	5.27**	2.72–10.20	5.15**	2.27–11.66
At least once a week	2.46**	1.38–4.39	3.01**	1.45–6.23
Never/< once a week	Reference		Reference
Have sexual partners who have used or shared injecting drugs (ever) *
No	Reference		Reference
Yes	5.12**	3.13–8.45	4.91**	2.69–8.92
Place of sex work
Hotel/brothel	2.09**	1.20–3.62	1.20	0.59–2.42
Public place	1.20	0.41–3.50	1.40	0.34–5.76
Home	Reference		Reference
Age at first sex
<=15 years	1.19	0.74–1.90
> 16 years	Reference
Duration of sex work
< 2 years	Reference		Reference
2–4 years	1.33	0.62–2.88	0.73	0.28–1.90
5–9 years	2.53*	1.15–5.57	1.42	0.48–4.18
> = 10 years	2.34*			0.96–5.66	1.92	0.55–6.66
Client volume per week
0–4	Reference		Reference
5–9	2.28**	1.32–3.95	2.59**	1.30-5.13
> = 10	2.66**	1.40-5.08	2.87**	1.30–6.34
Condom use with occasional clients
Sometimes/never	Reference		Reference
Most of the time	1.93*	1.06–3.54	1.25	0.49–3.13
Every time	2.54**	1.40–4.61	1.98	0.69–5.68
Condom use with regular clients
Sometimes/never	Reference		Reference
Most of the time	1.66	0.87–3.15	1.69	0.62–4.61
Every time	2.22*	1.06–4.64	0.89	0.24–3.25
Condom use with main regular partners
Sometimes/never	Reference
Most of the time	1.39	0.42–4.61
Every time	1.16	0.24–5.77
Ever heard of HIV
No	Reference		Reference
Yes	2.88*	1.11–7.48	2.74	0.91–8.22
CT
Negative	Reference
Positive	1.64	0.96–2.79
NG
Negative	Reference
Positive	1.94	0.70–5.41
Active syphilis
No	Reference		Reference
Yes	2.98**	1.67-5.33	1.79	0.85–3.79

'^*' refers p-value < 0.05 and '^'**' for p-value < 0.01.