Table 4 Logistic regression analysis of risk factors for HIV‐1 infection among FCSW in the Andean region, 1999–2002.

Risk factor	OR	(95% CI)	p Value	AOR	(95% CI)	p Value
Single marital status (others)	0.79	(0.52 to 1.22)	0.306	0.88	(0.59 to 1.32)	0.528
Sexual contacts per week (⩽two)	1.19	(0.77 to 1.91)	0.486	1.26	(0.79 to 1.99)	0.330
Previous STI history (no)	4.43	(1.64 to 11.28)	0.002	3.77	(1.59 to 8.94)	0.003
Time in CSW (<10 years)	1.94	(1.25 to 3.06)	0.002	2.19	(1.36 to 3.52)	0.001
Consistent condom use (sometimes or never)	1.31	(0.83 to 2.11)	0.279	1.24	(0.79 to 1.94)	0.353
Sexual contact with foreigners (no)	0.68	(0.42 to 1.07)	0.100	0.76	(0.49 to 1.19)	0.227
Use of any illegal drugs (no)	1.55	(0.17 to 6.63)	0.789	1.60	(0.37 to 6.99)	0.533
Use of marijuana (no)	0.81	(0.02 to 5.11)	0.998	0.92	(0.12 to 6.88)	0.933
Use of cocaine (no)	1.63	(0.04 to 10.97)	0.956	1.68	(0.22 to 12.94)	0.618
Use of alcohol (no)	1.12	(0.44 to 3.24)	0.998	1.21	(0.50 to 2.97)	0.671
Blood transfusion history (no)	1.57	(0.45 to 4.43)	0.516	1.54	(0.56 to 4.20)	0.402

HIV‐1, human immunodeficiency virus type 1; FCSW, female commercial sex workers; STI, sexually transmitted infections; CSW, commercial sex work; OR, odds ratio; AOR, odds ratio adjusted by age in years; 95% CI, 95% confidence interval; categories in parentheses describe the reference group for odds calculation.

Statistically significant variables are shown in bold.