Variables | Univariate analysis | Multivariable analysis | ||
---|---|---|---|---|
HR (95Â % CI) | P | AHR (95Â % CI) | P | |
Year of enrollment | ||||
 2006–2007 | 1.00 | - | 1.00 |  |
 2008–2009 | 1.12 (0.96–1.29) | 0.14 | 1.19 (1.03–1.39) | 0.02 |
 2010–2011 | 1.35 (1.06–1.72) | 0.02 | 1.35 (1.04–1.74) | 0.02 |
 2012–2013 | 1.66 (1.23–2.34) | 0.00 | 2.35 (1.73–3.20) | <0.0001 |
Race | ||||
 Han | 1.00 | - |  |  |
 Minority | 1.06 (0.92–1.22) | 0.48 |  |  |
Age at enrollment | ||||
  ≤ 25 years | 1.00 | - | 1.00 | - |
  > 25 years | 0.65 (0.57–0.74) | <0.0001 | 0.83 (0.71–0.96) | 0.01 |
Marital statusa | ||||
 Married/cohabiting | 1.00 | - | 1.00 | - |
 Unmarried/divorced/widowed | 1.23 (1.08–1.39) | 0.001 | 1.21 (1.06–1.38) | 0.007 |
Education | ||||
  ≤ 9 years | 1.00 | - |  |  |
  ≥ 10 years | 0.95 (0.79–1.15) | 0.58 |  |  |
Census registration | ||||
 Local | 1.00 | - | 1.00 | - |
 Other city | 1.52 (1.31–1.75) | <0.0001 | 1.32 (1.13–1.54) | 0.0004 |
Chargea | ||||
 Low | 1.00 | - |  |  |
 High | 1.15 (1.01–1.31) | 0.03 |  |  |
Duration of sex work at enrollment | ||||
  ≤ 3 year | 1.00 | - | 1.00 | - |
  > 3 years | 0.52 (0.45–0.60) | <0.0001 | 0.67 (0.57–0.79) | <0.0001 |
Number of clients per montha | ||||
  ≤ 30 | 1.00 | - |  |  |
  > 30 | 0.97 (0.78–1.19) | 0.76 |  |  |
Condom usea | ||||
 Never/Sometimes | 1.00 | - | 1.00 | - |
 Always | 1.56 (1.20–2.03) | 0.0009 | 1.51 (1.15–1.97) | 0.003 |
Drug usea | ||||
 No | 1.00 | - | 1.00 | - |
 Yes | 0.51 (0.42–0.61) | <0.0001 | 0.62 (0.51–0.76) | <0.0001 |
Alcohol usea | ||||
 No | 1.00 | - |  |  |
 Yes | 1.26 (1.10–1.45) | 0.001 |  |  |
HSV-2 statusa | ||||
 Negative | 1.00 | - | 1.00 | - |
 Positive | 0.74 (0.64–0.86) | <0.0001 | 0.87 (0.75–1.00) | 0.05 |
Syphilis statusa | ||||
 Negative | 1.00 | - |  |  |
 Positive | 0.78 (0.60–1.03) | 0.08 |  |  |