Table 3.
Correlates of injection and non-injection drug use among street-based female sex workers in Iran, 2017
| Variable | Lifetime non-injection drug use | Past-month non-injection drug use | Lifetime injection drug use | Past-month injection drug use | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AORa | CI 95% | P | AOR | CI 95% | P | AOR | CI 95% | P | AOR | CI 95% | P | |
| Age at interview | ||||||||||||
| 18–24 | Ref | Ref | Ref | |||||||||
| 25–34 | 2.07 | 0.97, 4.39 | 0.058 | 0.88 | 0.41, 1.89 | 0.756 | 1.01 | 0.22, 4.57 | 0.993 | |||
| ≥ 35 | 1.94 | 0.85, 4.42 | 0.114 | 0.85 | 0.36, 2.00 | 0.716 | 1.13 | 0.23, 5.54 | 0.877 | |||
| Marital status | ||||||||||||
| Single (never married) | Ref | Ref | Ref | Ref | ||||||||
| Currently married | 1.90 | 0.89, 4.08 | 0.096 | 1.54 | 0.72, 3.30 | 0.264 | 0.11 | 0.01, 0.57 | 0.009 | 0.49 | 0.09, 2.48 | 0.393 |
| Divorced | 2.00 | 1.07, 3.74 | 0.028 | 3.26 | 1.72, 6.16 | < 0.001 | 0.61 | 0.23, 1.56 | 0.304 | 0.58 | 0.20, 1.67 | 0.320 |
| Temporarily married | 4.31 | 1.79, 10.40 | 0.001 | 3.54 | 1.55, 8.08 | 0.003 | 1.76 | 0.56, 5.47 | 0.326 | 1.94 | 0.56, 6.66 | 0.292 |
| Widowed | 1.17 | 0.46, 2.95 | 0.731 | 1.62 | 0.65, 4.01 | 0.259 | 1.30 | 0.38, 4.43 | 0.675 | 1.31 | 0.35, 4.88 | 0.689 |
| Income (per month) | ||||||||||||
| $230 USD or less | Ref | Ref | Ref | |||||||||
| $230 to $1100 USD | 0.65 | 0.28, 1.50 | 0.313 | 0.57 | 0.25, 1.28 | 0.172 | 0.72 | 0.22, 2.32 | 0.588 | |||
| $1100 to $2200 USD | 0.34 | 0.14, 0.80 | 0.014 | 0.60 | 0.26, 1.35 | 0.219 | 0.49 | 0.14, 1.62 | 0.242 | |||
| $2200 USD or more | 0.49 | 0.19, 1.25 | 0.137 | 0.67 | 0.27, 1.63 | 0.381 | 0.22 | 0.05, 0.91 | 0.037 | |||
| Housing status | ||||||||||||
| Living with family, friends, partner or spouse | Ref | Ref | Ref | Ref | ||||||||
| Living in their own house | 1.02 | 0.51, 2.04 | 0.945 | 0.87 | 0.45, 1.68 | 0.689 | 1.37 | 0.47, 3.95 | 0.561 | 2.22 | 0.70, 6.97 | 0.171 |
| Homeless | 1.41 | 0.79, 2.51 | 0.243 | 1.68 | 0.98, 2.86 | 0.056 | 2.05 | 0.94, 4.44 | 0.067 | 2.34 | 0.89, 6.09 | 0.081 |
| Age at first sex, y (≤ 18 vs. > 18) | 0.47 | 0.29, 0.77 | 0.003 | 0.45 | 0.26, 0.75 | 0.002 | 0.71 | 0.29, 1.71 | 0.450 | |||
| Age at sex work debut (≤ 18 vs. > 18) | 1.48 | 0.85, 2.56 | 0.166 | 1.29 | 0.57, 2.90 | 0.533 | ||||||
| Duration of sex work (< 5 vs. ≥ 5) | 1.25 | 0.69–2.25 | 0.453 | 1.36 | 0.85, 2.56 | 0.362 | 3.49 | 0.91, 13.27 | 0.067 | |||
| Number of clients per month | ||||||||||||
| ≤ 5 | Ref | Ref | Ref | Ref | ||||||||
| 6–15 | 1.23 | 0.69, 2.20 | 0.474 | 1.96 | 1.11, 3.42 | 0.019 | 1.48 | 0.62, 3.50 | 0.369 | 2.55 | 0.93, 6.98 | 0.068 |
| 16–30 | 1.98 | 0.99, 3.96 | 0.052 | 3.12 | 1.64, 5.92 | < 0.001 | 1.16 | 0.45, 2.99 | 0.744 | 1.88 | 0.60, 5.91 | 0.275 |
| > 30 | 2.76 | 1.29, 5.90 | 0.009 | 5.76 | 2.82, 11.72 | < 0.001 | 0.58 | 0.19, 1.70 | 0.324 | 0.23 | 0.02, 2.00 | 0.185 |
| Group sex (ever) (Yes vs. No) | 2.44 | 1.21, 4.92 | 0.013 | |||||||||
| Ever consumed alcohol (Yes vs. No) | 3.03 | 1.92, 6.79 | < 0.001 | 1.90 | 1.22, 2.97 | 0.005 | 2.74 | 1.20, 6.20 | 0.016 | 1.88 | 0.78, 4.50 | 0.157 |
| Ever incarcerated (Yes vs. No) | 7.65 | 3.89, 15.30 | < 0.001 | 3.05 | 1.85, 5.01 | < 0.001 | 5.06 | 2.48, 10.28 | < 0.001 | |||
aUsing multivariable logistic regression, variables with a P value less than 0.2 in the bivariable analysis were entered into multivariable analysis