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Table 2 Univariate logistic regression analysis, adjusted by baseline sex trade, of variables associated with engaging in sex trade after baseline

From: Sex work involvement among women with long-term opioid injection drug dependence who enter opioid agonist treatment

Variable (a)

OR

p-value

 

(95% CI)

 

Treatment Retention: (b)

0.41

0.001

Yes vs. No

(0.24, 0.68)

 

Social Relations: (c)

1.08

0.009

Every 0.2 unit increase

(1.02, 1.14)

 

Days injecting drugs: (c)

6.40

< 0.001

High (≥ 20) vs. Low (≤ 8)

(3.37,12.18)

 
 

3.26

0.002

Medium (9-19) vs. Low (≤ 8)

(1.53, 6.95)

 

Times injecting on a typical day: (d)

5.40

0.001

High (≥ 7) vs. Low (≤ 3)

(2.05, 14.22)

 

Days with heroin use:

5.12

< 0.001

Every 5 day increase

(2.76, 9.52)

 

Days with cocaine use:

5.92

< 0.001

Every 5 day increase

(2.77, 12.66)

 

EQ5D: (e)

0.99

0.019

Every 0.1 unit increase

(0.98, 1.00)

 

Physical health symptoms: (d)

1.05

0.02

Every 1 unit increase

(1.01, 1.09)

 

Psychological symptoms: (d)

1.09

< 0.001

Every 1 unit increase

(1.06, 1.13)

 
  1. OR: Odds ratios; CI: Confidence Interval
  2. (a) All variables refer to the prior month;
  3. (b) Retention to treatment: at least 20 out of prior 30 days;
  4. (c) EuropASI (European version of the Addiction Severity Index). Sub-scale scores range from 0 to 1; higher scores are indicative of more severe problems;
  5. (d) MAP (Maudsley Addiction Profile). Scores range from 0 to 40; higher scores are indicative of more symptoms;
  6. (e) EQ5D (Euroquol) Scores range from 0 to 1; higher scores are indicative of less severe problems; EQ5D index score with U.S. weights.