Table 4 Effect modification of the association between age and sharing of injection drug equipment
Age, yrs (n) | % Share | OR (95% CI) | Age, yrs (n) | % Share | OR (95% CI) | p-value for interaction term |
|---|---|---|---|---|---|---|
PTSD Symptoms Score ≤50 (n = 213) | PTSD Symptoms Score >50 (n = 270) | |||||
<25: n = 42 | 59.5% | 4.07 (1.89, 8.77) | <25: n = 59 | 45.5% | 1.29 (0.69, 2.39) | 0.09 |
≥25: n = 171 | 30.4% | ref | ≥25: n = 211 | 44.6% | ref | |
No History of Money for Sex (n = 332) | History of Money for Sex (n = 119) | |||||
<25: n = 74 | 55.4% | 2.67 (1.52, 4.66) | <25: n = 26 | 42.3% | 0.89 (0.34, 2.34) | 0.05 |
≥25: n = 258 | 34.5% | ref | ≥25: n = 93 | 48.4% | ref | |
Born in US (n = 427) | Born outside US (n = 57) | |||||
<25: n = 95 | 53.7% | 2.37 (1.46, 3.86) | <25: n = 51 | 16.7% | 0.15 (0.01, 1.99) | <0.01 |
≥25: n = 332 | 34.6% | ref | ≥25: n = 6 | 60.8% | ref | |