Table 4.
Adjusted* relative excess prevalence due to interactio (REPI)** for risky sexual behaviors among 4 women with alcohol misuse use from an urban sexually transmitted infections clinic
| Depressive Symptoms | Drug Use | Intimate partner violence | Unprotected Sex under the influence of Alcohol (95% CI) | Sex for Money or Drugs (95% CI) | Lifetime Sexual Partners (95% CI) |
|---|---|---|---|---|---|
| + | + | − | −1.1 (−4.2, 2.0) | −1.1 (−4.5, 2.2) | −0.7 (−2.9, 1.6) |
| + | − | + | −0.2 (−4.4, 4.0) | −0.3 (−4.7, 4.1) | −0.6 (−3.0, 1.9) |
| − | + | + | −0.2 (−4.5, 4.2) | −0.4 (−4.5, 3.8) | 1.3 (−2.0, 4.7) |
| + | + | + | −0.7 (−5.9, 4.5) | −1.6 (−6.1, 2.9) | 0.7 (−4.6, 5.9) |
Adjusted for age, education, and housing status
A positive REPI indicates greater than additive interaction between ≥2 factors (super-additivity) and a negative REPI indicates less than additive interaction between ≥2 factors (sub-additivity)
Depressive symptoms defined by score >10 on Patient Health Questionnaire (PHQ)-9 screening tool for depressive symptoms in the past 2 weeks
Drug used defined as any use of cocaine, amphetamines or stimulants, heroin, benzodiazepines and/or prescription opioids for non-medical purposes in the prior six months
Intimate partner violence defined as any physical or sexual abuse experienced in relationships in the prior year