Table 3. Mediation of Association Between Substance Use Disorder and Sexually Transmitted Disease Diagnosis by Each Partner Characteristic.

	Adjusted* Odds Between SUD and STD Diagnosis
Model Adjusted For	OR	95% CI
Demographics and condom use only	1.7	1.0–2.7
Partner characteristic composite	1.5	0.9–2.5
Each partner characteristic separately
Partner had an STD in past year	1.7	0.9–3.0
≥5-yr age difference between partners	1.6	1.0–2.8
Partner previously in jail	1.3	0.8–2.2
Partner had other partners in past year	1.8	1.0–3.1
Perceived partner alcohol problem	1.6	1.0–2.7
Perceived partner marijuana problem	1.7	1.0–2.8

^*Adjusted for race, sex, medical insurance, age, and condom use last sex.

Each partner characteristic was entered into the model of SUD and STD separately.

OR indicates odds ratio; CI, confidence interval; STD, sexually transmitted disease; SUD, substance use disorder.