Table 3.

Multivariable analysis of factors associated with recent unprotected sex among female sex workers in Madagascar

Predictors	Self-reports		Detection of PSA		P-valuea
	aOR	95% CI	aOR	95% CI
Age in years
17–34	2.1b	1.1–4.0	1.2	0.7–2.0	0.11
≥35	Referent		Referent
Current hormonal contraception use
Yes	0.4b	0.2–0.9	0.6	0.3–1.1	0.54
No	Referent		Referent
Prevalent chlamydial infection
Yes	1.7	0.8–3.9	4.5b	2.0–10.1	0.07
No	Referent		Referent
Sipasc in previous 7 days
≥1	4.8b	2.9–8.1	1.6	1.0–2.5	<0.01
None	Referent		Referent

OR adjusted odds ratio, CI confidence interval, PSA prostate-specific antigen

Recent, unprotected sex measured by self-reports of unprotected sex within the previous 48 h or by detection of PSA in vaginal fluid

^aP-value for difference in the associations between the factor and the two outcomes for recent unprotected sex

^bP-value < 0.05

^cSipas are emotional, non-client partners