Table 3.

Risk factors for chlamydia and/or gonorrhoea infection^*

	Univariate analysis		Multivariate analysis†
Predictors	OR	95% CI	Adjusted OR	Adjusted 95% CI
Sociodemographic factors
Age (⩽30 vs. >30), (n=545)	4.0	2.1–7.5	3.3	1.7–6.7
Length of time in a relationship (⩽4 yrs vs. >4 yrs), (n=530)	2.3	1.5–3.8	1.2	0.67–2.1
Sexual history factors
Number of lifetime sex partners (> 1 vs. 1)	2.1	1.3–3.4	1.9	1.1–3.1
Partner works in city (n=526)	2.5	1.3–4.8	2.0	0.84–4.9
Economic factors
Difficulty in transport to clinic (yes vs. no)	2.3	1.4–3.6	2.5	1.5–4.3
Farming as occupation	0.57	0.35–0.90	0.79	0.43–1.5
Market vendor as occupation	0.61	0.37–1.0	0.54	0.30–0.97
Domestic servant as occupation	6.0	2.8–12.7	4.1	1.6–10.4
Partner’s occupation, farming	0.52	0.30–0.91	1.1	0.49–2.5
Partner’s occupation, construction worker (n=529)	2.3	1.1–5.0	2.2	0.94–5.2

^*n=549 unless otherwise indicated. Fewer than 549 observations indicate missing data in column on the left indicates missing data for the univariate analysis

^†n=521 for multivariate model due to missing data