Table 3

Multivariate analysis of the chlamydia risk determinants showing the significant variables

Variable	B	SE	Significance	Adjusted OR (95% CI)
SI with infected partner
Once^*				1^*
More than once	1.39	0.62	p=0.03	3.99 (1.18–13.50)
Age (in years)			p<0.01
<20	2.56	0.71	p<0.01	12.91 (3.18–52.27)
20–24				1^*
25+	0.41	0.51	p=0.42	1.50 (0.56–4.01)
Total number of sexual partners	0.03	0.01	p=0.04	1.03^† (1.00–1.05)

↵* Reference category.
↵† OR for every unit increase.
B, estimated coefficient; CI, confidence interval; OR, odds ratio; SE, standard error; SI, sexual intercourse.