Table 2. Multivariable model of the association of past pregnancy attempts, gender roles beliefs, STI symptoms and age with pregnancy incidence (n = 409; 54 pregnancies)¹.

	Adjusted Hazard Ratio (95% CI)**	P-value*
Past pregnancy attempt in 3 months prior to enrolment 2
No attempt to become pregnant	1	0.032*
Any attempt to become pregnant	1.9 (1.1–3.4)
Gender Roles Beliefs3
Progressive View	1	0.011*
Neutral View	1.8 (1.1–2.9)
Conservative View	3.3 (1.3–8.4)
Self-reported symptoms, diagnosis or treatment of sexually transmitted infections in the 3 months prior to enrolment
No	1	0.002*
Yes	2.5 (1.4–4.4)
Age
18–20 years	1	0.087
21–25 years	1.8 (1.0–3.4)
26–35 years	1.0 (0.4–2.5)

Footnotes: ¹Number of observations reduced to 409 and number of pregnancies 54 due to missing data on the trying to become pregnant variable. ²This was the female participant's perception. n = 29 unknown, not applicable and missing data. ³Test for linear trend; relationship belief coded as progressive view = 1, neutral = 2, conservative view = 3. * From likelihood ratio test. ** All variables have been adjusted for each other.