Facing HIV infection and unintended pregnancy: Rakai, Uganda, 2001–2013

BMC Women's Health

Table 2 Predictors of Unintended Pregnancy Using Poisson Regression, Rakai Community Cohort Study, Uganda 2001–2013

	Poisson Regression (Unadjusted)				Backwards Selection Multiple Poisson Regression (Adjusted)
	Poisson Regression (Unadjusted)				n = 2819
RISK FACTORS	Unintended v. Intended				Unintended v. Intended
RISK FACTORS	Risk Ratio	95% Lower	95% Upper	P-value*	Risk Ratio	95% Lower	95% Upper	P-value*
Sample Characteristics
Pre or Post ART
pre 2004	ref	ref	ref	ref	ref	ref	ref	ref
post 2004	0.78	0.69	0.87	<.001	0.75	0.66	0.84	<.001
Individual Characteristics
Age
15–19	1.14	0.93	1.41	0.207	1.37	1.09	1.73	0.007
20–24	0.92	0.79	1.07	0.265	0.99	0.85	1.16	0.948
25–29	ref	ref	ref	ref	ref	ref	ref	ref
30–34	1.13	0.97	1.33	0.121	1.07	0.91	1.26	0.414
35–39	1.34	1.10	1.63	0.004	1.23	1.00	1.51	0.048
40–49	1.79	1.34	2.38	<.001	1.54	1.14	2.07	0.005
Education
No school	1.15	0.91	1.44	0.234	1.10	0.87	1.40	0.411
Primary school	ref	ref	ref	ref	ref	ref	ref	ref
Secondary schol or more	0.70	0.61	0.79	<.001	0.80	0.70	0.92	0.002
SES
low	ref	ref	ref	ref	ref	ref	ref	ref
middle	0.92	0.8	1.06	0.261	0.99	0.86	1.14	0.899
high	0.78	0.68	0.89	<.001	0.91	0.78	1.05	0.177
HIV Status
Positive	1.14	0.96	1.35	0.145	1.14	0.96	1.35	0.149
Parity
0	0.63	0.47	0.83	<.001	0.61	0.45	0.81	<.001
1 or 2	ref	ref	ref	ref	ref	ref	ref	ref
3 or 4	1.22	1.05	1.42	0.009	1.25	1.06	1.47	0.009
5+	1.26	1.11	1.44	<.001	1.29	1.11	1.51	<.001
Marriage Status
never married	0.95	0.78	1.16	0.596
married	ref	ref	ref	ref
separated or widowed	1.18	0.97	1.43	0.094
Number of Sex Partners Ever
0–1	1.11	0.97	1.26	0.124
2 or 3	ref	ref	ref	ref
4+	1.11	0.96	1.28	0.165

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