Prevalence and risk factors associated with severe pre-eclampsia among postpartum women in Zanzibar: a cross-sectional study

Table 3 Multiple Logistic Regression for factors associated with severe pre-eclampsia (N = 400)

Variable			95% C. I				95% C. I
Variable	OR	P- value	Lower	Upper	AOR	P –value	Lower	Upper
Age
15–20	4.16	0.01	1.44	12.06	3.84	0.04	1.04	14.21
21–35	1.96	0.02	1.12	3.43	1.92	0.11	0.86	4.31
36 and above	(Ref)
Residence
Urban	(Ref)
Rural	1.70	0.02	1.08	2.69	2.65	0.00	1.37	5.11
Education level
No formal	1.3	0.83	0.12	14.21	1.76	0.70	0.10	30.45
Primary	0.46	0.49	0.53	4.05	0.40	0.45	0.04	4.31
Secondary	0.64		0.68	5.19	0.45	0.51	0.04	4.87
Higher	(Ref)
Pregnancy from new partner/husband
No	(Ref)
Yes	3.409	< 0.00	2.13	5.47	7.56	< 0.00	3.88	14.72
Diabetes prior conception
No	(Ref)
Yes	14.7	0.02	1.69	127.34	55.83	0.00	5.06	615.87
High blood pressure in previous pregnancy
No	(Ref)
Yes	14.97	< 0.00	4.21	53.27	19.38	< 0.00	4.62	81.36
Multifetal gestation
No	(Ref)
Yes	3.86	0.01	1.40	10.64	7.62	0.01	2.01	28.84
High blood pressure prior conception
No	(Ref)
Yes	21	0.01	2.55	172.82	10.45	0.06	0.90	121.57
Family member with high blood pressure
No	(Ref)
Yes	6.13	< 0.00	3.56	10.54	6.45	< 0.00	3.22	12.92
Household member smoking
No	(Ref)
Yes	8.66	< 0.00	3.28	22.72	10.41	< 0.00	3.03	35.76
Paternal age (years)
< 45	(Ref)
≥ 45	2.23	0.01	1.27	3.89	2.40	0.04	1.04	5.52

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