Table 2.

Factors associated with pre-eclampsia in Medani Maternity hospital, Central Sudan using univariate or multivariate analysis

	Univariate analysis			Multivariate analysis
The variable	OR	95% CI	P	OR	95% CI	P
Age	1.0	0.9-1.0	0.5	1.0	0.9-1.1	0.1
Primigravidae	2.5	1.5-4.4	0.001	0.9	0.7-1.0	0.2
Family history of hypertension	6.7	3.7-12.2	0.001	5.7	2.9-11.5	0.001
History of malaria	3.7	1.8-7.7	0.001	2.0	0.9-4.4	0.07
Educational level < secondary	0.9	0.9-1.0	0.3	1.0	0.5-2.0	0.9
Lack of antenatal care	2.0	1.0-3.6	0.02	2.4	0.9-6.1	0.06
Body mass index	0.9	0.8-1.0	0.3	1.0	0.9-1.1	0.9
Blood group O vs.non group O	1.4	0.9-2.3	0.08	1.1	0.6-2.0	0.5
Placental malaria	1.9	1.0-3.7	0.05	2.3	1.0-5.2	0.04