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Table 1 Comparing socio-demographic characteristics between women with preeclampsia and controls in Saad Abualila Hospital, Khartoum, Sudan

From: Hepatitis B infection and preeclampsia among pregnant Sudanese women

Variable Women with preeclampsia (N = 200) Controls women (N = 200) P
Mean (SD) of    
Age, years 27.9 (5.2) 27.1 (5.5) 0.128
Parity 2.1 (1.8) 1.8 (1.7) 0.76
Frequency (%) of    
Rural residence 140 (70.0) 144 (72.0) 0.741
Education ≤ secondary level 147 (73.5) 150 (75.0) 0.819
O blood group 103 (51.5) 105 (52.5) 0.422