title: O Blood Group as Risk Factor for Preeclampsia among Sudanese Women.
abstract: OBJECTIVE
  To investigate blood groups and the other possible risk factors for preeclampsia among Sudanese women.
  
  
  METHODS
  A case - control study was conducted at Saad Abualila Hospital, Khartoum, Sudan during the period of July 2013 through December 2014. The cases were women with preeclampsia and healthy pregnant women were the controls.
  
  
  RESULTS
  Two hundred eighty pregnant women were enrolled (140 in each arm of the study). Around one-quarter of all women (280) were primiparae (74.0, 26.4%), the majority were housewives (201, 71.7%). Seventy-nine (28.2%) were illiterate or had no informal education. Around half of the women (130, 46.4%) had O blood group. Binary logistic regression showed association between preeclampsia and lack of antenatal care (OR = 2.75, 95% CI = 1.172-6.494, P = 0.020) as well as O blood group (OR = 1.78, 95% CI = 1.088-2.934, P=0.022).
  
  
  CONCLUSIONS
  The current study showed that women with blood group O were at higher risk of preeclampsia.
authors.affiliation: Faculty of Medicine, El Imam El Mahdi University, Kosti, Sudan.
authors.forename: Abdelmageed
authors.initials: A
authors.lastname: Elmugabil
authors.affiliation: Faculty of Medicine, University of Khartoum, Khartoum, Sudan.
authors.forename: Duria A
authors.initials: DA
authors.lastname: Rayis
authors.affiliation: Faculty of Medicine, University of Khartoum, Khartoum, Sudan.
authors.forename: Mohamed A
authors.initials: MA
authors.lastname: Ahmed
authors.affiliation: Faculty of Medicine, University of Khartoum, Khartoum, Sudan.
authors.forename: Ishag
authors.initials: I
authors.lastname: Adam
authors.affiliation: Faculty of Medicine and Health Sciences, Alneelain University, Khartoum, Sudan.
authors.forename: Gasim I
authors.initials: GI
authors.lastname: Gasim
keywords: Preeclampsia; Sudan; blood groups; pregnancy