en ارتباط گروه خونی با بروز پره اکلامپسی در زنان نخست زا خون شناسی و بانک خون Hematology & Blood Banking پژوهشي Research <div style="text-align: justify;"><strong>Background and Aims:</strong> Preeclampsia is one of the causes of maternal mortality whose leading cause is still unknown. This study was conducted to investigate the relation between blood group and pre-eclampsia in primipara women.<br> <strong>Materials and Methods</strong>: This case-control study was performed on 100 pirmipara women in Gonabad city. The samples were assigned, by census, into two groups of case (with pre-eclampsia) and control (without pre-eclampsia). The data were analyzed using descriptive statistics and Chi-square through SPSS software Ver.16.<br> <strong>Results and Conclusions: </strong>The incidence of preeclampsia in the blood group of A, B, AB, and O were 36%, 34%, 22%, and 8%, respectively. Also, there was a significant difference between blood group O and blood group non-O to preeclampsia (p<0.001). The findings showed that the women with A and B blood types require special care with an emphasis on controlling and preventing the factors which cause hypertension/preeclampsia during pregnancy.</div> Blood group, Hypertension, Preeclampsia, Pregnancy 99 102 http://ijml.ssu.ac.ir/browse.php?a_code=A-10-183-1&slc_lang=en&sid=1 Mostafa Amiri No Department of Basic Sciences, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran. Mohammadreza Rahmani No Department of Clinical Psychology, Islamic Azad University, Gonabad Branch, Gonabad, Iran Hossein Solemani No Department of Management, Payam-e Noor University, Tehran, Iran Mohammad Ghorbani No Department of Basic Sciences, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran. Roghaieh Rahmani Bilandi Yes Department of Midwifery, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran.