TY - JOUR T1 - ASSESSMENT OF THE PREDISPOSING FACTORS OF PROLONGED PREGNANCY TT - عوامل مستعد کننده حاملگی طولانی مدت JF - IJN JO - IJN VL - 17 IS - 38 UR - http://ijn.iums.ac.ir/article-1-54-en.html Y1 - 2004 SP - 19 EP - 25 KW - Prolonged Pregnancy KW - Predisposing factors KW - Maternal factors KW - Fetal factors N2 - Lengthened pregnancy after the 41st week will create problems for mother, fetus and newborn. Assessment of the predisposing factors of prolonged pregnancy is a research priority. So, to determine the maternal and the fetal predisposing factors of this hardship, we conducted a case-control study in which record sheets were assessed and data were collected. 1800 women contributed in this study within which, 600 made the case group through census sampling method, and the rest were known as control group with normal pregnancy and were chosen through simple random sampling method. Findings indicated that as for maternal factors, there were statisticaly significant relationships between prolonged pregnancy, and the use of Aspirin and Salisilates and season of delivery (P M3 ER -