ABSTRACT
Short intervals between pregnancies will be dangerous and will have some undesirable results like low birth weight, small for gestational age, still birth and neonatal death for the child and death danger, third trimester bleeding, premature rupture of membrane, endometritis and anemia for the mothers. This matter caused many countries specially Iran to accept proper intervening strategies between births. Therefore, present study has been done with the aim to determine related causes with pregnancy intervals in women at Boushehr city. This is a descriptive analytical study. Samples were women who had more than one child and referred to health centers of Boushehr city in 2005. Cluster sampling consisting of 311 samples was carried out. There were six clusters each of 50 samples selected from six centers. To collect data' a questionnaire including 26 demographic variable and questions like parent's educational level and accupation, marriage age of mother, age of mother at first pregnancy, number of children, etc was used. The interval of last two deliveries of 20[6.5%], 25 [8.0%], 41 [13.2%] and 225 [72.3%] women was less than one year, one to two years, two to three years and more than three years respectively. Among effective factors on pregnancy intervals, job, age at the first pregnancy and age at the time of last delivery of mother showed significant relation with their pregnancy intervals. Considering the risks of short interval pregnancies and their effective factors, suitable planning by authorities to provide educational program is suggested