شيوع حاملگي با فاصله كوتاه و رابطه آن با وزن و قد هنگام تولد

Prevalence of Short - interval pregnancy and its association with birth height and weight

Backgrand: With respect to the prevalence of short - interval pregnany in our country and also lack of information data in kashan, the present study was conducted in kashan to detenninethe prevalence of short - interval pregnancy and also its association with birth height and weight. Materials and Methods: A descriotiue study was carried out to determine the prevalence of short - interval pregnancy whereas a historical cohort study was performed to determine its association with birth height and weight. Our case group consisted of two groups: iso mothers with interval of less than is months and 10 mothers with interval of less than 12month, between their pregnancies. 150 mothers with adequate interval between pregnancies were Surueged in cone and contnol groups and analyzed by t-test. Relative and absolute risks of short - interval pregnancies were determined for birth weight of less 3000gr and birth height of less 49cm. Results: of 2300 mothors, 216 (94%) had short - interval pregnancy. Results have revealed that there is no association between internal of less than 15 months and birth height and weight, however of less than 12months and birth height and weight. The mean (±SD) of birth weight was 3356± 443 smf 3237±430 gr in the control and case group (internal < 12 months), respecvely (P<0.05) meanwhile, their birth height wene 50.4±2 and 49.7±1.8cm, respectively. The RR of Weight < 3000gr was 105 and for height < 49 Wan 2.1 the AR for these ualues were 0.5% and 16.5%, respectively (P<0.05%). Conclusion: Pregnancy with interval of less than 12 monthes is associated with lower birth and weight. Further studies are highly suggested.