the effects of risk factors on the improvement of hypothermia neonatal using fuzzy transition

Background: neonatal hypothermia is a major risk factor for mortality after delivery. the present study aims to identify the risk factors associated with transition in hypothermia state with new definition of hypothermia states. methods: a total of 479 neonates hospitalized in neonatal intensive care unit of valiasr hospital, tehran, iran, in 2005, participated in the study. the rectal temperature of neonates were measured immediately after delivery and every 30 min afterwards, until their temperature became normal. results: the mean weight of neonatal was 2580±882.9 grams and the mean of delivery room temperature was 29.2±1.45 °c. most of the neonates had mild hypothermia. there were significant associations between the weight of neonate, cardiopulmonary resuscitation, and apgar scores and hypothermia state (p<0.05). also, death of neonates was related to hypothermia state. conclusion: findings of the current study indicated that a major risk factor for hypothermia was low weight of the neonates.