Zayeri Farid, Kazemnejad Anoshirvan, Ganjali Mojtaba, Babaei Gholamreza, Khanafshar Navid, Nayeri Fatemeh
Department of Biostatistics, School of Medical Sciences, Tarbiat Modarres University, Tehran, Iran.
Saudi Med J. 2005 Sep;26(9):1367-71.
To determine the incidence rate and factors associated with hypothermia in Iranian newborns and to discover the effect of hypothermia on neonatal morbidity and mortality.
We selected a random sample of 1952 neonates using a multistage sampling technique from February 2004 to February 2005 in University Teaching Hospitals in Iran. We measured repeatedly at different time points the rectal temperature of these newborns. At each time of measurement, those with rectal temperature <36 degrees C were considered as hypothermic.
The obtained results showed that approximately one third of newborns became hypothermic immediately after birth. In addition, the regression analysis revealed that low birth weights, prematures, low apgar scores, infants of multiple pregnancies and those who received cardiopulmonary resuscitation had higher risk for being hypothermic. It was also found that hypothermia increases the risk of metabolic acidosis, jaundice, respiratory distress, hypoglycemia, pulmonary hemorrhage and death, regardless of the newborn's weight and gestational age.
There is an urgent need to train mothers and all levels of neonatal care staff to control this health problem in our country.
确定伊朗新生儿体温过低的发生率及相关因素，并探究体温过低对新生儿发病率和死亡率的影响。
2004年2月至2005年2月期间，我们在伊朗的大学教学医院采用多阶段抽样技术随机抽取了1952名新生儿样本。我们在不同时间点反复测量这些新生儿的直肠温度。每次测量时，直肠温度<36摄氏度的新生儿被视为体温过低。
所得结果显示，约三分之一的新生儿在出生后立即出现体温过低。此外，回归分析表明，低出生体重、早产、阿氏评分低、多胎妊娠婴儿以及接受心肺复苏的婴儿体温过低的风险更高。还发现，无论新生儿的体重和胎龄如何，体温过低都会增加代谢性酸中毒、黄疸、呼吸窘迫、低血糖、肺出血和死亡的风险。
迫切需要培训母亲和各级新生儿护理人员，以控制我国的这一健康问题。
