选择足月妊娠的新疆伊犁地区哈萨克族产妇88例,维吾尔族101例‘居住伊犁地区十年以上的汉族产妇106例,称其新生儿及胎盘重量。发现哈萨克族的新生儿体重、胎盘重量都高于维吾尔族、汉族组。其胎盘系数也偏大。 Eighty-eight pregnant women of Kazakh ethnicity and 101 Uygur women living in Yili Prefecture of Xinjiang Province who chose term pregnancy, 106 Chinese women living in Yili Prefecture for more than ten years, called their newborn and placental weight. Newborn weight and placental weight were found to be higher in Kazaks than in Uyghur and Han nationality groups. The placental coefficient is also large.