本文分析144例早产的某些危险因素中,孕期低体重增加在早产中占47.27%;而对照组为18.75%(P<0.01)。胎膜早破在早产组中达43.05%;对照组为6.25%(P<0.01)。孕妇的身高和年龄在二组中无显著差异。孕早期阴道出血者,早产组高于对照组,但无显著性差异。 This article analyzes the 144 cases of some risk factors for preterm birth, low birth weight during pregnancy accounted for 47.27% of preterm birth, while the control group was 18.75% (P <0.01). Premature rupture of membranes in preterm labor group reached 43.05%; control group was 6.25% (P <0.01). Pregnant women’s height and age in the two groups no significant difference. Early pregnancy vaginal bleeding, premature labor group was higher than the control group, but no significant difference.