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目的 :了解早产的危险因素 ,为制定预防策略和措施提供科学依据 .方法 :采用成组病例对照研究 ,针对早产的5 5项可疑危险因素 ,对 95例早产产妇和 1 1 6例足月产产妇进行问卷调查 .结果 :单因素分析 ,得到 1 7项早产危险因素 ,经进一步多因素logistic回归分析发现产检次数过少 (OR =1 1 .8,95 %CI=3.7～ 37.4 )、暴露视频终端 (VDT)每日 >2 .5h (OR=4 .6 ,95 %CI=1 .6～ 1 3.2 )、孕期接触有毒化学物 (OR =76 .6 ,95 %CI=5 .7～ 1 0 32 .1 )、负性事件 (OR =2 0 .5 ,95 %CI=2 .5～ 1 70 .4 )、妊高征 (OR =7.6 ,95 %CI =2 .0～ 2 8.7)、妊娠合并贫血 (OR =4 .3,95 %CI=1 .4～ 1 3.4 )是早产的主要危险因素 .结论 :产前检查次数过少 ,孕期暴露VDT时间较长 ,孕期接触有毒化学物、负性事件、妊高征和妊娠合并贫血是早产的主要危险因素 .
OBJECTIVE: To understand the risk factors of preterm birth and provide a scientific basis for the formulation of prevention strategies and measures.Methods: According to a group of case-control study, 95 preterm labor women and 116 full-term births Maternal questionnaires were conducted.Results: Seventeen risk factors for preterm birth were obtained by univariate analysis.Multiple-logistic regression analysis showed that the number of antenatal examinations was too small (OR = 11.8, 95% CI = 3.7-37.4) The terminal VDT was> 2.5h (OR = 4.6, 95% CI = 1.6-1.22) per day, with exposure to toxic chemicals during pregnancy (OR = 76.6, 95% CI = 5.7-7 (OR = 7.6, 95% CI = 2.0-0.2 8.7), negative events (OR = 20.5, 95% CI = 2.5-170.4) (OR = 4.3, 95% CI = 1.4-1.34) were the main risk factors for preterm delivery.Conclusion: The number of antenatal examinations is too small, the duration of exposure to VDT during pregnancy is longer, the exposure to toxic chemicals during pregnancy , Negative events, pregnancy-induced hypertension and pregnancy-related anemia are the major risk factors for preterm birth.