研究已显示吸烟的妊娠妇女可增加低出生体重儿(LBW)的危险。近年来的随机试验显示妇女在妊娠早期戒烟可减少低出生体重儿的危险。我们根据不同的资料,评价分析了戒烟计划在防止低出生体重儿及产期死亡率方面的成本效益。假定这一计划中,每位参加者需花费30美元并且15％的参加者戒了烟,我们可确定:一项提供给所有吸烟妊娠妇女的计划可使5,876名低出生体重儿转为正常体重, Studies have shown that pregnant women who smoke can increase the risk of low birth weight (LBW) children. Randomized trials in recent years have shown that women who quit smoking early in pregnancy can reduce the risk of low birth weight infants. Based on different data, we evaluated the cost-effectiveness of smoking cessation programs in preventing low birth weight babies and perinatal mortality. Assuming that each participant in the program spends $30 and 15% of participants quit smoking, we can determine that: a plan for all smoking pregnant women can turn 5,876 low birth weight babies into normal weight ,