自Simpson(1957)首次报告孕妇吸烟之害已近25年。他发现吸烟孕妇的早产率高。Lowe(1959)也发现其婴儿出生体重显著减低。作者也认识到吸烟孕妇的流产率及围产期死亡率都高,胎儿呼吸运动减少及儿童智力低下,但若在孕四个月前戒烟或削减烟量则可免除上述危害。另有人认为个体内因及其行为影响也与吸烟毒害相同。为确知此高危人 Almost 25 years have passed since Simpson (1957) first reported smoking among pregnant women. He found that pregnant women smoking a high rate of premature birth. Lowe (1959) also found that their babies born significantly lower body weight. The authors also recognize that smoking pregnant women have high rates of miscarriage and perinatal mortality, decreased fetal respiratory activity and impaired mental status in children, but these risks could be avoided by quitting or cutting off smoke four months prior to pregnancy. Others believe that the individual’s internal and behavioral effects are also the same as smoking poison. To know this high-risk people