Simpson R J, Armand Smith N G
J Epidemiol Community Health. 1986 Sep;40(3):223-7. doi: 10.1136/jech.40.3.223.
The incidence of low birthweight has been related to smoking prevalence in each social group using published data for 1984. The attributable risk of low birthweight has been estimated, based on a relative risk of 2 for mothers who smoke during pregnancy. Assuming 12.5% of cigarette smokers stopped smoking during pregnancy, 18.1% of all low weight births were caused by maternal smoking in 1984. The percentage for most social groups was similar. The overall attributable risk from smoking was estimated to be 12.7 low weight births per 1000 total births, with a further 12.1 per 1000 due to other factors acting in a socioeconomic gradient. We estimate that the minimum attainable low birthweight incidence in 1984 was 45.4 per 1000 total births, based on the lowest observed incidence, corrected for smoking prevalence, which was in social group II. We recommend the addition of maternal smoking information to the Korner maternity clinical options data set, to enable an accurate assessment of the risks and to provide local monitoring of initiatives to reduce smoking prevalence during pregnancy.
利用1984年已发表的数据，低出生体重的发生率与每个社会群体的吸烟流行率相关。基于孕期吸烟母亲的相对风险为2，估算了低出生体重的归因风险。假设12.5%的吸烟者在孕期戒烟，1984年所有低体重出生中有18.1%是由母亲吸烟所致。大多数社会群体的这一比例相似。吸烟的总体归因风险估计为每1000例总出生中有12.7例低体重出生，另有每1000例中有12.1例是由于社会经济梯度中起作用的其他因素。我们估计，基于社会群体II中观察到的最低发生率并校正吸烟流行率后，1984年可达到的最低低出生体重发生率为每1000例总出生中有45.4例。我们建议将母亲吸烟信息添加到科纳产妇临床选项数据集中，以便准确评估风险，并对降低孕期吸烟流行率的举措进行本地监测。
