Decreasing smoking prevalence during pregnancy in Sweden: The effect on small-for-gestational-age births
Decreasing smoking prevalence during pregnancy in Sweden: The effect on small-for-gestational-age births
复制标题
DOI：
10.2105/ajph.87.3.410
复制
发表时间：
1997-03-01
影响因子：
12.7
通讯作者：
Haglund, B
中科院分区：
文献类型：
--
作者：
Cnattingius, S;Haglund, B
目标。这项研究调查了近期孕妇吸烟率的变化是否影响了小胎龄分娩的风险。利用瑞典1983年至1992年所有活产单胎婴儿的数据（n = 1048139），计算1983年至1985年、1986年至1989年和1990年至1992年小胎龄婴儿的优势比[ORs]和归因风险。每日吸烟率由1983年的29.4%下降至1992年的21.8%。在这三个时期，母亲吸烟导致的小于胎龄分娩的优势比几乎相同：1-9支/天OR = 2.1或2.2；大于或等于10支/天or = 2.8。小胎龄儿吸烟的归因风险从1983 - 1985年的26.2%下降到1990 - 1992年的20.9%。研究结果表明，怀孕期间接触烟草的情况确实有所减少，小胎龄分娩的可归因风险也有所降低。
Objectives. This study examined whether recent changes in smoking prevalence among pregnant women have affected risks of small-for-gestational-age births.Methods. With data for all live single births in Sweden from 1983 through 1992 (n = 1 048 139), odds ratios [ORs] and attributable risks of small-for-gestational-age births were calculated for 1983 through 1985, 1986 through 1989, and 1990 through 1992.Results. Daily smoking decreased from 29.4% in 1983 to 21.8% in 1992. For the three time periods, the odds ratios of small-for-gestational-age births by maternal smoking were almost identical: 1-9 cigarettes/day OR = 2.1 or 2.2; for greater than or equal to 10 cigarettes/day OR = 2.8. The attributable risk of smoking for small-for-gestational-age births declined from 26.2% in 1983 through 1985 to 20.9% in 1990 through 1992.Conclusions. The findings point to a true decrease in tobacco exposure during pregnancy and a reduction in the attributable risk for small-for-gestational-age births.