Butler Lindsey, Gallagher Lisa, Winter Michael, Fabian M Patricia, Wesselink Amelia, Aschengrau Ann
Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA.
Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
Int J Environ Health Res. 2021 Jun;31(4):465-474. doi: 10.1080/09603123.2019.1673882. Epub 2019 Oct 6.
We conducted a retrospective case-control study of 1,097 women in Massachusetts and Rhode Island, USA, to examine the association between stillbirth related to placental abruption or placental insufficiency and maternal exposure to traffic-related air pollution. We utilized distance to nearest roadway proximity metrics as a proxy for traffic-related air pollution exposure. No meaningful increase in the overall odds of placental-associated stillbirths was observed (adjusted OR: 1.1, 95% CI: 0.5-2.8). However, mothers living within 50 m of a roadway had a 60% increased odds of experiencing a stillbirth related to placental abruption compared to mothers living greater than 200 m away. This suggestive finding was imprecise due to the small case number in the highest exposure category (95% CI: 0.6-4.0). Future studies of placental abruption with more precise exposure assessments are warranted.
我们对美国马萨诸塞州和罗德岛的1097名女性进行了一项回顾性病例对照研究,以检验与胎盘早剥或胎盘功能不全相关的死产与母亲暴露于交通相关空气污染之间的关联。我们使用到最近道路的距离指标作为交通相关空气污染暴露的替代指标。未观察到与胎盘相关死产的总体几率有显著增加(调整后的比值比:1.1,95%置信区间:0.5-2.8)。然而,与居住在距离道路200米以上的母亲相比,居住在距离道路50米以内的母亲经历与胎盘早剥相关死产的几率增加了60%。由于最高暴露类别中的病例数较少,这一提示性发现并不精确(95%置信区间:0.6-4.0)。有必要对胎盘早剥进行更精确暴露评估的未来研究。