研究发现,吸烟和二手烟与数以百万计的怀孕风险相关联。 Smoking and secondhand smoke linked to millions of pregnancy risks, study finds.

清华大学的一项研究表明,吸烟和二手烟暴露大大增加了不孕、流产、出生体重不足和早产的风险。 A study from Tsinghua University shows that smoking and secondhand smoke exposure significantly increase risks of infertility, miscarriage, low birth weight, and preterm delivery. 据估计,由于不育和流产,这些因素可能导致损失高达970万分之970万分之980万分之1 085万分之二手烟雾暴露。 It estimates these factors could lead to losses of up to 9.7 million due to infertility and miscarriage and 10.85 million due to secondhand smoke exposure. 据发现,出生体重不足和早产的风险增加了25%,达到72%。 Risks of low birth weight and preterm birth were found to increase by 25% to 72%. 研究报告建议加强烟草控制措施,例如提高烟草税和执行无烟政策,以改善怀孕结果。 The study recommends stronger tobacco control measures, like raising tobacco taxes and implementing smoke-free policies, to improve pregnancy outcomes.