Centre for Research on Ageing, Health and Wellbeing, Research School of Population Health, College of Medicine and Health, Australian National University, Canberra, Australian Capital Territory, Australia.
Centre for Health and Social Care Improvement, Faculty of Education, Health, and Wellbeing, University of Wolverhampton, Wolverhampton, United Kingdom.
Am J Epidemiol. 2018 May 1;187(5):919-921. doi: 10.1093/aje/kwx378.
Pan et al. (Am J Epidemiol. 2018;187(5):911-918) reported findings that exposure to secondhand smoke (SHS) was associated with cognitive decline over the course of 2 years among middle-aged and older Chinese women who never smoked, and they also reported a dose-response relationship. SHS exposure affects vulnerable people disproportionately because they have less control or choice over their living and working environment. Smoking is an established risk factor for dementia, but recent evidence reports on dementia-risk increase have not included SHS. Many epidemiologic studies collect data on smoking but not SHS exposure. SHS may be one of the most prevalent and modifiable risk factors for cognitive decline and therefore represents a major potential target for reduction of dementia risk. Given the high prevalence of smoking in China and other parts of the world, there is an urgent need to raise awareness of SHS reduction as part of global and national strategies to reduce cognitive decline and dementia and to introduce legislation that protects nonsmokers and vulnerable children and adults from SHS.
潘等人（《美国流行病学杂志》。2018；187(5):911-918）报告称，在中国从不吸烟的中年及老年女性中，暴露于二手烟（SHS）与 2 年内认知能力下降有关，他们还报告了一种剂量反应关系。SHS 暴露对易受影响的人群造成不成比例的影响，因为他们对自己的生活和工作环境的控制或选择较少。吸烟是痴呆症的既定危险因素，但最近有关痴呆症风险增加的证据报告并未包括 SHS。许多流行病学研究都收集了关于吸烟的数据，但没有收集 SHS 暴露的数据。SHS 可能是认知能力下降最普遍和最可改变的危险因素之一，因此代表了降低痴呆症风险的主要潜在目标。鉴于中国和世界其他地区吸烟的高患病率，迫切需要提高对减少 SHS 的认识，作为减少认知能力下降和痴呆症的全球和国家战略的一部分，并出台保护不吸烟者和弱势儿童和成人免受 SHS 影响的立法。
