Emerging epidemiological studies suggest that long-term ozone(O_(3))exposure may increase the risk of mortality,while pre-existing evidence is mixed and has been generated predominantly in North America and Europe.In ...Emerging epidemiological studies suggest that long-term ozone(O_(3))exposure may increase the risk of mortality,while pre-existing evidence is mixed and has been generated predominantly in North America and Europe.In this study,we investigated the impact of long-term O_(3)exposure on all-cause mortality in a national cohort in China.A dynamic cohort of 20882 participants aged40 years was recruited between 2011 and 2018 from four waves of the China Health and Retirement Longitudinal Study.A Cox proportional hazard regression model with time-varying exposures on an annual scale was used to estimate the mortality risk associated with warm-season(Aprile September)O_(3)exposure.The annual average level of participant exposure to warm-season O_(3)concentrations was 100 mg m^(-3)(range:61 e142 mg m^(-3)).An increase of 10 mg m^(-3)in O_(3)was associated with a hazard ratio(HR)of 1.18(95%confidence interval[CI]:1.13e1.23)for all-cause mortality.Compared with the first exposure quartile of O_(3),HRs of mortality associated with the second,third,and highest exposure quartiles were 1.09(95%CI:0.95e1.25),1.02(95%CI:0.88e1.19),and 1.56(95%CI:1.34e1.82),respectively.A J-shaped concentration eresponse associationwas observed,revealing a non-significant increase in risk below a concentration of approximately 110 mg m^(-3).Low-temperature-exposure residents had a higher risk of mortality associated with long-term O_(3)exposure.This study expands current epidemiological evidence from China and reveals that high-concentration O_(3)exposure curtails the long-term survival of middle-aged and older adults.展开更多
Long-term ozone(O_(3))exposure may lead to non-communicable diseases and increase mortality risk.However,cohort-based studies are relatively rare,and inconsistent exposure metrics impair the credibility of epidemiolog...Long-term ozone(O_(3))exposure may lead to non-communicable diseases and increase mortality risk.However,cohort-based studies are relatively rare,and inconsistent exposure metrics impair the credibility of epidemiological evidence synthetization.To provide more accurate meta-estimations,this study updates existing systematic reviews by including recent studies and summarizing the quantitative associations between O_(3) exposure and cause-specific mortality risks,based on unified exposure metrics.Cross-metric conversion factors were estimated linearly by decadal observations during 1990-2019.展开更多
ACHIEVEMENTS AND CHALLENGES Before the advent ofmodern medicine,childbirth carried extremely high risk of mortality,both maternal and perinatal(the period beginning at the 20–28th week of gestation and ending at 1–4...ACHIEVEMENTS AND CHALLENGES Before the advent ofmodern medicine,childbirth carried extremely high risk of mortality,both maternal and perinatal(the period beginning at the 20–28th week of gestation and ending at 1–4 weeks after delivery).Fortunately,with advances in prenatal healthcare,the prevalence of maternal and perinatal mortalities has significantly reduced.A press conference held on May 30,2022,by the National Health Commission of the People’s Republic of China,reviewed the major progress and achievements in Chinese maternal and child health over the past decade.It highlighted that the maternal mortality rate dropped to 161 per million in 2021,the lowest level in recorded history.展开更多
Everincreasing ambient ozone(O3)pollution in China has been exacerbating cardiopulmonary premature deaths.However,the urban-rural exposure inequity has seldom been explored.Here,we assess populationcale 03 exposure an...Everincreasing ambient ozone(O3)pollution in China has been exacerbating cardiopulmonary premature deaths.However,the urban-rural exposure inequity has seldom been explored.Here,we assess populationcale 03 exposure and mortality burdens between 1990 and 2019 based on integrated pollution tracking and epidemiological evidence.We find Chinese population have been suffering from climbing 03 exposure by 4.3±2.8 ppb per decade as a result of rapid urbanization and growing prosperity of socioeconomic activities.Rural residents are broadly exposed to 9.8±4.1 ppb higher ambient O3 than the adjacent urban citizens,and thus urbaniza-tion-oriented migration compromises the exposure-associated mortality on total population.Cardiopulmonary excess premature deaths attributable to longterm 03 exposure,373,500(95%uncertainty interval[U]:240,600-510,900)in 2019,is underestimated in previous studies due to ignorance of cardiovascular causes.Future 03 pollution policy should focus more on rural population who are facing an aggravating threat of mortality risks to ameliorate environmental health injustice.展开更多
基金supported by the Youth Fund Project of Humanities and Social Sciences Research of the Ministry of Education(Grant No.21YJCZH229).
文摘Emerging epidemiological studies suggest that long-term ozone(O_(3))exposure may increase the risk of mortality,while pre-existing evidence is mixed and has been generated predominantly in North America and Europe.In this study,we investigated the impact of long-term O_(3)exposure on all-cause mortality in a national cohort in China.A dynamic cohort of 20882 participants aged40 years was recruited between 2011 and 2018 from four waves of the China Health and Retirement Longitudinal Study.A Cox proportional hazard regression model with time-varying exposures on an annual scale was used to estimate the mortality risk associated with warm-season(Aprile September)O_(3)exposure.The annual average level of participant exposure to warm-season O_(3)concentrations was 100 mg m^(-3)(range:61 e142 mg m^(-3)).An increase of 10 mg m^(-3)in O_(3)was associated with a hazard ratio(HR)of 1.18(95%confidence interval[CI]:1.13e1.23)for all-cause mortality.Compared with the first exposure quartile of O_(3),HRs of mortality associated with the second,third,and highest exposure quartiles were 1.09(95%CI:0.95e1.25),1.02(95%CI:0.88e1.19),and 1.56(95%CI:1.34e1.82),respectively.A J-shaped concentration eresponse associationwas observed,revealing a non-significant increase in risk below a concentration of approximately 110 mg m^(-3).Low-temperature-exposure residents had a higher risk of mortality associated with long-term O_(3)exposure.This study expands current epidemiological evidence from China and reveals that high-concentration O_(3)exposure curtails the long-term survival of middle-aged and older adults.
基金This study is funded by the UK Natural Environment Research Council(NERC),UK National Centre for Atmospheric Science(NCAS),Australian Research Council(DP210102076)Australian National Health and Medical Research Council(APP2000581).H.Z.S.,M.W.,and S.H.receive funding fromthe Engineering and Physical Sciences Research Council(EPSRC)via the UK Research and Innovation(UKRI)Centre for Doctoral Training in Application of Artificial Intelligence to the study of Environmental Risks(AI4ER,EP/S022961/1).A.T.A.acknowledges funding from NERC(NE/P016383/1)and through the Met Office UKRI Clean Air Program.Y.G.is supported by a Career Development Fellowship of the Australian National Health and Medical Research Council(APP1163693).All contents of this study are solely the responsibility of the grantees and do not represent the official views of the supporting agencies.
文摘Long-term ozone(O_(3))exposure may lead to non-communicable diseases and increase mortality risk.However,cohort-based studies are relatively rare,and inconsistent exposure metrics impair the credibility of epidemiological evidence synthetization.To provide more accurate meta-estimations,this study updates existing systematic reviews by including recent studies and summarizing the quantitative associations between O_(3) exposure and cause-specific mortality risks,based on unified exposure metrics.Cross-metric conversion factors were estimated linearly by decadal observations during 1990-2019.
基金supports in the establishment of ZEBRA.Research receives funding from Zhejiang Province Health Innovative Talent Project(A0466)and International Cooperation Seed ProgramofWomen’s Hospital,Zhejiang University(GH2022B008-01).
文摘ACHIEVEMENTS AND CHALLENGES Before the advent ofmodern medicine,childbirth carried extremely high risk of mortality,both maternal and perinatal(the period beginning at the 20–28th week of gestation and ending at 1–4 weeks after delivery).Fortunately,with advances in prenatal healthcare,the prevalence of maternal and perinatal mortalities has significantly reduced.A press conference held on May 30,2022,by the National Health Commission of the People’s Republic of China,reviewed the major progress and achievements in Chinese maternal and child health over the past decade.It highlighted that the maternal mortality rate dropped to 161 per million in 2021,the lowest level in recorded history.
基金UK Natural Environment Research Council(NERC)UK Na tional Centre for Atmospheric Science(NCAS),Australian Research Council(DP210102076)+8 种基金Australian National Health and Medical Research Council(APP2000581)H.Z.S andM.W.receive funding from the Engineering and Physical Sciences Research Council(EPSRC)via the UK Research and Innovation(UKRI)Centre for Doctoral Training in Application of Artificial Itelligence to the study of Environmental Risks(AI4ER,EP/S022961/1)HZ.S.also gives thanks for generous support from the US Fulbright Pro-gram.P.Y.is supported by China Scholarship Council(no.201906210065)Z.S.acknow-edges support from the UKRI NERC Cambridge Climate,Life and Earth Doctoral Training Partnership(C-CL EAR DTP,NE/S007164/1)M.M.C.is sponsored by the Croucher Founda-tion and Cambridge Commonwealth,European and Intemational Trust funding through a Croucher Cambridge Intemational ScholarshipH.L.is supported by the National NaturalSci ence Foundation of China(no.42061130213)Royal Society of the United Kingdom through the Newton Advanced Fllowship(NAF/R1/201166)A.TA.acknowledges funding from NERC(NE/P016383/1)through the Met Office UKRI Clean Air Program.Y.G.is supported by a Career Development Fellowship of the Australian Natinal Health and Med-|cal Research Council(APP1163693)Special appreciation is extended to Prof.Xiao Lu(School of Atmospheric Sciences,Sun Yat sen University)for his insightful discussion on the quality control of TOAR and CNEMC observations,and Prof.Aiyu Liu(Department of Sociology,Peking University)for her trenchant research perspectives on China's urbanization,to improve this curent interdiscilinary research.
文摘Everincreasing ambient ozone(O3)pollution in China has been exacerbating cardiopulmonary premature deaths.However,the urban-rural exposure inequity has seldom been explored.Here,we assess populationcale 03 exposure and mortality burdens between 1990 and 2019 based on integrated pollution tracking and epidemiological evidence.We find Chinese population have been suffering from climbing 03 exposure by 4.3±2.8 ppb per decade as a result of rapid urbanization and growing prosperity of socioeconomic activities.Rural residents are broadly exposed to 9.8±4.1 ppb higher ambient O3 than the adjacent urban citizens,and thus urbaniza-tion-oriented migration compromises the exposure-associated mortality on total population.Cardiopulmonary excess premature deaths attributable to longterm 03 exposure,373,500(95%uncertainty interval[U]:240,600-510,900)in 2019,is underestimated in previous studies due to ignorance of cardiovascular causes.Future 03 pollution policy should focus more on rural population who are facing an aggravating threat of mortality risks to ameliorate environmental health injustice.