Abstract:
BACKGROUND:Although numerous multicentre studies have estimated the association between ozone exposure and mortality, there are currently no nationally representative multicentre studies of the ozone-mortality relationship in China. OBJECTIVE:To investigate the effect on total (nonaccidental) and cause-specific mortality of short-term exposure to ambient ozone, and examine different exposure metrics. METHODS:The effects of short-term exposure to ozone were analysed using various metrics (daily 1-h maximum, daily 8-h maximum and daily average) on total (nonaccidental) and cause-specific (circulatory and respiratory) mortality from 2013 to 2015 in 34 counties in 10 cities across China. We used distributed lag nonlinear models for estimating county-specific relative risk of mortality and combined the county-specific relative rates by conducting a random-effects meta-analysis. RESULTS:In all-year analyses, a 10 μg m-3 increase in daily average, daily 1-h maximum and daily 8-h maximum ozone at lag02 corresponded to an increase of 0.6% (95% CI: 0.33, 0.88), 0.26% (95% CI: 0.12, 0.39) and 0.37% (95% CI: 0.2, 0.55) in total (nonaccidental) mortality, 0.66% (95% CI: 0.28, 1.04), 0.31% (95% CI: 0.11, 0.51) and 0.39% (95% CI: 0.16, 0.62) in circulatory mortality, and 0.57% (95% CI: -0.09, 1.23), 0.11% (95% CI: -0.22, 0.44) and 0.22% (95% CI: -0.28, 0.72) in respiratory mortality, respectively. These estimates had a different seasonal pattern by cause of death. In general, the seasonal patterns were consistent with the times of year when ozone concentrations are highest. CONCLUSIONS:Our findings suggest that in China, the acute effects of ozone are more closely related to daily average exposure than any other metric.
journal_name
J Intern Medjournal_title
Journal of internal medicineauthors
Sun Q,Wang W,Chen C,Ban J,Xu D,Zhu P,He MZ,Li Tdoi
10.1111/joim.12724subject
Has Abstractpub_date
2018-05-01 00:00:00pages
481-488issue
5eissn
0954-6820issn
1365-2796journal_volume
283pub_type
杂志文章,meta分析,多中心研究abstract::Clinical symptoms were studied in 69 consecutive patients below the age of 40 years who were attending the emergency unit because of unexplained chest pain. In a structured interview a few weeks after the emergency visit, only one-third of the patients reported that they believed in the doctor's diagnosis; they believ...
journal_title:Journal of internal medicine
pub_type: 杂志文章
doi:10.1111/j.1365-2796.1991.tb00442.x
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abstract::The introduction of biologic therapies heralded a new era in the treatment for chronic inflammatory autoimmune diseases of which rheumatoid arthritis is one of the most prevalent. From a scientific point of view, these therapies demonstrated that the targeting of individual cytokines or cell-surface markers is a very ...
journal_title:Journal of internal medicine
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abstract::We describe a 57-year-old male with hypertrophic obstructive cardiomyopathy and occult blood loss. Septal alcohol ablation reduced the left ventricular outflow tract obstruction and eliminated recurrent bleeding. The case resembles Heyde's syndrome, i.e. the association between occult gastrointestinal bleeding and aor...
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doi:10.1111/j.1365-2796.2006.01679.x
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pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 杂志文章,评审
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journal_title:Journal of internal medicine
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doi:10.1046/j.1365-2796.2002.01009.x
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journal_title:Journal of internal medicine
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journal_title:Journal of internal medicine
pub_type: 杂志文章,多中心研究
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journal_title:Journal of internal medicine
pub_type: 杂志文章
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更新日期:2006-12-01 00:00:00
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journal_title:Journal of internal medicine
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journal_title:Journal of internal medicine
pub_type: 杂志文章
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更新日期:1995-08-01 00:00:00
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
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journal_title:Journal of internal medicine
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