| چکیده انگلیسی مقاله |
Background: We tried to investigate the effect of PM2.5 on daily counts of outpatient visits in the Guang’anmen Hospital to determine if short-term PM2.5 exposure with extremely high concentration affects cardiopulmonary function of Beijing residents. Methods: Outpatient visits and PM 2.5 data from 01/11/2011 to 03/31/2013 were extracted from the Guang’anmen Hospital and the American Embassy in Beijing, respectively. Followed by using a semi-parametric generalized additive model (GAM) with time dependent covariates, we analyzed the association between PM 2.5 concentrations and daily count of outpatient visits on Day 0, 1, 2, 3, 4 and 5 of PM 2.5 exposure. Results: Overall, 284354 subjects were collected. There were significant associations of short-term PM 2.5 exposures with outpatient visits for cardiopulmonary diseases ( P < 0.05). Specifically, a 10 µg/m 3 increase in PM 2.5 was positively associated with a 0.74% of increase in angina visit on the first day and 0.50% increased visit on the second day ( P < 0.05). With an increase in PM 2.5 , the cough and respiratory visits significantly decreased by 0.17% and 0.30% on the first day, respectively ( P < 0.05). However, there were significant positive associations of PM 2.5 with increased cough and respiratory visits (increased by 0.17% and 0.10%, respectively) on the fifth day ( P < 0.05). Conclusion: Our association studies showed an instant effect of PM 2.5 level on cardiovascular outpatient visit in the Guang’anmen Hospital in Beijing while a lag effect on respiratory outpatient visits. |
| نویسندگان مقاله |
guangxi li | guangxi li
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china division of pulmonary and critical care medicine, mayo epidemiology and translational research in intensive care, rochester, unit-ed states
haitao های شبکه | haitao lan
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
zhiguo liu | zhiguo liu
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
ting روی | ting rui
fu wai hospital, chinese national center for cardiovascular diseases, beijing, 100037, china
jiapeng lu | jiapeng lu
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
lingjie bian | lingjie bian
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
yinghui ونگ | yinghui wang
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
shihan ونگ | shihan wang
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
hong زانگ | hong zhang
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
yongjun bian | yongjun bian
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
هیو li | hui li
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
yuyan گیو | yuyan guo
guang amp; 039;anmen hospital, chinese academy of chinese medical sciences, beijing, 100053, china
shigang liu | shigang liu
dept. of oncology, institute of medicinal biotechnology, peking :union: medical college, chinese academy of medical sciences, beijing, 100050, china
liang li | liang li
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