[The impact of ambient particulate matter (PM10) on the population mortality for cerebrovascular diseases-a case-crossover study].
OBJECTIVE
To analyze the association between the concentration of ambient inhalable particulate matter (PM10) and population mortality for cerebrovascular diseases and to explore the impact of PM10 on cerebrovascular diseases.


METHODS
Data including meteorological factors, air pollutants (NO2, SO2 and PM10) and cerebrovascular disease mortality in one district of Beijing from 2004 to 2008 were collected and both symmetric bidirectional case-crossover design and conditional logistic regression model were used to analyze the associations among them.


RESULTS
After adjusting the influence of meteorological factors as daily average temperature and relative humidity, the single pollutant model showed that there was no significant lag effect. In the multi-pollutant model, the effect of the every 105.43 µg/m(3) increase of ambient PM10 had a larger impact on the daily death of the cerebrovascular diseases with statistically significant difference (P < 0.05). The effect of ambient PM10 pollution on daily death of cerebrovascular diseases was significant for females, 65 year-olds and in winter season.


CONCLUSIONS
Our data showed that elevated levels of ambient PM10 was positively associated with the increase of cerebrovascular disease mortality. The elevated levels of ambient PM10 could lead to the increase of the daily mortality on cerebrovascular diseases for females, elderly who were 65 or older and in winter seasons.
Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing 100191, China.
Xu-ying
XY
Wang
Feng-ming
FM
Dong
Ming-hao
MH
Jin
Xiao-chuan
XC
Pan
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000393:Air Pollutants; D002318:Cardiovascular Diseases / Q000401:mortality*; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D052638:Particulate Matter; D012621:Seasons
D000393:Air Pollutants; D052638:Particulate Matter