Association between air particulate matter and stroke attack or mortality: a Meta-analysis / 中华流行病学杂志

ABSTRACT

Objective To analyze the associations between particulate air pollution (PM10,PM25) and stroke daily attack or mortality. Methods Meta-analysis method was used to polysynthetically analyze 16 quantitative studies about the associations between particulate air pollution and stroke daily attack or mortality. The relative odds ratio(OR) of stroke attack or mortality associated with per 10 μg/m3 increase of particulate matter concentration was used as effective value,taking a sensitivity analysis for the results. Results A 10 μg/m3 increase in PM10was associated with a 1.09% (95%CI 0.10%-2.08% ) increase in stroke daily attack (OR=1.011,95%CI 1.001-1.021)and 0.70% (95%CI 0.60%-0.80% ) increase in stroke daily mortality (OR= 1.007, 95%CI 1.006-1.008). The results of sensitivity analysis supported above results. As for PM2.5 OR appeared to be 1.001 (95%CI 0.992-1.010) with a 10 μg/m3 increase in stroke daily attack and 1.052 (95%CI0.958-1.154) for daily mortality. Conclusion There are positive associations between PM10 and stroke daily attack and mortality, increase of PM25 was not associated with stroke attack and mortality.