山东大学学报 (医学版) ›› 2018, Vol. 56 ›› Issue (11): 76-83.doi: 10.6040/j.issn.1671-7554.0.2018.442
肖长春1,唐静2,李玉荣2,翟金霞2
XIAO Changchun1, TANG Jing2, LI Yurong2, ZHAI Jinxia2
摘要: 目的 探讨合肥市空气污染物短期暴露对儿童肺炎日门诊量的影响。 方法 收集合肥市2014~2017年逐日空气污染物资料(PM10、PM2.5、SO2、NO2、CO、 O3)、气象资料(气温、气压、相对湿度)以及某儿童医院肺炎门诊资料,采用时间序列半参数广义相加模型,建立单污染物模型及多污染物模型,分析空气污染物与儿童肺炎的暴露-反应关系,包括滞后效应(lag0~lag6)、移动平均滞后效应(lag01~lag06),采用滞后天数最大效应值作为空气污染物对门诊量影响的相对危险度。 结果 2014~2017年合肥市空气PM10、PM2.5、SO2、NO2、CO、O3日平均浓度分别为90.24、64.72、16.08、39.10、969.90、76.97 μg /m3,其中PM10、PM2.5高于《GB 3095-2012环境空气质量标准》二级标准。研究期间共记录67 569条儿童肺炎门诊病例,平均日门诊量为46.25例。单污染物模型显示,PM10、PM2.5、SO2、NO2、CO、O3浓度每增加10 μg/m3,儿童肺炎日门诊量的相对危险度分别为1.011 1、1.009 8、1.021 8、1.001 5、1.001 2、1.003 4,其中SO2效应最强。在调整其他污染物的全污染物模型中,仅PM10与儿童肺炎日门诊量仍存在统计学关联(RR=1.008 9, P<0.05)。 结论 空气污染物的短期暴露影响儿童肺炎日门诊量,其中PM10、PM2.5、SO2、CO影响较大。
中图分类号:
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