Dong J W, Xu X P, Dockery D W
Peking Union Medical College Hospital, Beijing.
Zhonghua Liu Xing Bing Xue Za Zhi. 1996 Feb;17(1):13-6.
Outpatient visits to Beijing Longfu Hospital, a community-based hospital, were analyzed to assess the association of air pollution with daily outpatient visits in 1991. Measurements of total suspended particulate (TSP) were available for 224 days (mean was 359 micrograms/m3) and sulfur dioxide (SO2) for 221 days (mean was 124 micrograms/m3). The effects of TSP and SO2 were assessed by linear regressions adjusting for temperature, humidity, seasons and the workdays as covariables with a Markov correction for auto-correlation in time series data. There was a significant exposure-response relationship between TSP level and non-surgery outpatient visits but not for surgery visits. SO2 was only significantly associated with pediatric visits.
对北京隆福医院（一家社区医院）的门诊就诊情况进行了分析，以评估1991年空气污染与每日门诊就诊之间的关联。可获取224天的总悬浮颗粒物（TSP）测量值（均值为359微克/立方米）以及221天的二氧化硫（SO₂）测量值（均值为124微克/立方米）。通过线性回归评估TSP和SO₂的影响，将温度、湿度、季节和工作日作为协变量进行调整，并对时间序列数据中的自相关性进行马尔可夫校正。TSP水平与非手术门诊就诊之间存在显著的暴露-反应关系，但与手术就诊无关。SO₂仅与儿科就诊显著相关。
