Epidemiological character and risk analysis of heat stroke cases during 2011-2014 in Ji'nan city
Objective By analyzing the epidemiological data of high temperature and heat stroke cases occurred in four hot months (May to August) in recent years in Ji'nan to provide the basis for the policy making and forewarning.Methods Meteorological parameters and heat stroke cases were collected and analyzed.Heat wave study period was defined as a heat wave event, before and after which one or more hot days and heat wave envents appeared with an interval of ≤ 3 d.Accordingly, the reference period was defined with the similar season distribution and the same continuing days and day of week to the study period, and withnot hot day.RR and 95％CI were used as the risk indicator to compare the cases in study period with those in reference period.Results May and August between 2011 and 2014 had an increasing daily average temperature and daily maximum temperature.A total of 205 cases were reported and most in 2013 (55.1％).The high frequency cases were reported in July in each year.71.2％ of 205 cases were diagnosed as severe cases.Most of the cases in age groups of 60-79 and 40-59 were male, which presented a younger distribution than female.More than half of total cases (129 cases) were reported in five heat wave periods,three of which significant increased risk was observed in, the risk in rest two heat wave periods could not be estimated due to the related reference periods without cases.Conclusion Increased high temperatures are observed in hot months in recent years.Most of the heat stroke cases are severe and male cases are younger than female.Significant increasing risk is found in heat wave period.
High temperatureHeat waveHeat strokeEpidemiological characterRisk assessment
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NSTL
万方数据
