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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Effect of ambient heat on all-cause mortality in the coastal city of Surat, India
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Effect of ambient heat on all-cause mortality in the coastal city of Surat, India

机译：环境热量对印度沿海城市苏拉特全因死亡率的影响

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摘要

A wealth of information is available on extreme heat and humidity associated with mortality for cities of the developed world, but there is a dearth in the literature for coastal cities of the developing world. The aim of the present study was to assess the effect of ambient heat on all-cause mortality on the urban population of Surat, a coastal city in India. Retrospective analysis of all cause mortality data with temperature and humidity was performed for the summer months (March-May) for the period 2001-12. Student's t-test and correlation coefficient were used to study the relationship between ambient heat and mortality. A total of 36,167 deaths for 961 summer days (2001-12) were analysed. Mean daily mortality was estimated at 37.6 +/- 9.4 for the study period. There is an increase of 11% mortality when the temperature crosses 40 degrees C. However, there is an increase of 3 (9%) deaths per day during danger-level heat-risk days and 6 (18%) deaths per day during high-risk heat days (extreme danger) respectively. Mortality seems to be well correlated with the high temperature (P 0.001) and high heat index (HI) values (P 0.001). The effect of extreme heat on mortality is at a peak on day-2 of the maximum temperature. The study concludes that the impact of ambient heat in the increase of all cause mortality is clearly evident and HI is more important than maximum temperature (18% deaths/day versus 11% deaths/day). Therefore, emphasis should be given to develop measures of adaptation towards ambient heat. This analysis may fulfil the needs of policy makers and apply strategies like integrated coastal zone management. Extreme heat-related mortality merits further analysis in order to reduce harmful health effects among Surat's most vulnerable urban population.
机译：关于发达国家的城市，与死亡相关的极端高温和高湿度的信息很多，但发展中国家沿海城市的文献却很少。本研究的目的是评估环境热对全因死亡率对印度沿海城市苏拉特市区人口的影响。对2001-12年夏季（3月至5月）的所有因死亡率和温度和湿度数据进行回顾性分析。使用学生的t检验和相关系数研究环境热量与死亡率之间的关系。分析了961个夏季（2001-12年）的死亡人数，共36,167人。在研究期间，平均每日死亡率估计为37.6 +/- 9.4。当温度超过40摄氏度时，死亡率增加11％。但是，在危险水平的热风险天期间，每天死亡人数增加3（9％），在高温时每天增加6（18％）死亡。 -高热天（极端危险）。死亡率似乎与高温（P <0.001）和高热指数（HI）值（P <0.001）密切相关。极端高温对死亡率的影响在最高温度的第2天达到峰值。研究得出的结论是，环境热对所有原因死亡率增加的影响是显而易见的，HI比最高温度更为重要（18％的死亡/天与11％的死亡/天）。因此，应着重制定适应环境热量的措施。该分析可以满足决策者的需求，并可以应用诸如沿海地区综合管理之类的策略。为了减少苏拉特最脆弱的城市人口对健康的有害影响，应进一步分析与极端热量相关的死亡率。

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