ENVIRONMENT TEMPERATURE AND DEATH RATES
ENVIRONMENT TEMPERATURE AND DEATH RATES
复制标题
DOI:
10.1093/ageing/7.4.210
复制
发表时间:
1978-01-01
期刊:
影响因子:
6.7
通讯作者:
MORTON J
中科院分区:
文献类型:
--
作者:
BULL G M;MORTON J
Analysis of recorded monthly deaths in England and Wales, UK, shows a close association of death rates with external temperature in most diseases other than the cancers. Analysis of daily deaths in England and Eales and in New York, USA, shows the following relationships between temperature and deaths from myocardial infarction, strokes and pneumonia. Between -10 and +20.degree. C (minimum temperature) there is a nearly linear fall in deaths as the temperature rises. Above 20.degree. C deaths rise steeply as the temperature rises and below -10.degree. C rise steeply as temperature falls. These associations of deaths with temperature falls. These associations of deaths with temperature are much stronger in the elderly than in younger subjects. Detailed analysis of the daily deaths in England and Wales from myocardial infarction, strokes and pneumonia show that short-term (1-2 days) temperature changes have little effect on death rates but medium-term (7-10 days) and longer-term (3 or more wk) changes are associated with very significant changes in death rates. The 3 diseases vary in the time relations between temperature change and change in death rates. In all 3 there is an interval between the change in temperature and death; this is shortest in the case of myocardial infarction (1-2 days before death), longest in the case of pneumonia (about 1 wk before death) and intermediate in the case of strokes (about 3-4 days before death). At low temperatures death rates increase as the duration of temperature change increases, while at high temperatures (but below +20.degree. C) death rates decrease as the period of temperature change is longer. There is probably a causal relationship between temperature change and deaths from a wide variety of diseases. A proximal link in the chain is probably a failure of autonomic control of body temperature in the elderly leading to a change in body temperature and some humoral change which leads to death. It is not appropriate to concentrate on hypothermia as the relationship between temperature and death is seen at all temperatures.