Author/Editor		Aihara, Mariko; Aihara, Hitsunori
Title		Influence of meteorologic factors on bronchial asthma deaths
Type		članek
Source		In: Hočevar A, Črepinšek Z, Kajfež-Bogataj L, editors. Biometeorology 14. Proceedings of the 14th international congress of biometeorology. Part 2. (Vol 3); 1996 Sep 1-8; Ljubljana. Ljubljana: Slovenian meteorological society,
Publication year		1996
Volume		str. 11-6
Language		eng
Abstract		Autopsies were performed at the Department of legal Medicine, Yokohama City University School of Medicine in 79 cases of deaths from bronchial asthma from 1992 to 1995, and the diurnal ranges and day-to-day differences in environmental factors such as temperature, humidity and barometric pressure were obtained from the data from Yokohama Meteorologic observatory on the basis of the time and date of the deaths to evaluate the relationship between environmental conditions and the occurrence of death from bronchial asthma. The incidence of deaths from bronchial asthma was high on clear and cloudy days, and high from March to May and from July to September. The time zones of the day with the highest incidence of death from bronchial asthma were immediately after the decrease in the body temperature before falling asleep, and immediately after the increase in body temperature before awakening. The incidence was higher when the air temperature was lower (r = -0.73) and when humidity was lower (r = -0,86). The incidence of dath from bronchial asthma tended to increase as the barometric pressure rose (r = 0.70). No correlations were found between the incidence of death from bronchial asthma and the diurnal ranges or day-to-day diffences in environmental factors.
Descriptors		ASTHMA DEATH, SUDDEN METEOROLOGICAL FACTORS TEMPERATURE HUMIDITY ATMOSPHERIC PRESSURE CIRCADIAN RHYTHM SEASONS