宮城県郡部における脳卒中死亡と住宅の冬期室温についての調査研究

抄録

This paper investigates the relationship between mortality from cerebrovascular disease (hereafter called stroke) and the indoor thermal environment in two selected towns with different socioeconomic compositions: Shiwahime, an agricultural town with relatively high stroke mortality, and Karakuwa, a fishing town with relatively low stroke mortality, using a case-control research design. The survey of the indoor thermal environment was conducted from November 29 to December 5, 1986 in Shiwahime and from December 9 to December 15, 1986 in Karakuwa in the households of cases and controls. One member of each case and control household was asked to complete a questionnaire on the indoor thermal environment on any one day during the survey period. He was also asked to record the temperature of the living room, the bedroom of the oldest member, and the toilet three times a day (morning, afternoon and evening) during the survey period. In order to examine the indoor temperature more closely, eight households in each study town were selected from the case and control households. Temperatures were recorded continuously indoors and outdoors for a week using self-recording thermometers . The findings are summarized as follows: 1) Room temperatures in the control households were generally higher than those in the case households by up to 1.3°C. 2) The thermal conditions of the housing in the case households were a little inferior to those in the control households.