Emergency transport status of heat stroke patients nationwide (2021)

　Heat stroke often occurs in hot summers, and the Fire and Disaster Management Agency of the Ministry of Internal Affairs and Communications compiles the emergency transport status of heat stroke patients from May to September throughout Japan. However, due to the impact of the COVID-19 pandemic, May was not included in the survey period, but the survey period was short from Monday, June 1st. In fiscal 2021, the survey began on Monday, April 26, 2021. The graph below shows the number of weekly transports in the emergency transport situation of heat stroke patients nationwide since 2015. Usually, after the rainy season, the number of emergency transporters for heat stroke patients increases rapidly. Looking at the relationship between the week after the rainy season in the Kanto Koshin region and the week of the peak number of emergency transporters in Japan, the 28th and 31st weeks in 2016, 2017 was the 27th and 28th weeks, 2017 was the 26th and 29th weeks, 2018 was the 30th and 31st weeks in 2020, and 2020 was the 31st and 33rd weeks in 2020. As in 2016, 2017, and 2019, 2019, the week following the week after the rainy season in the Kanto Koshin region is often the peak week of the number of emergency transporters for heat stroke patients nationwide.
In addition, according to a summary of the Fire and Disaster Management Agency of the Ministry of Internal Affairs and Communications (reference: "Emergency transport due to heat stroke in 2020" October 27, 2020), the percentage of elderly people aged 65 and over in the number of emergency transport personnel due to heat stroke was the highest at 57.9%, and the location of heat stroke occurred at 43.3%. Due to the COVID-19 pandemic, there were many people who refrained from going out and were in their homes, and many elderly people were at home. From May to September, when heat stroke is high, heat stroke measures are also important in addition to corona measures.
　The number of people in the emergency transport week for heat stroke patients in Japan in 2021 is shown in the red line below. The number of personnel is also shown on the graph. May is rare in May, but in some years, such as 2019, when a small peak was seen due to the arrival of strong heat waves. In addition, in 2020, immediately after the rainy season, the number of people in emergency transport for heat stroke patients was higher than usual, probably due to the impact of wearing masks in high humidity levels.

Trends in the number of weekly emergency transport personnel of heat stroke patients nationwide (2015-2021)

　In addition, we make the above graph using numerical value of Ministry of Internal Affairs and Communications Fire and Disaster Management Agency homepage "heatstroke patient emergency transport situation" (outside site) announcement. Regarding the number of emergency transport personnel for heat stroke patients in the week of 2021 (3) in the graph, the weekly report (preliminary figures) are used first, followed by the monthly report (confirmed value).
　For more information about heat stroke, please refer to our Yokohama City Inst. of Health web page "Let's prevent heat stroke (heatstroke, sunstroke)"
In the 23rd week (June 7-13), the number of emergency transport personnel throughout the country was 1885, compared to the average number of emergency transport personnel in Japan was 1,1885. In the 23rd week of 2021 (June 7-13) of 2021, the temperature rose nationwide than the 22nd week (May 31-June 6), and midsummer days (highest temperature was more than 30 degrees Celsius) and summer days (maximum temperature was 25 degrees Celsius) and summer days (maximum temperature was 25 degrees Celsius). The graph below shows trends in the highest temperature in Sapporo, Tokyo and Fukuoka. In particular, on June 10, many places were covered by high pressure nationwide and became midsummer days (maximum temperature is 30 degrees Celsius) and summer days (maximum temperature is 25 degrees Celsius). The number of emergency transport personnel was 396, the highest throughout the 22nd, 23rd and 24th weeks (from May 31 to June 20). The highest temperatures on June 10 were 29.5 degrees Celsius in Sapporo, 29.4 degrees Celsius in Asahikawa, 30.7 degrees Celsius in Tokyo, 32.1 degrees Celsius in Osaka, and 31.3 degrees Celsius in Fukuoka. In Yokohama City, 4 days including June 10, June 8, 9, 10, and 11 are fine weather continues, with the highest temperature of 30.2 degrees, 30.4 degrees, 29.3 degrees, 28.2 degrees, 28.2 degrees Celsius The number of emergency transport patients was high, with 7, 4, 4, and 4 people. From May 1 to June 27, the total number of emergency transporters for heat stroke patients in Yokohama City was 59, but during this period there were four or more emergency transport personnel for heat stroke patients during this period. It was only.

Graph of changes in maximum temperature in Sapporo, Tokyo, and Fukuoka (2021)

On July 16, 2021, the Japan Meteorological Agency announced that the rainy season began in Kanto Koshin, southern Tohoku, and northeastern Tohoku regions are believed to have started the rainy season. Usually, the occurrence of heat stroke increases rapidly after the rainy season, but in 2021, the number of emergency transport personnel for heat stroke is 4,623 in the 28th week (July 12-18), 29th week (July 19-25), and the 29th week (July 19-25), the number has increased rapidly after the rainy season. It is the season with a lot of heat stroke. Let's be careful about heat stroke prevention.

• Ministry of Internal Affairs and Communications, Fire and Disaster Management AgencyHeat stroke patient emergency transport situation (outside site)」
• Yokohama City Inst. of Health, Inc.Heat stroke information」
• Yokohama City Inst. of Health, Inc.Emergency transport status of heat stroke patients (2018)
• Yokohama City Inst. of Health, Inc.Emergency transport status of heat stroke patients in Japan (2019)"
• Yokohama City Inst. of Health, Inc.Emergency transport status of heat stroke patients nationwide (2020))」

Published on June 2, 2021

Updated on October 6, 2021