The Use of a Quasi-Experimental Study on the Mortality Effect of a Heat Wave Warning System in Korea

Many cities and countries have implemented heat wave warning systems to combat the health effects of extreme heat. Little is known about whether these systems actually reduce heat-related morbidity and mortality. We examined the effectiveness of heat wave alerts and health plans in reducing the mortality risk of heat waves in Korea by utilizing the discrepancy between the alerts and the monitored temperature. A difference-in-differences analysis combined with propensity score weighting was used. Mortality, weather monitoring, and heat wave alert announcement data were collected for 7 major cities during 2009-2014. Results showed evidence of risk reduction among people aged 19-64 without education (-0.144 deaths/1,000,000 people, 95% CI: -0.227, -0.061) and children aged 0-19 (-0.555 deaths/1,000,000 people, 95% CI: -0.993, -0.117). Decreased cardiovascular and respiratory mortality was found in several subgroups including single persons, widowed people, blue-collar workers, people with no education or the highest level of education (university or higher). No evidence was found for decreased all-cause mortality in the population (1.687 deaths/1,000,000 people per day; 95% CI: 1.118, 2.255). In conclusion, heat wave alerts may reduce mortality for several causes and subpopulations of age and socio-economic status. Further work needs to examine the pathways through which the alerts impact subpopulations differently.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:16

Enthalten in:

International journal of environmental research and public health - 16(2019), 12 vom: 25. Juni

Sprache:

Englisch

Beteiligte Personen:

Heo, Seulkee [VerfasserIn]
Nori-Sarma, Amruta [VerfasserIn]
Lee, Kwonsang [VerfasserIn]
Benmarhnia, Tarik [VerfasserIn]
Dominici, Francesca [VerfasserIn]
Bell, Michelle L [VerfasserIn]

Links:

Volltext

Themen:

Adaptation
Climate change
Extreme heat
Heat action plans
Heat waves
Hot temperature
Journal Article
Mortality
Quasi-experiment
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, Non-P.H.S.
Vulnerability

Anmerkungen:

Date Completed 06.12.2019

Date Revised 16.05.2020

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijerph16122245

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM298566974