Mortality Risk of Hot Nights: A Nationwide Population-Based Retrospective Study in Japan.

ABSTRACT:

Background

The health effects of heat are well documented; however, limited information is available regarding the health risks of hot nights. Hot nights have become more common, increasing at a faster rate than hot days, making it urgent to understand the characteristics of the hot night risk.

Objectives

We estimated the effects of hot nights on the cause- and location-specific mortality in a nationwide assessment over 43 y (1973-2015) using a unified analytical framework in the 47 prefectures of Japan.

Methods

Hot nights were defined as days with a) minimum temperature ≥25°C (HN25) and b) minimum temperature ≥95th percentile (HN95th) for the prefecture. We conducted a time-series analysis using a two-stage approach during the hot night occurrence seaso

SUBMITTER: Kim SE 

PROVIDER: S-EPMC10181675 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature