Loss of disability-adjusted life years due to heat-related sleep disturbance in the Japanese

Abstract The purpose of this study was to quantify the sleep disturbances caused by climate change using disability-adjusted life years (DALY). revised quality index for daily (SQIDS2), a self-administered questionnaire quality, developed assess disturbances. This referenced and simplified Pittsburgh Sleep Quality Index (PSQI). conducted in Nagoya City August 2011 2012. measured SQIDS2 PSQI. A total 574 participants 710 2012 responded survey. disturbance prevalence calculated from score correlated with minimum temperature ( p = 0.0067). increased when above 24.8 °C. When correcting PSQI score, DALY loss due heat-related (population: 2,266,851) estimated be 81.8 value comparable heatstroke. quantified based on Legislators must recognize critical impact damage high temperatures at night. Additionally, 25 °C should starting point establishing goal or guideline nighttime temperature.