Association between extreme temperature events and multimorbidity among older adults: evidence from the CHARLS.

ABSTRACT:

Background

The older adults are a high-risk group for multimorbidity. However, a possible multimorbidity link with extreme temperature events is unknown. We aimed to explore the association of cold spells and heatwaves and risk of multimorbidity among older people.

Methods

This cohort included 9475 adults aged 45 and over from the China Health and Retirement Longitudinal Study (CHARLS). Heatwaves and cold spells were defined according to the average temperature, with the combination of six thresholds (≥ 97.5%, 97.5%, 92.5%, 7.5%, 5%, and 2.5%) and three durations (≥ 2, 3, and 4 days). Our outcome variable was multimorbidity, defined as the coexistence of two or more chronic diseases in individuals. Cox proportional hazard models with time-dependent covariates were employed t

SUBMITTER: Tang J 

PROVIDER: S-EPMC12599051 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature