Hourly Relative Humidity and Fall Injuries in China: A Nationwide Case-Crossover Study Based on 4.19 Million Cases.

ABSTRACT: Falls represent a significant public health issue worldwide. Previous studies have demonstrated associations of temperature with fall risk, but the effect and burden of hourly relative humidity and fall morbidity have been rarely investigated. Fall data and meteorological data were collected from the National Injury Surveillance System during 2006-2021 in China. Associations between hourly relative humidity and fall onset were analyzed using conditional logistic regression combined with a distributed lag nonlinear model. Stratified analysis was used to identify potential association modifiers. Several sensitivity analyses were applied to examine the robustness of the results. The study involved 4 197 495 fall-related cases. Relative humidity exhibited monotonic relationships with the fall

SUBMITTER: Zeng W 

PROVIDER: S-EPMC12362207 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature