ArticleFrontiers in public health2026
Analysis of influencing factors and prediction of falls among rural older adults in China based on a nomogram model.
Article in Frontiers in public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To explore rural fall determinants and build a nomogram for high-risk identification. This study aims to preliminarily identify high-risk individuals and provide reference for subsequent intervention research. Methods: Stratified multistage cluster sampling was used: one city from each of the northern, central, and southern regions of Anhui Province, one county per city, and six villages per county (18 villages total). Township hospital staff and village committee staff helped recruit participants who completed a face-to-face questionnaire and physical tests. 1,546 rural adults aged ≥60 years were enrolled. Inclusion: ≥60 years, local residence ≥6 months, communicable. Exclusion: severe illness or bedridden. A fall was explicitly defined as "an event in which the participant unintentionally came to rest on the ground, floor, or a lower level," excluding incidents caused by sudden paralysis, stroke, or violent impact. Participants were randomly split 8:2 into training ( Results: The observed fall prevalence was 24.34% in the study population. From the univariate and multivariate analyses of the training set, five variables were identified: age, anxiety, frailty, living arrangement, and frequency of coarse grain consumption. These variables were incorporated into the nomogram model, which exhibited an area under the ROC curve (AUC) of 0.7215 (95% CI:0.690-0.753), indicating good discriminative performance. The calibration curve demonstrated high calibration accuracy. Internal validation of the nomogram model using the validation set yielded an AUC of 0.703 (95% CI:0.644-0.762), reflecting robust discriminative ability. The Hosmer-Lemeshow test indicated good calibration in both the training set ( Conclusion: The nomogram we built-incorporating age, anxiety, frailty, living arrangement, and frequency of coarse-grain intake-offers a visual risk estimation tool for estimating fall risk in rural older adults. It can readily flag high-risk individuals and provide clues for the follow-up targeted health management or intervention research.
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