DEMENTIA risk may be signalled years earlier through something as common as falling, with pooled evidence showing recurrent falls were strongly associated with later diagnosis, suggesting clinicians could use mobility changes as an early warning marker.
Why Falls Could Reveal Dementia Risk Earlier
Falls are common in ageing populations, yet they may also reflect emerging neurological decline before formal diagnosis. Researchers examined whether falls can predict future dementia in adults aged 40 years and older without existing cognitive disease. Earlier identification of dementia risk could support faster assessment, closer follow-up, and preventive interventions in primary and geriatric care settings.
Systematic Review Methods and Included Populations
This systematic review and meta-analysis searched PubMed, Embase, Web of Science, and the Cochrane Library from inception to 1 July 2025. Prospective and retrospective cohort studies evaluating falls and subsequent dementia were eligible. Seven studies met inclusion criteria, with five contributing to pooled analyses. Overall, 2,922,624 participants were included, comprising middle-aged and older adults without dementia at baseline. Study quality was assessed using the Newcastle-Ottawa Scale. Random-effects models in Stata 17.0 estimated pooled dementia incidence after falls and adjusted hazard ratios according to single or multiple fall exposure. The primary outcome was future all-cause dementia. Completion numbers were determined by included cohort follow-up datasets.
Dose-Response Results Strengthen Dementia Association
Among 1,246,410 participants with a history of falls, the pooled future dementia incidence was 11.6% (95% CI, 4.2% to 19.0%; I2=99.8%). In adults aged 60 years and older, pooled incidence was 12.3% (95% CI, 4.7% to 20.0%; I2=99.8%). A single fall increased future dementia risk with adjusted hazard ratio 1.20 (95% CI, 1.07 to 1.36). Multiple falls showed stronger risk elevation, with adjusted hazard ratio 1.74 (95% CI, 1.53 to 1.98). Findings indicated a dose-response relationship between falls frequency and later dementia.
Clinical Meaning and Next Research Steps
These findings suggest recurrent falls may function as a practical clinical marker for heightened dementia risk, prompting earlier cognitive screening and multidisciplinary review. However, substantial heterogeneity and limited study numbers mean higher-quality prospective research is still needed to confirm causality, mechanisms, and prevention strategies.
Reference
Li J et al. Falls as a predictor of future dementia in middle-aged and older adults: a systematic review and meta-analysis. J Am Med Dir Assoc. 2026;27(4):106089.
Featured image: cunaplus on Adobe Stock
