Key numbers
2.8
Odds ratio for a history of falls (all fallers)
2.1
Odds ratio for gait problems (all fallers)
3.1
Odds ratio for using a walking aid (people who fell more than once)
2.7
Odds ratio for Parkinson disease (all fallers)
Falls have many causes
A 2010 systematic review pooled prospective studies of risk factors for falls in community-dwelling older people. 74 studies met its criteria. The factors it considered included sociodemographic, mobility, sensory, psychological and medical factors as well as medicines, and it confirmed that falls have a multifactorial cause.
An odds ratio above 1 means the factor went with higher odds of falling. For most factors the pooled odds ratios were only moderately above 1. They were generally higher for recurrent fallers, people who fell more than once, than for everyone who fell. Some general signs of high baseline risk were also strong predictors of falling.
The factors with the highest odds ratios
A previous fall stood out, with an odds ratio of 2.8 for all fallers. Gait problems had an odds ratio of 2.1 for all fallers and 2.2 for recurrent fallers, and using a walking aid had 3.1 for recurrent fallers.
Among medical factors, Parkinson disease had an odds ratio of 2.7 for all fallers and 2.8 for recurrent fallers, and vertigo 2.3 for recurrent fallers. Taking antiepileptic drugs had 1.9 for all fallers and 2.7 for recurrent fallers. These are associations from observational studies, not proof that any one factor causes a fall.
Why one balance or strength number cannot summarize the risk
The review pooled a factor only when at least 5 studies had measured it in a comparable way. Balance and muscle weakness did not meet that bar: the studies measured them too differently, so the authors did not compute a summary estimate for either.
The World Falls Guidelines (2022) set out evidence- and expert consensus-based recommendations for falls prevention and management. For older adults at high risk, they call for a comprehensive multifactorial falls risk assessment followed by personalized interventions across several areas. A Systematic balance test is a physical baseline. It is not a substitute for that assessment and does not identify every cause of falls.
The evidence
Each cited source is labeled according to how it supports the particular claim on this page. Direct test evidence, underlying-capacity findings and population reference values are distinguished from Systematic-defined protocols and standards. Historical development notes are retained internally rather than presented as public evidence. A study of an underlying capacity is never presented as validation of the Systematic test itself.
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Underlying-capacity evidence New source
Deandrea et al. (2010). Risk factors for falls in community-dwelling older people: a systematic review and meta-analysis. Epidemiology (Cambridge, Mass.).
What it found. Across 74 prospective studies of community-dwelling older people, falls had a multifactorial cause. A previous fall, gait problems, walking aids, vertigo, Parkinson disease and antiepileptic drugs had some of the highest odds ratios.
What it does not show. It did not pool balance or muscle weakness because the measures differed, so it gives no single balance cutoff and does not show that one balance score identifies every cause of falls.
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Underlying-capacity evidence New source
Montero-Odasso et al. (2022). World guidelines for falls prevention and management for older adults: a global initiative. Age and ageing.
What it found. The guidelines set out evidence- and expert consensus-based falls prevention and management recommendations for older adults, including a comprehensive multifactorial assessment for people at high risk.
What it does not show. They do not show that a Systematic balance test can replace a complete guideline-based assessment.
The Systematic Healthspan Assessment is a physical baseline. It is not a diagnosis, and it does not estimate a biological age, a disease risk or a lifespan.