FRAIL Frailty Scale

Pre-frail individuals (score 1-2) show early signs of frailty and are at intermediate risk for future disability and mortality, but have not yet developed the full phenotype. This group is the primary target for preventive interventions (exercise, nutrition optimization, social engagement) that can reverse decline or prevent progression to clinical frailty. Frail individuals (score ≥3) require more intensive, multidisciplinary management including comprehensive assessment of underlying causes and potentially more aggressive medical optimization.

Patient report of unintentional weight loss is used for screening; however, if weight loss is a key clinical concern or if the patient's report is unreliable, review of recent clinic visit weights or asking about changes in clothing fit can provide corroboration. Documentation in the medical record is ideal but not required for FRAIL scoring; the tool is designed for rapid clinical assessment using available history.

The FRAIL Scale captures the clinical phenotype of frailty through self-reported and observable domains, but does not include objective performance measures. It correlates with grip strength, gait speed, and physical activity level but is not a substitute for performance-based assessment. Ideally, FRAIL screening is combined with objective measures such as the Short Physical Performance Battery for comprehensive frailty phenotyping.

The FRAIL Scale relies on accurate patient history and self-report. In moderate to severe cognitive impairment, responses may be unreliable. In mild cognitive impairment, collateral history from a caregiver can supplement patient report. For individuals with significant dementia, informant-based assessment or objective measures (weight trends, medication review) may be more reliable than direct patient questioning.