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Functional status and comorbidity assessment tools designed for older adults. The Charlson Comorbidity Index quantifies cumulative disease burden to predict one-year and ten-year mortality, incorporating 19 weighted conditions with optional age adjustment. The Barthel Index measures activities of daily living (ADLs) to track functional independence and rehabilitation progress. These instruments support clinical decision-making around goals of care, discharge planning, surgical candidacy, and long-term care placement. They are most useful when repeated over time to capture functional trajectory rather than as single time-point snapshots. Comorbidity indices should complement — not replace — comprehensive geriatric assessment including cognition, nutrition, and social support.
Every tool in this domain is linked below, each with its own formula, inputs, and interpretation notes. Starting from the clinical area instead of the subject? The same calculators are grouped on the specialties pages, the full alphabetical list collects everything in one place, and the comparison tool lines up three tools side by side.