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Mean Short Physical Performance Battery (SPPB) Score during 6-month follow-up period. SPPB evaluates gait speed, balance, and lower extremity strength, with scores ranging from 0 to 12. Scores of 0 to 3 denote physical function disability, 4 to 6 low physical function, 7 to 9 intermediate physical function, and 10 to 12 high physical function. CI = confidence interval.
