Distribution of selected characteristics among all CHS white and black participants with frailty classification (n = 5275) as well as in the pilot population across frailty status.

*t-test with unequal variance for comparison of continuous characteristics across pilot population groups, Fisher's exact χ2 for categorical comparisons.
†missing BMI for some participants: white nnon-frail = 4212, nfrail = 262; black nnon-frail = 686, nfrail = 101.
‡missing diabetes mellitus status for some participants: white nnon-frail = 4199, nfrail = 260; pilot nnon-frail = 160, nfrail = 153, black nnon-frail = 665, nfrail = 96.