| Gait speed, m/s | Prevalence (95% CI) | Sensitivity (95% CI) | Specificity (95% CI) | % of positives who were not frail (95% CI) | |||
|---|---|---|---|---|---|---|---|
| Fried's frailty phenotype | Frailty index | Fried's frailty phenotype | Frailty index | Fried's frailty phenotype | Frailty index | ||
| <0.6 | 6.7(4.1 to 9.4) | 36.0(22.2 to 49.8) | 24.5(12.0 to 37.0) | 98.3(96.8 to 99.8) | 96.2(94.1 to 98.4) | 21.7(3.5 to 40.0) | 47.8(25.7 to 69.9) |
| <0.7 | 9.6(6.5 to 12.8) | 40.0(25.9 to 54.1) | 24.5(12.0 to 37.0) | 95.5(93.2 to 97.9) | 92.8(89.9 to 95.8) | 39.4(21.8 to 57.0) | 63.6(46.3 to 81.0) |
| <0.8 | 16.4(12.4 to 20.3) | 52.0(37.7 to 66.3) | 34.7(20.9 to 48.5) | 89.7(86.2 to 93.2) | 86.7(82.8 to 90.6) | 53.6(40.1 to 67.0) | 69.6(57.2 to 82.1) |
| <0.9 | 23.7(19.2 to 28.2) | 62.0(48.1 to 75.9) | 57.1(42.8 to 71.5) | 82.9(78.5 to 87.2) | 81.9(77.5 to 86.3) | 61.7(50.9 to 72.5) | 65.4(54.9 to 76.0) |
| <1 | 33.0(28.0 to 38.1) | 74.0(61.4 to 86.6) | 69.4(56.0 to 82.8) | 74.0(68.9 to 79.0) | 73.0(67.9 to 78.1) | 67.3(58.5 to 76.0) | 69.9(61.3 to 78.5) |
| <1.1 | 36.3(31.1 to 41.4) | 80.0(68.5 to 91.5) | 71.4(58.3 to 84.5) | 71.2(66.0 to 76.5) | 69.6(64.3 to 74.9) | 67.7(59.4 to 76.1) | 71.8(63.7 to 79.8) |
| <1.2 | 39.5(34.3 to 44.7) | 82.0(71.0 to 93.0) | 73.5(60.7 to 86.3) | 67.8(62.4 to 73.2) | 66.2(60.8 to 71.7) | 69.6(61.8 to 77.5) | 73.3(65.8 to 80.9) |
| <1.3 | 41.5(36.3 to 46.8) | 82.0(71.0 to 93.0) | 75.5(63.0 to 88.0) | 65.4(59.9 to 70.9) | 64.2(58.6 to 69.7) | 71.1(63.6 to 78.7) | 73.9(66.6 to 81.3) |
| <1.4 | 42.1(36.8 to 47.4) | 82.0(71.0 to 93.0) | 75.5(63.0 to 88.0) | 64.7(59.2 to 70.2) | 63.5(57.9 to 69.0) | 71.5(64.1 to 79.0) | 74.3(67.1 to 81.5) |
| <1.5 | 42.4(37.1 to 47.7) | 82.0(71.0 to 93.0) | 75.5(63.0 to 88.0) | 64.4(58.9 to 69.9) | 63.1(57.6 to 68.7) | 71.7(64.3 to 79.1) | 74.5(67.3 to 81.7) |
Percentages refer to the total sample (n = 342), not only to individuals with a FRAIL score ≥1.