| SPPB score | 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(0.0 to 1.3) | 3.7(0.0 to 8.9) | 3.6(0.0 to 8.7) | 100.0 | 100.0 | 0.0 | 0.0 | |
| <2 | 0.8(0.0 to 1.8) | 5.6(0.0 to 11.9) | 3.6(0.0 to 8.7) | 100.0 | 99.7(99.0 to 100.0) | 0.0 | 33.3(0.0 to 100.0) |
| <3 | 1.1(0.0 to 2.2) | 7.4(0.2 to 14.6) | 5.5(0.0 to 11.7) | 100.0 | 99.7(99.0 to 100.0) | 0.0 | 25.0(0.0 to 100.0) |
| <4 | 1.9(0.5 to 3.4) | 11.1(2.5 to 19.8) | 7.3(0.2 to 14.4) | 99.7(99.0 to 100.0) | 99.0(97.9 to 100.0) | 14.3(0.0 to 49.2) | 42.9(0.0 to 92.3) |
| <5 | 3.0(1.3 to 4.8) | 18.5(7.8 to 29.2) | 10.9(2.4 to 19.4) | 99.7(99.0 to 100.0) | 98.4(96.9 to 99.8) | 9.1(0.0 to 29.3) | 45.5(10.4 to 80.5) |
| <6 | 5.5(3.2 to 7.9) | 31.5(18.7 to 44.3) | 21.8(10.6 to 33.1) | 99.0(97.9 to 100.0) | 97.4(95.6 to 99.2) | 15.0(0.0 to 32.1) | 40.0(16.5 to 63.5) |
| <7 | 7.2(4.5 to 9.9) | 38.9(25.5 to 52.3) | 23.6(12.0 to 35.2) | 98.4(97 to 99.8) | 95.8(93.5 to 98.0) | 19.2(3.0 to 35.5) | 50.0(29.4 to 70.6) |
| <8 | 10.2(7.1 to 13.4) | 46.3(32.6 to 60.0) | 30.9(18.3 to 43.5) | 96.1(93.9 to 98.3) | 93.5(90.7 to 96.3) | 32.4(16.6 to 48.3) | 54.1(37.2 to 70.9) |
| <9 | 15.7(12.0 to 19.5) | 55.6(41.9 to 69.2) | 40.0(26.6 to 53.4) | 91.2(88.1 to 94.4) | 88.6(85.0 to 92.2) | 47.4(34.0 to 60.7) | 61.4(48.4 to 74.4) |
| <10 | 24.6(20.1 to 29.0) | 68.5(55.7 to 81.3) | 56.4(42.8 to 69.9) | 83.1(78.9 to 87.3) | 81.1(76.7 to 85.5) | 58.4(48.0 to 68.9) | 65.2(55.1 to 75.3) |
| 32.3(27.5 to 37.2) | 72.2(59.9 to 84.6) | 67.3(54.5 to 80.1) | 74.7(69.8 to 79.6) | 73.9(69.0 to 78.9) | 66.7(58.0 to 75.3) | 68.4(59.8 to 76.9) | |
| <12 | 38.4(33.4 to 43.4) | 75.9(64.1 to 87.7) | 72.7(60.6 to 84.9) | 68.2(63.0 to 73.4) | 67.8(62.5 to 73.0) | 70.5(62.8 to 78.2) | 71.2(63.6 to 78.8) |
Percentages refer to the total sample (n = 362), not only to individuals with a FRAIL score ≥1. SPPB = Short Physical Performance Battery.