Groups | Sensitivity | Specificity | Upgrade rates | |
---|---|---|---|---|
Low-risk group | High-risk group | |||
Training set | Â | Â | Â | Â |
 0.63a | 81.4(70/86) | 86.7(52/60) | 23.5(16/68) | 89.7(70/78) |
 0.18a | 95.3(82/86) | 56.7(34/60) | 10.5(4/38) | 75.9(82/108) |
 0.11a | 98.8(85/86) | 38.3(23/60) | 4.1(1/24) | 69.7(85/122) |
Internal validation set | Â | Â | Â | Â |
 0.63a | 77.8(21/27) | 90.0(18/20) | 25.0(6/24) | 91.3(21/23) |
 0.18a | 100(27/27) | 50.0(10/20) | 0 | 73.0(27/37) |
 0.11a | 100(27/27) | 35.0(7/20) | 0 | 67.5(27/40) |
External validation set | Â | Â | Â | Â |
 0.63a | 73.1(19/26) | 90.3(28/31) | 20.0(7/35) | 86.4(19/22) |
 0.18a | 100(26/26) | 67.7(21/31) | 0 | 72.2(26/36) |
 0.11a | 100(26/26) | 41.9(13/31) | 0 | 59.1(26/44) |