Table 4.
Score evaluation for derivation and validation groups
| |
Derivation groupa |
Validation groupa |
||||||
|---|---|---|---|---|---|---|---|---|
| Predictive score | Sensitivity | Specificity | PPVb | NPVc | Sensitivity | Specitifity | PPV | NPV |
|
≥ 0 |
100.00 |
0.00 |
6.5 |
…. |
100.00 |
0.00 |
6.5 |
…. |
|
≥ 1 |
83.70 |
54.65 |
11.3 |
98.0 |
93.20 |
16.69 |
7.2 |
97.3 |
|
≥ 2 |
46.74 |
80.71 |
14.3 |
95.6 |
65.05 |
67.36 |
12,1 |
96.5 |
|
≥ 3 |
34.78 |
90.54 |
20.3 |
95.3 |
26.21 |
89.84 |
15.2 |
94.6 |
|
≥ 4 |
13.04 |
97.30 |
25.0 |
94.2 |
11.65 |
95.76 |
16.0 |
94.0 |
| ≥ 5 | 7.61 | 98.80 | 30.4 | 93.9 | 4.85 | 98.99 | 25.0 | 93.8 |
aThe derivation group included 1490 patients and the validation group included 1589 patients.
bPPV: positive predictive value (probability of lost to follow-up outcome).
cNPV: negative predictive value (probability of no lost to follow-up outcome).