Table 3 Diagnostic values of ten random training sets compared to corresponding test sets
From: Bayesian predictors of very poor health related quality of life and mortality in patients with COPD
Training set number | Sensitivity | Specificity | Diagnostic accuracy | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|
1 | 23.4 | 95.4 | 78.5 | 61.1 | 80.2 |
2 | 15.6 | 94.8 | 77.0 | 46.7 | 79.5 |
3 | 21.7 | 93.5 | 77.0 | 50 | 80 |
4 | 16.7 | 96.1 | 77.0 | 57.1 | 78.5 |
5 | 30.2 | 87.8 | 72.5 | 47.1 | 77.7 |
6 | 12.1 | 96.5 | 72.0 | 58.3 | 72.9 |
7 | 15.4 | 92.6 | 72.5 | 42.1 | 75.7 |
8 | 4.2 | 97.4 | 75.0 | 33.3 | 76.3 |
9 | 41.1 | 85.4 | 73.0 | 52.3 | 78.9 |
10 | 14.4 | 88.1 | 67.0 | 32 | 72 |
mean | 19.5 | 92.8 | 74.2 | 48 | 77.2 |
standard deviation | 10.3 | 4.2 | 3.4 | 9.9 | 2.9 |