From: Illness progression in chronic fatigue syndrome: a shifting immune baseline
Subject sub-group | Classification model | Â | Â |
---|---|---|---|
 | Training selection | Training selection |  |
(a) Training set: Age < =18 years | IL-1α, 6, 8 | IL-1α, 6, 8 |  |
 Correct rate | 0.88 | 0.88 |  |
 Error rate | 0.12 | 0.12 |  |
 Sensitivity | 0.89 | 0.89 |  |
 Specificity | 0.88 | 0.88 |  |
 Positive predictive value | 0.84 | 0.84 |  |
 Negative predictive value | 0.91 | 0.91 |  |
 | Training selection | Test set | Parameters tuned |
(b) Training set: 18 < Age < = 50 years | IL-1α, 15 | IL-1α, 6, 8 | IL-1α, 6, 8 |
 Correct rate | 0.72 | 0.37 | 0.77 |
 Error rate | 0.28 | 0.63 | 0.23 |
 Sensitivity | 0.73 | 0.09 | 0.77 |
 Specificity | 0.71 | 0.67 | 0.76 |
 Positive predictive value | 0.73 | 0.22 | 0.77 |
 Negative predictive value | 0.71 | 0.41 | 0.76 |
(c) Training set: Age > 50 years a | IL-6, 8, 15, TNFα | IL-1α, 6, 8 | IL-1α, 6, 8 |
 Correct rate | 0.84 | 0.48 | 0.75 |
 Error rate | 0.16 | 0.52 | 0.25 |
 Sensitivity | 0.86 | 0.18 | 0.75 |
 Specificity | 0.82 | 0.79 | 0.75 |
 Positive predictive value | 0.83 | 0.45 | 0.75 |
 Negative predictive value | 0.85 | 0.49 | 0.75 |