Using Symptom Thresholds to Predict Somatoform Disorders
Number of Severe Somatic Symptoms ≥ | |||||||
---|---|---|---|---|---|---|---|
Test Characteristics | 1 | 2 | 3a | 4 | 5 | 6 | 7 |
These data are calculated without inverse probability weighting. | |||||||
a Optimal sum of sensitivity and specificity. | |||||||
Sensitivity | 97.9 | 95.8 | 87.5 | 66.7 | 52.1 | 41.7 | 25.0 |
Specificity | 20.3 | 37.7 | 54.5 | 71.5 | 79.7 | 86.5 | 90.1 |
Negative predictive value | 98.7 | 98.6 | 97.1 | 94.3 | 92.7 | 91.9 | 90.2 |
Positive predictive value | 13.8 | 16.7 | 20.0 | 23.4 | 25.0 | 28.6 | 24.5 |