Table 9.
Sensitivity and Specificity Resulting From the Application of High Cut‐Off Points for Total Symptoms, q67 and q68 scales, and for All Three Scales Taken Together
| Scale | Sensitivity (%) | Specificity (%) |
|---|---|---|
| Individual scale | ||
| Total symptom cut‐off | ||
| 45 | 73.8 | 79.7 |
| 47 a | 73.8 | 81.3 |
| 48 | 72.1 | 81.3 |
| q67_Sensitive to EMFs cut‐off | ||
| 1 | 91.0 | 86.2 |
| 2 | 75.4 | 97.6 |
| 3 | 61.5 | 100.0 |
| q68_Detailed description cut‐off | ||
| 1 | 88.5 | 92.7 |
| Multiple scale scores b | ||
| Total symptom score | ||
| q67_Sensitive to EMFs | 94.3 | 94.3 |
| q68_Detailed description | ||
Note: Significant differences in scores between groups were evaluated by setting an α value of 0.0005 in consideration of multiplicity according to a Bonferroni correction.
a
47: The 75th percentile of controls.
b
Multiple scale scores: Each of three items listed is a factor in one multiple logistic prediction (see text).