Table 5.
SF-36v2™ results in ME/CFS patients according to conformity to the Canadian diagnostic criteria
| SF-36 scales and summaries | Patients with Canadian diagnostic criteria | Patients without Canadian diagnostic criteria | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Males (n = 20) |
Females (n = 76) |
Total (n = 96) |
Males (n = 15) |
Females (n = 55) |
Total (n = 70) |
Comparison of total mean scores | ||||||||
| mean | SDa | mean | SDa | mean | SDa | mean | SDa | mean | SDa | mean | SDa | Mean difference1 | P- value2 | |
| Physical Component Summary | 26.2 | 7.0 | 23.5 | 7.1 | 24.1 | 7.2 | 34.5 | 8.1 | 25.8 | 8.1 | 30.6 | 8.7 | 6.5 | 0.000 |
| • Physical Functioning | 26.9 | 11.6 | 24.1 | 8.2 | 24.7 | 9.0 | 36.2 | 13.3 | 30.4 | 10.7 | 31.8 | 11.5 | 7.1 | 0.000 |
| • Role-Physical | 21.1 | 5.1 | 22.9 | 5.2 | 22.5 | 5.2 | 30.2 | 10.7 | 29.1 | 9.9 | 29.3 | 10.0 | 6.8 | 0.000 |
| • Bodily Pain | 29.4 | 8.6 | 30.0 | 8.3 | 29.9 | 8.4 | 38.1 | 10.7 | 33.2 | 10.2 | 34.3 | 10.3 | 4.4 | 0.002 |
| • General Health | 23.9 | 6.5 | 26.6 | 6.6 | 26.0 | 6.6 | 32.7 | 8.7 | 30.6 | 8.5 | 31.0 | 8.5 | 5.0 | 0.000 |
| Mental Component Summary | 25.6 | 11.2 | 34.3 | 11.4 | 32.5 | 11.9 | 35.7 | 10.4 | 35.1 | 11.0 | 36.0 | 10.4 | 3.5 | 0.023 |
| • Vitality | 24.3 | 6.1 | 27.3 | 6.3 | 26.6 | 6.3 | 28.8 | 7.2 | 31.5 | 7.4 | 30.9 | 7.4 | 4.3 | 0.000 |
| • Social Functioning | 20.5 | 7.1 | 23.7 | 8.0 | 23.3 | 7.9 | 32.8 | 12.3 | 28.4 | 10.8 | 29.4 | 11.2 | 6.1 | 0.000 |
| • Role-Emotional | 24.1 | 17.3 | 31.7 | 14.6 | 29.6 | 15.3 | 33.1 | 15.0 | 33.0 | 14.5 | 33.1 | 14.5 | 3.5 | 0.076 |
| • Mental Health | 28.5 | 12.4 | 36.2 | 12.0 | 34.6 | 12.4 | 40.6 | 12.8 | 38.9 | 11.3 | 39.3 | 11.6 | 4.7 | 0.007 |
aSD = Standard Deviation
1 Patients without Canadian criteria - Patients with Canadian criteria
2 t-test comparing totals of SF-36v2TM in patients, who conform or not with Canadian diagnostic criteria