Table 1.
Sample characteristics
| Median | Interquartile range | |
|---|---|---|
| Duration since symptom onset in years | 7.0 | 10.0 |
| Years since diagnosis | 3.0 | 6.0 |
| McGill Pain questionnaire (range 0–45) | 30.0 | 11.0 |
| Frequency | Percentage | |
| Marital status | ||
| Married or living with partner | 733 | 70.2 |
| Separated/divorced/widowed | 192 | 18.4 |
| Single | 119 | 11.4 |
| Taking medication for FMS | 885 | 84.8 |
| Diagnosed co-morbid condition/s | 844 | 80.8 |
| In current employment | 386 | 37.0 |
| Napping behaviour | ||
| Regularly nap once a day or more | 408 | 39.1 |
| Occasionally or never nap | 636 | 60.9 |
| Mean | Standard deviation | |
| Age | 46.9 | 10.4 |
| MOS Sleep problems index I (range 0–100) | 65.2 | 17.0 |
| MOS Sleep problems index II (range 0–100) | 66.9 | 16.7 |
| Fatigue severity score (range 9–63) | 55.3 | 9.9 |
| HADS Anxiety subscale (range 0–21) | 12.2 | 4.4 |
| HADS Depression subscale (range 0–21) | 10.4 | 4.1 |
| EMQ-R Everyday memory | ||
| Total memory score (range 0–52) | 32.74 | 13.5 |
| Item score (Mean) (range 0–4) | 2.52 | 1.0 |