Table 4.
DSQ-PEM symptom means and standard deviations.
| Meets CCC | Does Not Meet CCC | Sig | |
|---|---|---|---|
| M (SD) | M (SD) | ||
| Minimum exercise makes you physically tired | 78.09 (18.88) | 49.17 (29.70) | ** |
| Physically drained or sick after mild activity | 74.41 (18.91) | 43.70 (29.61) | ** |
| Next day soreness or fatigue after non-strenuous, everyday activities | 72.96 (19.00) | 44.72 (25.89) | ** |
| Mentally tired after slightest effort | 69.93 (20.41) | 38.06 (24.71) | ** |
| Dead, heavy feeling after starting to exercise | 63.75 (29.14) | 38.06 (32.48) | ** |
| % (n) | % (n) | ||
| If you were to become exhausted after actively participating in extracurricular activities, sports, or outings with friends, would you recover within an hour or two after the activity ended? | 3.32 (9) | 20.83 (40) | ** |
| Do you experience a worsening of your fatigue/energy related illness after engaging in minimal physical effort? | 97.42 (264) | 75.00 (144) | ** |
| Do you experience a worsening of your fatigue/energy related illness after engaging in mental effort? | 95.96 (261) | 67.71 (130) | ** |
| If you feel worse after activities, how long does this last? | ** | ||
| 1 h or less | 0.74 (2) | 6.04 (11) | |
| 2–3 h | 3.68 (10) | 15.93 (29) | |
| 4–10 h | 11.76 (32) | 15.93 (29) | |
| 11–13 h | 3.31 (9) | 3.85 (7) | |
| 14–23 h | 7.72 (21) | 11.54 (21) | |
| 24 h or more | 72.79 (198) | 46.70 (85) | |
| If you do not exercise, is it because exercise makes your symptoms worse? | 97.31 (253) | 79.33 (142) | ** |
** p < 0.01. Note symptoms are arranged in descending order of means for the group meeting CCC criteria. Variables duration, sex, and region are covariates.