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| Normal sleepiness (score 0-10) |
Mild sleepiness (score 11-14) |
Moderate sleepiness (score 15-18) |
Severe sleepiness (score 19-24) |
p value* | |
|---|---|---|---|---|---|
| Patients | 182 (91%) | 18 (9%) | 0 | 0 | 0.912 |
| Controls | 177 (88.5%) | 20 (10%) | 3 (1.5%) | 0 | |
| p value* | 0.510 | 0.795 | - | - |
*Mann-Whitney U test
