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Incidence of fatigue and drowsiness by the different number of visit (9)
| Number of events |
||
|---|---|---|
| Fatigue | Drowsiness | |
| First visit | 10 (20.8%) | 6 (35.3%) |
| Second visit | 7 (14.6%) | 5 (29.4%) |
| Third visit | 5 (10.4%) | 5 (29.4%) |
| Fourth visit or more | 26 (54.2%) | 1 (5.9%) |
| Total | 48 (100%) | 17 (100%) |
