Table 1.

MDS-UPDRS: 2.2 saliva and drooling [6]

0: Normal: Not at all (no problems)

1: Slight: I have too much saliva, but do not drool

2: Mild: I have some drooling during sleep, but none when I am awake

3: Moderate: I have some drooling when I am awake, but I usually do not need tissues or an handkerchief

4: Severe: I have so much drooling that I regularly need to use tissues or a handkerchief to protect my clothes