Table 3 UPDRS label based on the rest tremor characteristics (qualitative and quantitative)
From: Telemonitoring Parkinson’s disease using machine learning by combining tremor and voice analysis
UPDRS | Qualitative | Quantitative | ||
|---|---|---|---|---|
Labels | Amplitude | Consistency | Max. amplitude | Occurrence in recording |
0 | Low | Absent | No tremor | No tremor |
1 | Medium | Intermittent | < 1 cm | ≤ 25% |
2 | Med. or high | Intermittent | ≥ 1 cm but < 3 cm | > 25% but ≤ 50% |
3 | Med. or high | Continuous | ≥ 3 cm but < 10 cm | > 50% but ≤ 75% |
4 | Very high | Continuous | ≥ 10 cm | > 75% |