Table 3.
Severity of tremor types as per TRGRS scores
| TRGRS | DLB (n = 30) | tPD (n = 65) | ET (n = 34) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % (n) | Mean ± SD | Freq-Hz | Side B % (n) | % (n) | Mean ± SD | Freq-Hz | Side B % (n) | % (n) | Mean ± SD | Freq-Hz | Side B % (n) | |
| 1. Head | 27 (8) | 1.0 | 2.5–4.8 | – | 3 (2) | 1.0 | 2.4–4.9 | – | 29 (10) | 1.30 ± 0.5 | 2.5–5.2 | – |
| 2. Face | 43 (13) | 1.31 ± 0.5 | 4.1–7.2 | – | 25 (16) | 1.31 ± 0.5 | 4.2–6.9 | – | – | – | – | – |
| 3. Voice | – | – | – | – | – | – | – | – | 17 (6) | 1.25 ± 0.5 | NA | – |
| 4. a. Rest arm | 87 (26) | 1.77 ± 0.6 | 4.9–7.2 | 57 (16) | 82 (53) | 2.08 ± 0.8 | 4.9–7.1 | 8 (4) | 9 (3) | 1.0 | 5.2–7.4 | – (3) |
| b. Forward arm | 57 (17) | 2.24 ± 0.4 | 4.3–7.5 | 59 (10) | 46 (30) | 1.50 ± 0.7 | 4.6–7.4 | 10 (3) | 100 (34) | 1.94 ± 0.7 | 5.4–7.4 | 100 (34) |
| c. Lateral arm | 57 (17) | 2.00 ± 0.8 | 4.8–7.2 | 59 (10) | 15 (10) | 1.50 ± 0.7 | 4.3–7.3 | 10 (1) | 100 (34) | 2.00 ± 0.8 | 5.2–7.3 | 100 (34) |
| b-c* reemergent | 57 (17) | 19 (12) | ||||||||||
| d. Kinetic | 60 (18) | 1.89 ± 0.7 | 4.9–7.3 | 89 (16) | 15 (10) | 1.60 ± 0.7 | 4.7–7.1 | 10 (1) | 100 (34) | 1.85 ± 0.6 | 5.1–7.1 | 100 (34) |
| e. Walking | 80 (24) | 2.25 ± 0.8 | 5.1–7.5 | 68 (17) | 72 (47) | 1.74 ± 0.7 | 4.3–7.6 | 26 (12) | – | – | – | – |
| 5. Trunk | 27 (8) | 1.37 ± 0.5 | 4.0–7.2 | – | 5 (3) | 1.33 | 4.1–7.0 | – | 9 (3) | 1.66 | 5.1–7.0 | – |
| 6. Action leg | 53 (16) | 1.12 | 4.2–6.9 | 44 (7) | 3 (2) | 1.0 | 4.3–7.4 | 0 (0) | 56 (19) | 1.37 ± 0.5 | 5.3–7.3 | 100 (19) |
| 7. Rest leg | 53 (16) | 1.31 ± 0.5 | 4.2–7.0 | 75 (12) | 45 (29) | 1.31 ± 0.5 | 4.1–7.2 | 31 (9) | 3 (1) | 1.0 | 5.2–7.3 | – (1) |
| 8. Standing | 53 (16) | 2.25 ± 0.7 | 4.6–7.3 | – | 5 (3) | 2.33 | 5.1–7.2 | – | 3 (1) | 1.0 | 5.1–7.1 | – (1) |
| *with overflow | 47 (14) | 3 (2) | ||||||||||
| 9. Spiral drawing | 50 (15) | 1.87 ± 0.6 | NA | 67 (10) | 15 (10) | 1.40 ± 0.5 | NA | 20 (2) | 100 (34) | 2.18 ± 0.8 | NA | 100 (34) |
| 10. Water pouring | 47 (14) | 1.71 ± 0.7 | NA | 71 (10) | 12 (8) | 1.25 ± 0.5 | NA | 25 (2) | 100 (34) | 2.12 ± 0.8 | NA | 100 (34) |
Item of the TRGRS are reported on the left, face tremor in the table is the average for each patient of face and jaw tremor. Tongue tremor was not observed. Items 10 and 11 are omitted as not rated in all patients
Percentages represent the prevalence of each item in the group (score > 1) and are approximated to the following unit if >0.4
The re-emergent item 4 b-c* indicates forward and lateral arm tremor appearing not earlier than 5 s from acquiring the posture. Standing *with overflow indicates spreading of tremor from affected arms to other body parts when standing. These supplementary items were not specifically rated as not applicable, but amplitude scores were reported in items 4* and 8
TRGRS scores are reported as mean ± SD (standard deviation). SD scores are not reported if n < 4. Side is coded as bilateral B versus unilateral predominant (TRGRS score one side being >50 % of the score of the controlateral side)
NA not applicable available