Table 4 Comparison of motor features in PD patients with and without pRBD

Tremor score

0.4 ± 0.4

0.2 ± 0.3

0.062

Non-tremor score

1.0 ± 0.5

1.0 ± 0.6

0.73

Tremor/non-tremor score

0.5 ± 0.4

0.4 ± 0.6

0.079

Bulbar (% of total UPDRS III)

10.3 ± 6.3

10.8 ± 10.2

0.66

Tremor (% of total UPDRS III)

12.3 ± 9.4

9.6 ± 13.8

0.087

Rigidity (% of total UPDRS III)

22.8 ± 12.5

21.6 ± 14.8

0.54

Bradykinesia (% of total UPDRS III)

40.4 ± 11.4

40.2 ± 15.5

0.71

Gait posture abnormality (% of total UPDRS III)

14.2 ± 9.9

17.8 ± 13.3

0.35

Axial score

11.0 ± 5.6

10.3 ± 6.2

0.65

Limb score

16.2 ± 7.7

13.8 ± 9.7

0.19

Axial/limb ratio

0.7 ± 0.2

0.9 ± 0.5

0.20