Table 3

Comparison of UPDRS part IV sub-scores pre-operatively and post-operatively

  • UPDRS IV

  • Baseline

  • Mean (SD)

  • Median

  • Range

  • Follow-up ON Stim

  • Mean (SD)

  • Median

  • Range

  • Improvement from baseline to follow-up ON stim

  • Mean (SD)

  • Median

  • Range

  • (p value)

  • Summary data

  • Dyskinesia Duration

  • 0=None

  • 1=1–25% of day

  • 2=26–50% of day

  • 3=51–75% of day

  • 4=76–100% of day

  • 1.49 (0.85)

  • 1

  • 0 to 4

  • 0.81 (0.84)

  • 1

  • 0 to 4

  • 0.69 (0.9)

  • 1

  • 3 to −1

  • (p<0.0001)

  • 41 improved

  • 25 unchanged

  • 4 worse

  • Dyskinesia Disability

  • 0=not disabling

  • 1=mildly disabling

  • 2=moderately disabling

  • 3=severely disabling

  • 4=completely disabling

  • 1.11 (1.11)

  • 1

  • 0 to 4

  • 0.44 (0.81)

  • 0

  • 0 to 3

  • 0.65 (1.2)

  • 0

  • 3 to −2

  • (p=0.0003)

  • 31 improved

  • 31 unchanged

  • 8 worsened

  • Dyskinesia Pain

  • 0=No painful dyskinesias

  • 1=slight

  • 2=moderate

  • 3=marked

  • 4=severe

  • 0.55 (0.93)

  • 0

  • (0 to 3)

  • 0.32 (0.72)

  • 0

  • (0 to 3)

  • 0.23 (1.2)

  • 0

  • 3 to −3

  • (p=0.05)

  • Improved=19

  • Unchanged=43

  • Worsened=8

Early morning dystonia

  • No=35

  • Yes=40

  • No=46

  • Yes=27

  • (p=0.06)

  • Improved=24

  • Unchanged=35

  • Worsened=12

Predictable ‘offs’

  • No=4

  • Yes=70

  • No=37

  • Yes=36

  • (p<0.0001)

  • Improved=33

  • Unchanged=38

  • Worsened=0

Unpredictable “offs”

  • No=22

  • Yes=52

  • No=57

  • Yes=16

  • (p<0.0001)

  • Improved=35

  • Unchanged=34

  • Worsened=2

Sudden “offs”

  • No=34

  • Yes=40

  • No=62

  • Yes=11

  • (p<0.0001)

  • Improved=30

  • Unchanged=37

  • Worsened=4

  • Proportion time off

  • 0=None

  • 1=1–25% of day

  • 2=26–50% of day

  • 3=51–75% of day

  • 4=76–100% of day

  • 1.82 (0.72)

  • 2

  • 1 to 4

  • 0.77 (0.81)

  • 1

  • 0 to 3

  • 1.1 (1.1)

  • 1

  • 4 to −2

  • (p<0.0001)

  • Improved=49

  • Unchanged=19

  • Worsened=3