Table 2: Numerical pain rating scale.

Participant

Baseline

7th Visit

3-month

NPRS

NPRS

NPRS

1

5

2a

n/a

2

6

1a

1a

3

5

5

n/a

4

7

2a

1a

5

5.5

4a

6

6

6

5

6

7

7

3a

2a

Median

6

3

2

Change by group

p = 0.027b

p = 0.115

Effect size

0.589

0.433

Abbreviations: NPRS, Numerical Pain Rating Scale.


aValues exceeding MCID from baseline; bSignificant difference between group baseline and 7th visit scores (p < 0.05)