Table 2 Proportion of patients reporting significant pain variability at each time point

Eligible respondents reporting significant pain variability^a: n (%)

227 (32)

163 (26)

126 (23)

129 (27)

114 (30)

Average pain intensity in past 6 months (0-10NRS)

4.7 (1.7)

4.6 (1.8)

4.5 (1.6)

4.4 (1.5)

4.9 (1.9)

Worst pain intensity in past 6 months (0-10NRS)

7.6 (1.6)

7.5 (1.5)

7.3 (1.5)

7.1 (1.5)

7.6 (1.6)

Eligible respondents reporting no significant pain variability: n (%)

493 (68)

462 (74)

433 (77)

336 (72)

260 (70)

Average pain intensity in past 6 months (0-10NRS)

3.9 (2.3)

3.5 (2.5)

3.9 (2.6)

3.5 (2.7)

3.8 (2.5)

Worst pain intensity in past 6 months (0-10NRS)

4.1 (2.3)

3.7 (2.4)

4.1 (2.6)

3.8 (2.7)

4.1 (2.5)

Ineligible respondents^b: n (%)

41 (5)

42 (6)

40 (7)

31 (6)

30 (7)

Missing: n (%)

0 (0)

12 (2)

11 (2)

10 (2)

6 (1)