Table 2 Changes in overall burden of pain over the last month according to Numeric Rating Scale
Overall burden of pain (NRS) | Grading of overall burden of pain | Overall burden of pain initial assessment N (%) | Mean overall burden of pain - initial assessment (Cl) | Mean change in overall burden of pain at two-year assessment (Cl) | p-value# |
|---|---|---|---|---|---|
0 | No burden of pain | 2 (2) | 0 | 0.5 (−5.85–6.85) | 0.5 |
1 | Mild burden of pain | 10 (10) | 2.58 (2.18–2.98) | −2.32 (−3.27- -1.36) | 0.003 |
2 | 9 (9) | ||||
3 | 6 (6) | ||||
4 | 13 (13) | ||||
5 | Moderate burden of pain | 16 (16) | 5.92 (5.63–6.21) | −0.97 (−1.63 - - 0.32) | < 0.001 |
6 | 9 (9) | ||||
7 | 13 (13) | ||||
8 | Severe burden of pain | 10 (10) | 9.2 (8.72–9.52) | −5.60 (−6.83 - - 4.37) | < 0.001 |
9 | 2 (2) | ||||
10 | 13 (13) |