Table 3.
Internal consistency and test–retest reliability of the SF-MPQ-2-CN
| Subscale | Number of items | Item number of original SF-MPQ-2 | T1 (n=144) mean±SD | T2 (n=41) mean±SD | Cronbach’s alpha (T1, T2) | ICC
|
|||
|---|---|---|---|---|---|---|---|---|---|
| ICC | 95% CI | p-Value | |||||||
| Continuous | 6 | 1, 5, 6, 8, 9, 10 | 25.68±12.60 | 21.31±7.87 | 0.896 | 0.859 | 0.909 | 0.829–0.951 | <0.001 |
| Intermittent | 6 | 2, 3, 4, 11, 16, 18 | 23.01±12.56 | 25.46±10.44 | 0.929 | 0.923 | 0.973 | 0.949–0.985 | <0.001 |
| Neuropathic | 6 | 7, 17, 19, 20, 21, 22 | 24.25±13.30 | 23.17±12.14 | 0.926 | 0.948 | 0.988 | 0.977–0.993 | <0.001 |
| Affective | 4 | 12, 13, 14, 15 | 16.11±10.02 | 18.51±8.20 | 0.916 | 0.917 | 0.952 | 0.911–0.975 | <0.001 |
| Total | 22 | 72.95±21.56 | 88.46±21.28 | 0.836 | 0.831 | 0.927 | 0.862–0.961 | <0.001 | |
Abbreviations: CI, confidence interval; ICC, intraclass correlation coefficient; SF-MPQ-2-CN, Chinese version of short-form McGill Pain Questionnaire-2; SD, standard deviation; T1, test; T2, retest.