No pain > no pain | 17 | Moderate > severe | 2 |
No pain > mild | 1 | Severe > none | 24 |
No pain > moderate | 2 | Severe > mild | 18 |
Mild > none | 15 | Severe > moderate | 15 |
Mild > mild | 2 | Severe > severe | 14 |
Moderate > none | 17 | Severe > variable | 2 |
Moderate > mild | 16 | Variable > variable | 4 |
Moderate > moderate | 7 | Variable > none | 1 |