McGill Pain Questionnaire scores before and after CCK provocation testing
| Before CCK injection | After CCK injection | ||||||
| VAS | TWS | PRI | VAS | TWS | PRI | ||
| CCKPT1 positive | 5.2 (16.4) | 0.5 (1.6) | 0.9 (3.0) | 57.8 (23.4)1-150 | 6.0 (5.2)1-150 | 12.4 (13.0)1-150 | |
| CCKPT1 negative | 7.0 (21.7) | 0.6 (2.0) | 1.2 (4.4) | 9.2 (21.6) | 0.9 (2.1) | 1.8 (4.4) | |
| CCKPT2 positive | 5.2 (14.5) | 1.0 (2.7) | 3.1 (9.6) | 15.8 (26.2) | 1.4 (2.6) | 3.9 (9.1) | |
Results are expressed as mean (SD). Comparisons before and after CCK injection are made using a paired t test.
↵1-150 p<0.001.
VAS, visual analogue score; TWS, total word score; PRI, pain rating index.