Table 3.
Chronic postoperative pain in 6 months after operation
| Variables | Control group (n = 28) | Lidocaine group (n = 29) | p-value | Total |
|---|---|---|---|---|
| Number of people with CPSP | 4 | 4 | 1.00a | 8 |
| NRS | 2.00 ± 1.41 | 1.25 ± 0.50 | 0.37b | |
| Pain degree | ||||
| Mild | 3 | 4 | 7 (87.5%) | |
| Moderate | 1 | 0 | 1 (12.5%) | |
| Severe | 0 | 0 | 0 (0.0%) | |
| Location | 0.23a | |||
| Partial incision | 1 | 2 | 3 (37.5%) | |
| Chest wall | 3 | 2 | 5 (62.5%) | |
| Pain form | 0.11a | |||
| Spontaneous pain | 1 | 0 | 1 (12.5%) | |
| Stretch pain | 2 | 2 | 4 (50.0%) | |
| Cough pain | 2 | 1 | 3 (37.5%) | |
| Duration | 0.46a | |||
| Always | 0 | 1 | 1 (12.5%) | |
| Intermittent | 4 | 3 | 7 (87.5%) | |
| Analgesic use | 1.00a | |||
| Unused | 4 | 4 | 8 (100%) | |
| used | 0 | 0 | 0 (0.00%) | |
CPSP chronic postsurgical pain, NRS numerical rating scales
a Fisher exact test, b NStudent t-test