Table 2.
The pathological types of the resected primary tumor and their T stages. No significant difference was found among the control group and treatment group at a 5% significance level. It showed covariate balance between control and treatment groups.
| Clinical characteristic | Treatment, with NSAIDa (n = 27) | Control, without NSAID (n = 17) | p-Value |
|---|---|---|---|
| Tumor pathology | |||
| Adenocarcinoma | 26 (96.3%) | 13 (76.5%) | 0.07 |
| Squamous cell carcinoma | 0 (0%) | 2 (11.8%) | 0.14 |
| Lymphoepithelioma-like carcinoma | 1 (3.7%) | 0 (0%) | 1.00 |
| Poorly differentiated carcinoma | 0 (0%) | 1 (5.9%) | 0.39 |
| Carcinoma, origin indeterminate | 0 (0%) | 1 (5.9%) | 0.39 |
| T stage | |||
| pT1a | 8 (29.6%) | 5 (29.4%) | 1.00 |
| pT1b | 11 (40.7%) | 6 (35.3%) | 0.97 |
| pT1c | 5 (18.5%) | 4 (23.5%) | 0.72 |
| pT2b | 2 (7.4%) | 1 (5.9%) | 1.00 |
| pT3 | 0 (0%) | 1 (5.9%) | 0.39 |
| pTmi | 1 (5.3%) | 0 (0%) | 1.00 |
aNSAID: Non-steroidal anti-inflammatory drugs.