Table 2.
Multivariate logistic regression for influencing factors of the availability of PC clinical trial results.
| Trial characteristics | OR (95% CI) | P value |
|---|---|---|
| Interventional vs. observational | 2.591 (1.297, 5,175) | 0.007 |
| Completed vs. terminated or suspended | 2.624 (1.796, 3.834) | <0.001 |
| Intervention | ||
| 1. Procedure | 1.534 (0.564, 4.175) | 0.402 |
| 2. Device vs. unknown | 1.691 (0.484, 5.902) | 0.410 |
| 3. Drug vs. unknown | 3.758 (1.299, 10.980) | 0.015 |
| 4. Radiation vs. unknown | 2.763 (0.771, 9.905) | 0.119 |
| 5. Biological treatment vs. unknown | 2.780 (0.863, 8.956) | 0.087 |
| 6. Other treatment vs. unknown | 1.486 (0.550, 4.012) | 0.435 |
| Phase | ||
| 1. II vs. I | 2.512 (1.630, 3.873) | <0.001 |
| 2. III vs. I | 1.594 (0.804, 3.161) | 0.182 |
| 3. IV vs. I | 0.579 (0.130, 2.587) | 0.475 |
| 4. Unknown/not available vs. phase I | 2.982 (1.465, 6.069) | 0.003 |
| Clinical vs. Non-clinical | 1.318 (0.835, 2.081) | 0.235 |
| Centers | ||
| 1. Multiple vs. single | 1.437 (0.981, 2.103) | 0.062 |
| 2. Unknow vs. single | 0.902 (0.452, 1.802) | 0.771 |
| Median trial duration in years (IQR) | 1.070 (1.000, 1.145) | 0.050 |
Bold text indicated the statistical difference of the P value between groups.