Table 2.
Effects of moderators
| Variables | Coefficient* | SE | DOR | 95% CI of DOR | P ** | |
|---|---|---|---|---|---|---|
| Smoker proportion,% (>66.8 vs. ≤66.8) | −0.244 | 0.5283 | 0.78 | 0.00 | 644.74 | 0.7245 |
| Adenocarcinoma proportion, % (>82.85 vs. ≤82.85) | −0.093 | 0.4641 | 0.91 | 0.00 | 331.55 | 0.8739 |
| PD‐L1 (+), % (>37.15 vs. ≤37.15) | −1.270 | 0.5492 | 0.28 | 0.00 | 301.36 | 0.2599 |
*
Regression coefficient.
**
P‐value of random effect meta‐regression using maximum likelihood estimation (ML) between study variances and the weighted least squares of study size for regression model estimation.
Smoker proportion, % (1, >66.8 vs. 0, ≤66.8); Adenocarcinoma proportion, % (1, >82.85 vs. 0, ≤82.85); PD‐L1 (+), % (1, >37.15 vs. 0, ≤37.15).
CI, confidence interval; DOR, diagnostic odds ratio; SE, standard error.