Table 5.
—Multivariate Hierarchical Logistic Regression Model for Diagnostic Yield Per Patient
| All Patients (n = 891) |
Patients With PET Scans (n = 379) |
|||||
| Variable | OR | 95% CI | P Value | OR | 95% CI | P Value |
| Hospital volume | 1.003 | 1.000-1.006 | .037 | 1.003 | 0.999-1.007 | .14 |
| Sex: male vs female | 0.72 | 0.5-1.05 | .08 | 0.75 | 0.42-1.35 | .26 |
| Smoking status: smoker vs never smoker | 1.55 | 1.02-2.34 | .042 | 1.59 | 0.79-3.18 | .15 |
| Number of LN sites: > 2 vs ≤ 1 | 0.57 | 0.38-0.85 | .015 | 0.55 | 0.3-1.04 | .06 |
| On-site cytologic evaluation: yes vs no | 1.15 | 0.62-2.12 | .56 | 1.39 | 0.26-7.36 | .48 |
| Anesthesia: deep/general vs moderate | 1.11 | 0.62-2.01 | .66 | 1.06 | 0.19-5.95 | .90 |
| Largest LN, cm | ||||||
| ≤ 1 vs < 1-2 (reference) | 0.51 | 0.34-0.77 | .003 | 0.41 | 0.23-0.75 | .006 |
| < 2-3 vs < 1-2 | 2.49 | 1.61-3.85 | < .001 | 2.27 | 1.07-4.78 | .034 |
| > 3 vs < 1-2 | 3.61 | 2.17-6.00 | < .001 | 3.37 | 1.26-8.98 | .019 |
| Linear EBUS-TBNA biopsy: yes vs no | 2.42 | 0.91-6.44 | .07 | 0.67 | 0.04-10.22 | .67 |
| PET scan: positive vs negative | 3.12 | 1.39-7.01 | .018 | |||