Table 7.
Univariate and multivariate logistic regression analyses of the training set for the EBUS-TBNA diagnosed benign cohort.
| Characteristics | Univariate | Multivariate | ||
|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Long-axis | 2.3 (1.55–3.41) | <0.001 | 2.05 (1.14–3.7) | 0.017 |
| Short-axis | ||||
| ≤1 | Reference | |||
| >1 | 2.66 (1.25–5.65) | 0.011 | 1.2 (0.4–3.61) | 0.740 |
| Long-axis/short-axis ratio | ||||
| <1.5 | Reference | |||
| ≥1.5 | 0.83 (0.39–1.76) | 0.63 | ||
| Number of passes per node | 1.39 (1.03–1.87) | 0.032 | 1.0 (0.67–1.48) | 0.998 |
| Echo intensity | ||||
| Hypoechoic | Reference | |||
| Hyperechoic | 1.16 (0.12–11.4) | 0.899 | ||
| Isoechoic | 2.32 (0.38–14.28) | 0.364 | ||
| Echogenicity | ||||
| Homogeneous | Reference | |||
| Heterogeneous | 6.07 (3.05–12.07) | <0.001 | 5.46 (2.33–12.78) | <0.001 |
| Margin | ||||
| Indistinct | Reference | |||
| Distinct | 0.32 (0.11–0.96) | 0.042 | 0.28 (0.08–1.04) | 0.057 |
| Blood flow | ||||
| Lacking | Reference | |||
| Rich | 1.54 (0.69–3.43) | 0.286 | ||
| Fusion | ||||
| Absent | Reference | |||
| Present | 3.56 (1.73–7.33) | 0.001 | 1.07 (0.39–2.93) | 0.902 |
| Central hilar structure | ||||
| Present | Reference | |||
| Absent | 14.84 (6.49–33.92) | <0.001 | 13.11 (4.74–36.27) | <0.001 |