Table 3. Logistic regression analysis of factors influencing the diagnostic yield of conventional bronchoscopy.
| Variable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | p-value | OR (95% CI) | p-value | |
| Sex | ||||
| Male | 1.09 (0.55–2.16) | 0.801 | 0.73 (0.29–1.84) | 0.503 |
| Female | ||||
| Age | 0.96 (0.94–0.99) | 0.005 | 0.97 (0.94–1.01) | 0.091 |
| Etiology | ||||
| Malignant | ||||
| Benign | 4.61 (2.22–9.54) | <0.001 | 4.91 (1.76–13.72) | 0.002 |
| Size, cm | ||||
| ≤3 | ||||
| >3 | 2.3 (1.17–4.37) | 0.015 | 1.32 (0.52–4.94) | 0.565 |
| Distance from pleura, cm | ||||
| ≤2 | ||||
| >2 | 0.96 (0.30–1.91) | 0.556 | 1.53 (0.47–4.94) | 0.478 |
| Cavity | ||||
| Presence | 4.35 (1.56–12.15) | 0.005 | 1.14 (0.27–4.82) | 0.861 |
| Absence | ||||
| Bronchus sign | ||||
| Exposed type | 19.9 (6.56–60.46) | <0.001 | 27.95 (7.56–103.32) | <0.001 |
| Unexposed type | 0.87 (0.27–2.82) | 0.814 | 1.77 (0.45–6.94) | 0.414 |
| Absent | ||||
OR: odds ratio; CI: confidence interval.