Table IV.
Comparison of the detection rate of fiberoptic bronchoscopy combined with LCT among the four groups (%).
| Fiberoptic bronchoscopy combined with LCT | Sensitivitya | Specificity | Positive predictive value | Negative predictive value | False positive rate | False negative rate |
|---|---|---|---|---|---|---|
| Group A (BWC) | 86.17% (193/224) | 59.62% (31/52) | 90.19% (193/214) | 50.00% (31/62) | 40.38% (21/52) | 13.84% (31/224) |
| Group B (BAL) | 87.13% (149/171) | 60.61% (20/33) | 91.98% (149/162) | 47.62% (20/42) | 39.39% (13/33) | 12.87% (22/171) |
| Group C (EBUS-TBNA) | 94.81% (146/154) | 84.85% (28/33) | 96.69% (146/151) | 77.78% (28/36) | 15.15% (5/33) | 5.19% (8/154) |
| Group D (TBLB) | 88.54% (170/192) | 57.14 (24/42) | 90.43% (170/188) | 52.17% (24/46) | 42.86% (18/42) | 11.46% (22/192) |
| χ2 | 7.642 | 7.707 | 6.118 | 8.094 | 6.634 | 7.642 |
| P-value | 0.054 | 0.052 | 0.106 | 0.044 | 0.085 | 0.054 |
a
Detected sensitivity/detection rate = the number of cases successfully diagnosed with lung cancer through pathology by fiberoptic bronchoscopy combined with LCT within the group/the number of cases pathologically diagnosed with lung cancer within the group ×100%. LCT, liquid-based cytology test; BWC, bronchoscopic washing cultures; BAL, bronchoalveolar lavage; EBUS-TBNA, endobronchial ultrasound-guided transbronchial needle aspiration; TBLB, transbronchial lung biopsy.