Table 1. The sex, age, and histological subtypes of lung cancer between the conventional bronchoscopy and endobronchial ultrasound periods.
| Total N = 3712 | Conventional bronchoscopy period N = 1185 | Endobronchial ultrasound period N = 2527 | P value | |
|---|---|---|---|---|
| Sex | ||||
| Male | 2329 (62.7) | 785 (66.2) | 1544 (61.1) | 0.003 |
| Female | 1383 (37.3) | 400 (33.8) | 983 (38.9) | |
| Age | 64.2 ±12.7 | 65.6±12.6 | 63.4±12.7 | <0.001 |
| Histology | ||||
| Adenocarcinoma | 2204 (59.4) | 598 (50.5) | 1606 (63.6) | <0.0001 |
| Squamous cell carcinoma | 670 (18.0) | 238 (20.1) | 432 (17.1) | 0.028 |
| Small cell lung cancer | 343 (9.2) | 120 (10.1) | 223 (8.8) | 0.202 |
| Large cell carcinoma | 89 (2.4) | 19 (1.6) | 70 (2.8) | 0.029 |
| Adenocarcinoma in situ | 41 (1.1) | 0 (0) | 41 (1.6) | <0.0001 |
| Non-small-cell lung carcinoma | 96(2.6) | 59 (5.0) | 37 (1.5) | <0.0001 |
| Metastatic lung tumor | 269 (7.2) | 151 (12.7) | 118 (4.7) | <0.0001 |