Table 1 Baseline patient characteristics according to the diagnostic yields of bronchial brushing and washing in patients with peripheral lung cancer during non-guided flexible bronchoscopy.
Variables | No. (%) n = 166 | Diagnostic yield of brushing | Diagnostic yield of washing | ||
|---|---|---|---|---|---|
No. (%) | p value | No. (%) | p value | ||
Age | 0.471 | 0.823 | |||
< 70 | 89 (53.6) | 31 (34.8) | 42 (47.2) | ||
≥ 70 | 77 (46.4) | 31 (40.3) | 35 (45.5) | ||
Gender | 0.351 | 0.575 | |||
Men | 122 (73.5) | 43 (35.2) | 55 (45.1) | ||
Women | 44 (26.5) | 19 (43.2) | 22 (50.0) | ||
Smoking | 0.643 | 0.948 | |||
Never | 50 (30.1) | 20 (40.0) | 23 (46.0) | ||
Current + Former | 116 (69.9) | 42 (36.2) | 54 (46.6) | ||
Final diagnosis | 0.983 | 0.906 | |||
ADC | 118 (71.1) | 43 (36.4) | 52 (44.1) | ||
SQC | 32 (19.3) | 15 (46.9) | 20 (62.5) | ||
Others NSCC | 8 (4.8) | 0 (0) | 1 (12.5) | ||
SCC | 8 (4.8) | 4 (50.0) | 4 (50.0) | ||
Tumor size (mm) | <0.001 | 0.001 | |||
<30 | 50 (30.1) | 7 (14.0) | 12 (24.0) | ||
30 ≤ < 70 | 99 (59.6) | 44 (44.4) | 55 (55.6) | ||
≥70 | 17 (10.2) | 11 (64.7) | 10 (58.8) | ||
Location of tumor | 0.133 | 0.158 | |||
BUL + RML | 98 (59.0) | 32 (32.7) | 41 (41.8) | ||
BLL | 68 (41.0) | 30 (44.1) | 36 (52.9) | ||
Bronchus sign | 0.001 | <0.001 | |||
Yes | 93 (56.0) | 45 (48.4) | 58 (62.4) | ||
No | 73 (44.0) | 17 (23.3) | 19 (26.0) | ||
SUVmax (n = 157) | 0.082 | 0.026 | |||
<6.00 | 39 (24.8) | 8 (20.5) | 11 (28.2) | ||
6.00 ≤ < 12 | 73 (46.5) | 33 (45.2) | 39 (53.4) | ||
≥12.00 | 45 (28.7) | 18 (40.0) | 24 (53.3) | ||
Final stage | 0.01 | 0.013 | |||
I–II | 55 (33.1) | 13 (23.6) | 18 (32.7) | ||
III–IV | 111 (66.9) | 49 (44.1) | 59 (53.2) | ||
