Table 2.

BW cytology, BW sequencing, and histological classification by the characteristics of lung lesions in patients with early-stage lung cancer.

	Location				Size			Bronchus sign			Necrosis
	Inner	Mid	Outer	P	≥3cm	<3cm	P	Yes	No	P	Yes	No	P
Positivity of BW cytology and BW sequencing, number of patients (%)
cpsp (n = 22)	8 (53.3)	10 (19.2)	4 (8.5)	0.014*	19 (33.9)	3 (5.2)	0.002*	21 (22.3)	1 (5.0)	0.196*	18 (40.9)	4 (5.7)	<0.001*
cnsp (n = 20)	2 (13.3)	12 (23.1)	6 (12.8)	0.493*	13 (23.2)	7 (12.1)	0.230*	19 (20.2)	1 (5.0)	0.198*	15 (34.1)	5 (7.1)	0.003*
cpsn (n = 11)	3 (20.0)	5 (9.6)	3 (6.4)	0.391*	7 (12.5)	4 (6.9)	0.530*	10 (10.6)	1 (5.0)	0.689*	4 (9.1)	7 (10.0)	>0.999*
cnsn (n = 61)	2 (13.3)	25 (48.1)	34 (72.3)	0.050*	17 (30.4)	44 (75.9)	0.010*	44 (46.8)	17 (85.0)	0.123*	7 (15.9)	54 (77.1)	<0.001*
Sensitivity of BW cytology and BW sequencing, %
Cytology	73.3	28.8	14.9	<0.001	46.4	12.1	<0.001	33.0	10.0	0.056	50.0	15.7	<0.001
Seqencing	66.7	42.3	21.3	0.004	57.1	17.2	<0.001	42.6	10.0	0.005	75.0	12.9	<0.001
Cytology+Sequencing	86.7	51.9	27.7	<0.001	69.6	24.1	<0.001	53.2	15.0	0.002	84.1	22.9	<0.001
Histological classification, number of patients (%)
ADC	11 (73.3)	36 (69.2)	29 (61.7)	0.964#	32 (57.1)	44 (75.9)	0.125#	59 (62.8)	17 (85.0)	0.037#	24 (31.6)	52 (68.4)	0.038#
SQC	4 (26.7)	12 (23.1)	11 (23.4)		16 (28.6)	11 (19.0)		26 (27.6)	1 (5.0)		15 (55.6)	12 (44.4)
SCLC	0 (0.0)	4 (7.7)	7 (14.9)		8 (14.3)	3 (5.2)		9 (9.6)	2 (10.0)		5 (45.5)	6 (54.5)

BW = bronchial washing; cpsp = cytology positive / sequencing positive; cnsp = cytology negative / sequencing positive; cpsn = cytology positive / sequencing negative; cnsn = cytology negative / sequencing negative; ADC = adenocarcinoma; SQC = squamous cell carcinoma; SCLC = small cell carcinoma.

The numbers in parentheses represent the percentage of patients relative to the total number of patients in that column.

^⁎vs. total.

^#ADC vs. SQC.