Table 4.

Univariate and multivariate analysis of factors predicting the acquisition of diagnostic samples for mediastinal and hilar adenopathies by TBNA.

Factors	Diagnostic samples	Univariate analysis	Multivariate analysis
		p-value	OR (95% CI)	p-value
Sex
Male	291/422 (69.0%)	0.9	-	-
Female	106/154 (68.8%)
Age
< 60 years	191/275 (69.5%)	0.7	-	-
≥ 60 years	202/297 (68.0%)
Type of disease
Malignant	297/413 (71.9%)	0.07	1.2 (0.7-2.0)	0.3
Benign	101/167 (60.5%)
Type of needle
Cytology	291/414 (70.3%)	0.1	1.1 (0.7-1.9)	0.4
Histology	107/166 (64.5%)
Lymph node station
Right paratracheal	161/234 (68.8%)	0.3	-	-
Subcarinal	106/147 (72.1%)
Left paratracheal	36/50 (72.0%)
Others	34/47 (72.3%)
Combination (2 or more)	61/102 (60.0%)
Lymph node size
< 20 mm	159/274 (58.0%)	0.0001	2.2 (1.4-3.2)	0.0001
≥ 20 mm	239/306 (78.1%)
Indirect sign
No	246/391 (62.9%)	0.0001	1.7 (1.1-2.6)	0.02
Yes	152/189 (80.4%)

CI: confidence interval