Table 4.

—Univariate Analysis of EBUS-TBNA Characteristics by Diagnostic Yield per Lymph Node Sampled

EBUS-TBNA Characteristic	OR (95% CI)	P Value
Needle gauge (21 vs 22)	1.3 (1.1-1.6)	.004
Age (< 63 vs ≥ 63 y)	0.9 (0.8-1.1)	.42
Number of sites sampled
1 (reference)		…
2	0.4 (0.3-0.5)	< .001
3	0.3 (0.2-0.4)	< .001
4	0.2 (0.1-0.2)	< .001
≥ 5	0.2 (0.1-0.2)	< .001
Sex (female or male)	1.2 (1.0-1.4)	.031
Ethnicity (white or nonwhite)	1 (0.8-1.2)	.90
CT scan short-axis node size, cm
< 1 (reference)		…
1-2	3.3 (2.8-4.0)	< .001
2-3	7.6 (5.7-10.2)	< .001
≥ 3	9.3 (6.4-13.3)	< .001
Lymph nodes sampled
Subcarinal (reference)		…
Left hilar	0.8 (0.6-1.0)	.05
Right hilar	0.8 (0.7-1.1)	.18
Superior mediastinum/aortic  (not including station 4)	2.2 (1.6-3.0)	< .001
Low right paratracheal	1.2 (0.9-1.5)	.14
Low left paratracheal	0.8 (0.6-1.0)	.07
ROSE (no vs yes)	0.7 (0.5-0.8)	< .001
Smoking status (ever vs never)	1.1 (0.9-1.3)	.59
Comorbid conditions present  (no vs yes)	0.7 (0.6-0.8)	< .001
Average number of passes per node	0.9 (0.9-1.0)	.07

See Table 2 legend for expansion of abbreviations.