Table 3.
EBUS-TBNA Characteristic | OR (95% CI) | P Value |
Needle gauge (21 vs 22) | 1.1 (0.9-1.3) | .56 |
Age (< 63 vs ≥ 63 y) | 1.1 (1.0-1.3) | .17 |
Number of sites sampled | ||
1 (reference) | … | |
2 | 0.7 (0.5-0.9) | .002 |
3 | 0.7 (0.5-0.9) | .001 |
4 | 0.3 (0.2-0.4) | < .001 |
≥ 5 | 0.5 (0.4-0.7) | < .001 |
Sex (male or female) | 1.3 (1.1-1.5) | .002 |
Ethnicity (white or nonwhite) | 0.7 (0.6-0.9) | .002 |
CT scan short-axis node size, cm | ||
< 1 (reference) | … | |
1-2 | 1.5 (1.3-1.8) | < .001 |
2-3 | 3.1 (2.3-4.1) | < .001 |
≥ 3 | 3.7 (2.6-5.3) | < .001 |
Lymph nodes sampled | ||
Subcarinal (reference) | … | |
Left hilar | 0.9 (0.7-1.2) | .39 |
Right hilar | 0.8 (0.7-1.0) | .10 |
Superior mediastinum/aortic (not including station 4) | 1.7 (1.3-2.3) | .001 |
Low right paratracheal | 1.1 (0.9-1.4) | .26 |
Low left paratracheal | 1.1 (0.9-1.4) | .45 |
ROSE (no vs yes) | 1.0 (0.9-1.2) | .80 |
Smoking status (ever vs never) | 1.3 (1.1-1.5) | .003 |
Comorbid conditions present (no vs yes) | 0.6 (0.6-0.7) | < .001 |
See Table 2 legend for expansion of abbreviations.