Table 5. Multivariate logistic regression analysis of predictors for negative nodal diagnostic impact of PET scan.

Variables	OR (95% CI)	p value
Size
short axis	0.97 (0.59–1.60)	0.90
Location
hilar vs. mediastinal	5.75 (1.32–25.11)	0.01
PET scale
3 points vs. 4-points	3.21 (0.86–12.05)	0.08
Calcification
with vs. without	1.09 (0.20–6.00)	0.93