Table 5.

—ORs Describing the Risk of Malignancy by Nodal Characteristics

		Adjusted Model
Variable	Categories	OR (95% CI)	P Value
PET scan activity	Normal	Ref	…
	Increased	2.36 (0.81-6.83)	.11
Lymph node size on CT scan of the chest	< 10 mm	Ref	…
	10-20 mm	2.84 (1.07-7.51)	.0359a
	> 20 mm	26.61 (4.60-153.96)	.0002a

Adjusted models included both PET scan activity and lymph node size on CT scan of the chest. See Table 4 legend for expansion of abbreviation.

^aIndicates statistical significance using α of 0.05. Estimates were calculated using a GEE logistic regression model as described in the “Statistical Analysis” section.