Table 2.

Demographic and clinical information for patients with N1-positive NSCLC undergoing surgical resection vs. adequate definitive chemoradiation - Continuous variables are displayed as mean +/− standard deviation. Categorical variables are displayed as number (% total).

Patient Characteristics	Definitive chemoradiation n= 3,138		Surgical resection n= 9,719	p-Value
Age at diagnosis (years)	69.4 +/− 9.5		66.0 +/− 10.1	<0.001
Male Gender	1,793 (57%)		5,306 (55%)	0.01
Caucasian	2,741 (87%)		8,587 (88%)	0.13
Academic Center	645 (21%)		3,283 (34%)	<0.001
Annual Income > $35,000	1,811 (60%)		6,069 (66%)	<0.001
Urban Population Area	1,844 (59%)		6,111 (63%)	<0.001
Charlson/Deyo Score	0	1,864 (59%)	5,411 (56%)	<0.001
	1	895 (28%)	3,226 (33%)
	2	379 (12%)	1,082 (11%)
Tumor Size (mm)	39.9 +/− 28.1		39.8 +/− 36.8	0.84
AJCC Clinical T Stage	1	937 (30%)	3,692 (38%)	<0.001
	2	2,201 (70%)	6,027 (62%)
AJCC Clinical Stage Group	2A	1,090 (35%)	4,232 (43%)	<0.001
	2B	1,963(63%)	5,180 (53%)
	2 NOS	85 (3%)	307 (3%)
Type of Resection	None	3,138 (100%)	0 (n/a)	<0.001
	Wedge	0 (n/a)	612 (6%)
	Lobectomy	0 (n/a)	7,657 (79%)
	Pneumonectomy	0 (n/a)	1,450 (15%)
AJCC Pathologic T Stage	0/IS	n/a	47 (<1%)	n/a
	1	n/a	2,922 (30%)
	2	n/a	5,279 (54%)
	3	n/a	398 (4%)
	4	n/a	298 (3%)
	X	n/a	775 (8%)
AJCC Pathologic N Stage	0	n/a	1,758 (18%)	n/a
	1	n/a	6,127 (63%)
	2	n/a	1,006 (10%)
	3	n/a	17 (<1%)
	X	n/a	811 (8%)
Any radiotherapy	3,138 (100%)		1,772 (18%)	<0.001
Mean total radiation dose (cGy)	6,669 +/− 3,695		5,423 +/− 2533	<0.001
Chemotherapy	None	n/a	4,613 (47%)	<0.001
	Single Agent	320 (10%)	239 (2%)
	Multi-agent	2,509 (80%)	4,328 (45%)
	Chemo NOS	309 (10%)	539 (6%)