. Author manuscript; available in PMC: 2017 Aug 30.

Published in final edited form as: Clin Lung Cancer. 2016 Jul 22;18(1):e21–e26. doi: 10.1016/j.cllc.2016.07.005

Table 1.

Patient Characteristics

Variable	≤70 Years Old (n = 98)	>70 Years Old (n = 25)	P
Male Sex	38 (39)	18 (72)	.006
Race			.411
African-American	54 (55)	11 (44)
Caucasian	40 (41)	12 (48)
Other	4 (4)	2 (8)
Stage			.084
IIB	3 (3)	2 (8)
IIIA	60 (61)	19 (76)
IIIB	35 (36)	4 (16)
Histology			.481
Squamous cell carcinoma	44 (45)	14 (56)
Adenocarcinoma	39 (40)	11 (44)
Undifferentiated NSCLC	12 (12)	0 (0)
Large cell carcinoma	3 (3)	0 (0)
Smoker	95 (97)	22 (88)	.098
COPD	34 (35)	7 (28)	.692

Data are presented as n (%) except where otherwise stated.

Abbreviations: COPD = chronic obstructive pulmonary disease; NSCLC = non–small-cell lung cancer.