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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: J Am Coll Surg. 2013 Dec 12;218(3):439–449. doi: 10.1016/j.jamcollsurg.2013.12.005

Table 4.

Baseline Characteristics of Patients, Stratified by Age Group and Intervention

Characteristic Patients < 70 y Patients ≥ 70 y
Definitive
radiation
therapy (n =
118)
Pneumonectom
y (n = 3,437)
p Value Definitive
radiation
therapy (n =
318)
Pneumonectom
y (n = 1,496)
p Value
Age, y 65 (60,67) 61 (54,65) < 0.001 79 (74,82.8) 74 (72,77) < 0.001
Sex, n (%) 0.140 < 0.001
 Female 43 (36.4) 1020 (29.7) 141 (44.3) 456 (30.5)
 Male 75 (63.6) 2417 (70.3) 177 (55.7) 1040 (69.5)
Race, n (%) < 0.001 < 0.001
 White 85 (72) 2940 (85.5) 251 (78.9) 1346 (90)
 Black 22 (18.6) 342 (10) 35 (11) 82 (5.5)
 Other 11 (9.3) 155 (4.5) 32 (10.1) 68 (4.5)
Laterality, n (%) 0.360 < 0.001
 Left 58 (49.2) 1908 (55.5) 144 (45.3) 858 (57.4)
 Right 60 (50.8) 1525 (44.4) 174 (54.7) 636 (42.5)
Disease stage, n
(%)
< 0.001 < 0.001
 Stage I 80 (67.8) 1451 (42.2) 242 (76.1) 705 (47.1)
 Stage II 38 (32.2) 1986 (57.8) 76 (23.9) 791 (52.9)
Marital status, n
(%)
< 0.001 < 0.001
 Married 52 (44.1) 2247 (65.4) 147 (46.2) 978 (65.4)
 Not married 65 (55.1) 1101 (32) 161 (50.6) 496 (33.2)
 Unknown 1 (0.8) 89 (2.6) 10 (3.1) 22 (1.5)
Radiation
therapy, n (%)
118 (100) 796 (23.2) < 0.001 318 (100) 198 (13.2) < 0.001