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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Thorac Oncol. 2015 Dec;10(12):1776–1784. doi: 10.1097/JTO.0000000000000680

Table 4.

Baseline characteristics, treatment-related variables, and long-term outcomes in propensity score matched patients with clinical stage I NSCLC who received sublobar resection (wedge resection or segmentectomy) vs. SBRT.

Surgery (n=4555) SBRT (n=4555) P
value
Age (years) 73.7 ± 8.2 73.8 ± 8.5 0.751

Female Gender 2504 (55.0%) 2556 (56.1%) 0.282

Caucasian 4166 (91.5%) 4164 (91.4%) 0.940

Urban Location 3214 (70.6%) 3193 (70.1%) 0.646

Income >$35000/year 3119 (68.5%) 3139 (68.9%) 0.651

Charlson/Deyo Score 0 2525 (55.4%) 0 2459 (54.0%) 0.366
1 1378 (30.3%) 1 1414 (31.0%)
2 652 (14.3%) 2 682 (15.0%)

Tumor Size (mm) 21.8 ± 9.4 21.9 ± 8.6 0.481

Clinical T stage T1 3641 (79.9%) T1 3647 (80.1%) 0.896
T2 914 (20.1%) T2 908 (19.9%)

Facility Reporting Case Nonacademic 2674 (58.7%) Nonacademic 2726 (59.8%) 0.268
Academic 1881 (41.3%) Academic 1829 (40.2%)

Type of operation Wedge 3745 (82.2%)
Segment 810 (17.8%)

Chemotherapy administered 394 (8.7%) 187 (4.2%) <0.001

Radiation administered 360 (7.9%) 4555 (100%) <0.001

Median radiation dose (cGy) 5940 (n=256) 5400 (n=4555)

Median Survival (months) 48.3 ± 1.2 33.9 ± 0.9 <.001