Table S1. Comparison of surgical and SBRT groups before and after propensity matching on demographics.
| Variable | P value | |
|---|---|---|
| Before propensity matching | After propensity matching* | |
| Age at diagnosis | 0.2080 | 0.8840 |
| Gender | 0.9217 | 0.7055 |
| Race | 0.9739 | 1.0000 |
| Education | 0.1590 | 0.4795 |
| Smoking status | 0.1086 | 0.3173 |
| Survey completed by proxy | 0.7357 | 0.5271 |
| COPD/emphysema/asthma | <0.0001 | 0.3173 |
| Angina pectoris/CAD | 0.0108 | 0.4797 |
Before propensity matching, n=184 (156 surgery, 28 SBRT); After propensity matching, n=44 (22 surgery, 22 SBRT). *, matched on age at diagnosis, gender, race, education, smoking status, whether the baseline survey was completed by proxy, and presence of COPD/emphysema/asthma, and angina pectoris/CAD. COPD, chronic obstructive pulmonary disease; CAD, coronary artery disease; PCS, Physical Component Summary; MCS, Mental Component Summary; SBRT, stereotactic body radiation therapy.