Table 1:
Patient and tumor-related factors, all patients
| All Patients (n=1687) |
Lobectomy (n=1354) |
Sublobar Resection (n=333) |
P value | |
|---|---|---|---|---|
|
Patient-Related
Factors | ||||
| Age (year) | 66.9± 10.0 | 66.3± 10.0 | 69.6±9.6 | <0.001 |
| Male gender | 737 (43.7%) | 579 (42.8%) | 158 (47.4%) | 0.138 |
| Insured | 1622 (97.9%) | 1300 (97.8%) | 322 (98.5%) | 0.597 |
| Race | ||||
| Caucasian | 1527 (90.5%) | 1221 (90.2%) | 306 (91.9%) | 0.553 |
| African American | 108 (6.4%) | 91 (6.7%) | 17 (5.1%) | |
| Other | 52 (3.1%) | 42 (3.1%) | 10 (3.0%) | |
| Comorbidity | ||||
| COPD | 731 (43.7%) | 538 (39.7%) | 193 (58.0%) | <0.001 |
| Congestive Heart Failure (CHF) | 731 (43.3%) | 89 (6.6%) | 28 (8.4%) | 0.289 |
| Coronary Artery Disease (CAD) | 117 (6.9%) | 279 (20.6%) | 89 (26.7%) | 0.019 |
| Diabetes | 368 (21.8%) | 213 (15.7%) | 59 (17.7%) | 0.424 |
| Peripheral Vascular Disease | 155 (9.2%) | 122 (9.0%) | 33 (9.9%) | 0.687 |
| Psychiatric History | 127 (7.5%) | 105 (7.8%) | 22 (6.6%) | 0.552 |
| Substance Abuse | 92 (5.5%) | 74 (5.5%) | 18 (5.4%) | 1.000 |
| Chemotherapy | 241 (14.7%) | 206 (15.6%) | 35 (10.9%) | 0.038 |
| Radiation | 92 (5.6%) | 62 (4.7%) | 30 (9.3%) | 0.002 |
|
Tumor-related
Factors | ||||
| Tumor Size, mm (IQR) | 20 (15, 25) | 20 (15,25) | 17 (14,22) | 0.001 |
| Number of lymph nodes sampled (IQR) | 5 (2, 9) | 6 (4,10) | 1 (0,4) | <0.001 |
| Pathologic Stage | ||||
| Stage 1 | 1516 (89.9%) | 1199 (88.6%) | 317 (95.2%) | 0.002 |
| Stage 2 | 105 (6.2%) | 96 (7.1%) | 9 (2.7%) | |
| Stage 3 | 66 (3.9%) | 59 (4.4%) | 7 (2.1%) | |
| Histology | ||||
| Adenocarcinoma | 1047 (62.1%) | 844 (62.3%) | 203 (61.0%) | 0.706 |
| Squamous | 452 (26.8%) | 357 (26.4%) | 95 (28.5%) | |
| Other | 188 (11.1%) | 153 (11.3%) | 35 (10.5%) | |
| Positive Surgical Margins | 56 (3.3%) | 34 (2.5%) | 22 (6.6%) | 0.003 |