Table 1.
Baseline Demographic Characteristics Among White and Black Veterans With Clinical Stage I NSCLC Undergoing Resection in the VHA
| Demographic | White (n = 8,356) | Black (n = 1,486) | P Value |
|---|---|---|---|
| Age, y | 68.1 ± 7.9 | 65.5 ± 8.1 | < .001 |
| Sex | .163 | ||
| Male | 8,063 (96.5) | 1,423 (95.8) | |
| Female | 293 (3.5) | 63 (4.2) | |
| BMI, kg/m2 | 27.38 ± 5.4 | 25.95 ± 5.4 | < .001 |
| Income, $ | .119 | ||
| < 30,000 | 204 (2.5) | 44 (3.0) | |
| 30,000-34,999 | 486 (5.8) | 66 (4.4) | |
| 35,000-45,999 | 3,028 (36.2) | 536 (36.1) | |
| ≥ 46,000 | 4,638 (55.5) | 840 (56.5) | |
| High School graduation rate, county | < .001 | ||
| ≤ 71% | 1,416 (16.9) | 472 (31.8) | |
| 71.1%-80% | 2,927 (35.0) | 598 (40.2) | |
| 80.1%-86% | 2,087 (25.0) | 265 (17.8) | |
| > 86% | 1,830 (21.9) | 138 (9.3) | |
| Missing | 96 (1.15) | 13 (0.87) | |
| Metropolitan status | < .001 | ||
| Urban | 6,227 (74.5) | 1,330 (89.5) | |
| Rural | 2,069 (24.8) | 147 (10.5) | |
| Missing | 60 (0.72) | 9 (0.61) | |
| Distance to hospital (quintiles), miles | < .001 | ||
| < 9.07 | 1,352 (16.2) | 612 (41.2) | |
| 9.08-22.52 | 1,671 (20.0) | 280 (18.8) | |
| 22.53-45.65 | 1,765 (21.1) | 205 (13.8) | |
| 45.66-84.04 | 1,741 (20.8) | 191 (12.9) | |
| > 84.04 | 1,821 (21.8) | 196 (13.2) | |
| Missing | 6 (0.1) | 2 (0.13) | |
| Annual hospital volume | 115.6 ± 57.0 | 112.8 ± 56.3 | .086 |
| Smoking status | < .001 | ||
| Never | 61 (0.7) | 10 (0.7) | |
| Former | 4,133 (49.5) | 632 (42.5) | |
| Current | 4,112 (49.2) | 840 (56.5) | |
| Missing | 50 (0.6) | 4 (0.3) | |
| Charlson/Deyo score | 6.92 ± 2.2 | 6.84 ± 2.5 | .251 |
| Comorbidities | |||
| CHF | 921 (11.0) | 177 (11.9) | .316 |
| COPD | 5,368 (64.2) | 872 (58.7) | < .001 |
| Cerebrovascular disease | 1,576 (18.9) | 216 (14.5) | < .001 |
| Diabetes | 2,389 (28.6) | 483 (32.5) | .002 |
| HIV | 41 (0.5) | 42 (2.8) | < .001 |
| HTN | 5,613 (67.1) | 1,067 (71.8) | < .001 |
| CAD | 3,249 (38.9) | 439 (29.5) | < .001 |
| PVD | 3,884 (46.5) | 540 (36.3) | < .001 |
| Peptic ulcer | 388 (4.6) | 89 (6.0) | .026 |
| Renal disease | 793 (9.5) | 210 (14.1) | < .001 |
| Renal failure | 11 (0.1) | 14 (0.9) | < .001 |
| Rheumatic disease | 290 (3.5) | 37 (2.5) | .052 |
| Severe liver disease | 79 (0.9) | 13 (1.0) | .794 |
| Mild liver disease | 487 (5.8) | 160 (10.8) | < .001 |
Data are expressed as mean ± SD or No. (%). CAD = coronary artery disease; CHF = congestive heart failure; HTN = hypertension; NSCLC = non-small cell lung cancer; PVD = peripheral vascular disease; VHA = Veterans Health Administration.