Table 1.
Characteristics among Patients with Pancreatic Cancer Who Received Pancreatectomy as First Course of Treatment by Travel Distance, National Cancer Database 2004 to 2013 (N = 44,476)
| Characteristic | 1st quartile (n = 11,152) |
2nd quartile (n = 11,091) |
3rd quartile (n = 11,152) |
4th quartile (n = 11,081) |
Chi-square p Value |
|---|---|---|---|---|---|
| Age at diagnosis, y, median (IQR) | 67 (58–75) | 66 (57–74) | 65 (57–73) | 66 (57–73) | |
| Sex | 0.0014 | ||||
| Male | 5,322 (47.7) | 5,600 (50.5) | 5,720 (51.3) | 5,854 (52.8) | |
| Female | 5,830 (52.3) | 5,491 (49.5) | 5,432 (48.7) | 5,227 (47.2) | |
| Race/ethnicity | <0.0001 | ||||
| Non-Hispanic white | 7,661 (68.7) | 8,708 (78.5) | 9,665 (86.7) | 9,655 (87.1) | |
| Non-Hispanic black | 2,025 (18.2) | 1,171 (10.6) | 735 (6.6) | 670 (6.1) | |
| Hispanic | 849 (7.6) | 677 (6.1) | 365 (3.3) | 313 (2.8) | |
| Asian | 355 (3.2) | 250 (2.3) | 142 (1.3) | 85 (0.8) | |
| Primary payer | <0.0001 | ||||
| Private insurance | 4,051 (36.3) | 4,716 (42.5) | 4,795 (43.0) | 4,279 (38.6) | |
| Medicaid | 749 (6.7) | 448 (4.0) | 405 (3.6) | 437 (3.9) | |
| Medicare | 5,791 (51.9) | 5,357 (48.3) | 5,418 (48.6) | 5,705 (51.5) | |
| Uninsured | 355 (3.2) | 322 (2.9) | 246 (2.2) | 260 (2.4) | |
| Charlson-Deyo score | <0.0001 | ||||
| 0 | 7,137 (64.0) | 7,207 (65.0) | 7,375 (66.1) | 7,470 (67.4) | |
| 1 | 3,106 (27.9) | 3,033 (27.4) | 2,987 (26.8) | 2,888 (26.1) | |
| 2 | 909 (8.2) | 851 (7.7) | 790 (7.1) | 723 (6.5) | |
| American Joint Committee on Cancer analytic stage | <0.0001 | ||||
| 0 | 306 (2.7) | 314 (2.8) | 341 (3.1) | 405 (3.7) | |
| I | 2,141 (19.2) | 2,008 (18.1) | 1,992 (17.9) | 1,978 (17.9) | |
| II | 6,997 (62.7) | 7,137 (64.4) | 7,247 (65.0) | 7,103 (64.1) | |
| III | 355 (3.2) | 323 (2.9) | 287 (2.6) | 284 (2.6) | |
| IV | 589 (5.3) | 559 (5.0) | 542 (4.9) | 516 (4.7) | |
| Median income in patient’s ZIP code area, 2008 to 2012 | <0.0001 | ||||
| <$38,000 | 2,492 (22.4) | 864 (7.8) | 1,218 (10.9) | 2,749 (24.8) | |
| $38,000 to $47,999 | 2,259 (20.3) | 1,689 (15.2) | 2,435 (21.8) | 3,648 (32.9) | |
| $48,000 to $62,999 | 2,739 (24.6) | 3,152 (28.4) | 3,138 (28.1) | 2,891 (26.1) | |
| $63,000+ | 3,658 (32.8) | 5,382 (48.5) | 4,355 (39.1) | 1,771 (16.0) | |
| No high school degree in patient’s ZIP code area, 2008 to 2012 | <0.0001 | ||||
| ≥21% | 2,203 (19.8) | 1,230 (11.1) | 1,520 (13.6) | 1,945 (17.6) | |
| 13% to 20% | 2,682 (24.1) | 2,254 (20.3) | 2,999 (26.9) | 3,426 (30.9) | |
| 7.0% to 12.9% | 3,291 (29.5) | 3,710 (33.5) | 3,830 (34.3) | 3,655 (33.0) | |
| <7% | 2,973 (26.7) | 3,894 (35.1) | 2,798 (25.1) | 2,044 (18.5) | |
| Location of reporting facility | <0.0001 | ||||
| Northeast | 2,913 (26.1) | 2,683 (24.2) | 2,440 (21.9) | 1,232 (11.1) | |
| South | 3,255 (29.2) | 3,779 (34.1) | 4,306 (38.6) | 4,988 (45.0) | |
| Midwest | 2,743 (24.6) | 2,481 (22.4) | 2,668 (23.9) | 2,958 (26.7) | |
| West | 1,961 (17.6) | 1,818 (16.4) | 1,420 (12.7) | 1,616 (14.6) | |
| Rurality of patient’s county of residence | <0.0001 | ||||
| Metro area, ≥1 million population | 7,559 (67.8) | 8,107 (73.1) | 6,093 (54.6) | 1,511 (13.6) | |
| Metro area, <1 million population | 3,256 (29.2) | 2,521 (22.7) | 2,552 (22.9) | 4,304 (38.8) | |
| Non-metro, adjacent to a metro area | 85 (0.8) | 215 (1.9) | 1,996 (17.9) | 2,946 (26.6) | |
| Non-metro, not adjacent to a metro area | 59 (0.5) | 33 (0.3) | 257 (2.3) | 2,047 (18.5) |
Values are n (%) unless otherwise noted.
IQR, interquartile range.