Table 1 Patient and medical center characteristics in all veterans and by treatment group
Characteristics | All patients (N = 4054) | CCRT (N = 1893) | SCRT (N = 514) | RT only (N = 466) | CT only (N = 541) | Neither (N = 640) | P-value a |
|---|---|---|---|---|---|---|---|
Patient-related | |||||||
Age | |||||||
Mean (SD) | 68.7 (8.2) | 67.3 (7.4) | 67.4 (7.3) | 72.3 (8.9) | 69.0 (8.4) | 71.4 (8.9) | |
Median (Q1-Q3) | 68.0 (63.0–74.0) | 67.0 (63.0–71.0) | 67.0 (63.0–71.0) | 71.0 (66.0–80.0) | 67.0 (63.0–75.0) | 70.0 (65.0–78.0) | <.0001 |
Gender | |||||||
Male | 3954 (97.5%) | 1847 (97.6%) | 496 (96.5%) | 457 (98.1%) | 530 (98.0%) | 624 (97.5%) | 0.5120 |
Race | |||||||
White | 3164 (78.0%) | 1499 (79.2%) | 392 (76.3%) | 343 (73.6%) | 443 (81.9%) | 487 (76.1%) | 0.0053 |
Black or African American | 669 (16.5%) | 304 (16.1%) | 90 (17.5%) | 88 (18.9%) | 68 (12.6%) | 119 (18.6%) | |
Other | 67 (1.7%) | 21 (1.1%) | 15 (2.9%) | + | 13 (2.4%) | + | |
Unknown | 154 (3.8%) | 69 (3.6%) | 17 (3.3%) | ++ | 17 (3.1%) | ++ | |
Ethnicity | |||||||
Hispanic or Latino | 97 (2.4%) | 36 (1.9%) | 13 (2.5%) | 11 (2.4%) | 22 (4.1%) | 15 (2.3%) | 0.0310 |
Not Hispanic or Latino | 3826 (94.4%) | 1803 (95.2%) | 490 (95.3%) | 440 (94.4%) | 493 (91.1%) | 600 (93.8%) | |
Unknown | 131 (3.2%) | 54 (2.9%) | 11 (2.1%) | 15 (3.2%) | 26 (4.8%) | 25 (3.9%) | |
Marital Status b | |||||||
Married | 1810 (44.6%) | ++ | ++ | ++ | ++ | ++ | 0.2897 |
Not Married | 2228 (55.0%) | 1014 (53.6%) | 281 (54.7%) | 259 (55.6%) | 290 (53.6%) | 384 (60.0%) | |
Unknown | 16 (0.4%) | + | + | + | + | + | |
Medicare enrollment any time between 2013 and 2017 | |||||||
Yes | 3361 (82.9%) | 1522 (80.4%) | 426 (82.9%) | 414 (88.8%) | 441 (81.5%) | 558 (87.2%) | <.0001 |
Medicaid-eligible | |||||||
Yes | 68 (1.7%) | 27 (1.4%) | + | + | ++ | + | 0.4563 |
No | 3910 (96.4%) | 1835 (96.9%) | 491 (95.5%) | 448 (96.1%) | 517 (95.6%) | 619 (96.7%) | |
Unknown | 76 (1.9%) | 31 (1.6%) | ++ | ++ | + | ++ | |
Priority status | |||||||
Non-service connected | 2021 (49.9%) | 917 (48.4%) | 251 (48.8%) | 262 (56.29%) | 258 (47.7%) | 333 (52.0%) | 0.0553 |
Service connected < 50% | 596 (14.7%) | 269 (14.2%) | 77 (15.0%) | 68 (14.6%) | 85 (15.7%) | 97 (15.2%) | |
Service connected 50 to 100% | 1437 (35.4%) | 707 (37.3%) | 186 (36.2%) | 136 (29.2%) | 198 (36.6%) | 210 (32.8%) | |
Rurality of patient residence | |||||||
Urban | 2531 (62.4%) | 1178 (62.2%) | 319 (62.1%) | 310 (66.5%) | 318 (58.8%) | 406 (63.4%) | 0.3908 |
Distance between patient residence and medical center | |||||||
Mean (SD) | 93.2 (122.4) | 85.9 (85.9) | 88.6 (143.3) | 83.9 (76.1) | 114.5 (185.2) | 107.2 (150.5) | |
Median (Q1-Q3) | 66.3 (20.6–127.5) | 64.4 (20.5–122.1) | 56.9 (18.6–113.6) | 66.1 (18.2–130.0) | 71.7 (27.0–131.4) | 74.4 (21.2–145.4) | 0.0061 |
Unknown | + | + | + | + | + | + | |
Histology | |||||||
Squamous | 2102 (51.9%) | 1027 (54.3%) | 291 (56.6%) | 260 (55.8%) | 229 (42.3%) | 295 (46.1%) | <.0001 |
Adenocarcinoma | 1447 (35.7%) | 656 (34.7%) | 171 (33.3%) | 141 (30.3%) | 236 (43.6%) | 243 (38.0%) | |
Other | 505 (12.5%) | 210 (11.1%) | 52 (10.1%) | 65 (13.9%) | 76 (14.0%) | 102 (15.9%) | |
Smoking status | |||||||
Current smoker | 2272 (56.0%) | 1127 (59.5%) | 299 (58.2%) | 243 (52.2%) | 266 (49.2%) | 337 (52.7%) | 0.0003 |
Former smoker | 1400 (34.5%) | 619 (32.7%) | 165 (32.1%) | 176 (37.8%) | 202 (37.3%) | 238 (37.2%) | |
Never smoker | 133 (3.3%) | 47 (2.5%) | 15 (2.9%) | 17 (3.7%) | 29 (5.4%) | 25 (3.9%) | |
Unknown | 249 (6.1%) | 100 (5.3%) | 35 (6.8%) | 30 (6.4%) | 44 (8.1%) | 40 (6.3%) | |
Charlson-Deyo comorbidity score | |||||||
Mean (SD) | 3.4 (2.6) | 3.2 (2.4) | 3.3 (2.6) | 4.0 (2.9) | 3.3 (2.6) | 3.6 (2.6) | |
Median (Q1-Q3) | 3.0 (1.0–5.0) | 3.0 (1.0–4.0) | 3.0 (2.0–4.0) | 3.0 (2.0–6.0) | 3.0 (1.0–4.0) | 3.0 (2.0–5.0) | <.0001 |
0 | 333 (8.2%) | 167 (8.8%) | ++ | ++ | ++ | ++ | <.0001 |
1 | 684 (16.9%) | 352 (18.6%) | 76 (14.8%) | 61 (13.1%) | 83 (15.3%) | 112 (17.5%) | |
2 | 676 (16.7%) | 315 (16.6%) | 94 (18.3%) | 67 (14.4%) | 106 (19.6%) | 94 (14.7%) | |
3 | 760 (18.7%) | 366 (19.3%) | 109 (21.2%) | 80 (17.2%) | 96 (17.7%) | 109 (17.0%) | |
4+ | 1565 (38.6%) | 675 (35.7%) | 185 (36.0%) | 225 (48.3%) | 197 (36.4%) | 283 (44.2%) | |
Unknown | 36 (0.9%) | 18 (1.0%) | + | + | + | + | |
Medical Center-related | |||||||
Certified by Commission on Cancer | |||||||
Yes | 2928 (72.2%) | 1379 (72.8%) | 387 (75.3%) | 354 (76.0%) | 376 (69.5%) | 432 (67.5%) | 0.0162 |
No | 1107 (27.3%) | 503 (26.6%) | ++ | ++ | ++ | ++ | |
Unknown | 19 (0.5%) | 11 (0.6%) | + | + | + | + | |
Geographic (Census) region | |||||||
Northeast | 530 (13.1%) | ++ | ++ | ++ | ++ | ++ | <.0001 |
Midwest | 1068 (26.3%) | 542 (28.6%) | 128 (24.9%) | 110 (23.6%) | 130 (24.0%) | 158 (24.7%) | |
South | 1806 (44.5%) | 829 (43.8%) | 245 (47.7%) | 225 (48.3%) | 221 (40.9%) | 286 (44.7%) | |
West | 622 (15.3%) | 261 (13.8%) | 69 (13.4%) | 70 (15.0%) | 110 (20.3%) | 112 (17.5%) | |
Puerto Rico | 28 (0.7%) | + | + | + | + | + | |
Total number of unique patients seen at oncology clinics at medical center | |||||||
Mean (SD) | 217.7 (157.2) | 226.0 (159.5) | 218.2 (157.5) | 204.1 (149.9) | 196.5 (150.4) | 220.3 (158.9) | |
Median (Q1-Q3) | 196.0 (95.0–302.0) | 208.0 (99.0–328.0) | 191.0 (93.0–301.0) | 185.5 (90.0–290.0) | 170.0 (85.0–275.0) | 204.0 (93.5–318.5) | 0.0009 |
Total number of oncologists at medical center | |||||||
Mean (SD) | 12.8 (7.7) | 10.6 (5.9) | 10.8 (5.2) | 10.9 (5.5) | 9.6 (5.8) | 9.7 (5.7) | |
Median (Q1-Q3) | 12.0 (7.0–17.0) | 11.0 (6.0–15.0) | 11.0 (6.0–14.0) | 11.0 (7.0–15.0) | 9.0 (5.0–14.0) | 9.0 (5.0–14.0) | <.0001 |