| All (n = 2039) | No statin use (n = 1102) | Statin use any time after cohort entry (n = 937) | |||
---|---|---|---|---|---|---|
n | (%) | n | (%) | n | (%) | |
Year of colon cancer diagnosis | ||||||
 1995–1999 | 410 | (20.1) | 264 | (24.0) | 146 | (15.6) |
 2000–2004 | 569 | (27.9) | 302 | (27.4) | 267 | (28.5) |
 2005–2009 | 579 | (28.4) | 275 | (25.0) | 304 | (32.4) |
 2010–2014 | 481 | (23.6) | 261 | (23.7) | 220 | (23.5) |
Age at diagnosis (years) | ||||||
 mean (SD) | 69.9 | (11.6) | 69.6 | (12.7) | 70.2 | (10.1) |
  < 50 | 94 | (4.6) | 73 | (6.6) | 21 | (2.2) |
 50–59 | 294 | (14.4) | 167 | (15.2) | 127 | (13.6) |
 60–69 | 530 | (26.0) | 260 | (23.6) | 270 | (28.8) |
 70–79 | 677 | (33.2) | 327 | (29.7) | 350 | (37.4) |
 80+ | 444 | (21.8) | 275 | (25.0) | 169 | (18.0) |
Sex | ||||||
 Female | 1066 | (52.3) | 626 | (56.8) | 440 | (47.0) |
 Male | 973 | (47.7) | 476 | (43.2) | 497 | (53.0) |
Hispanic ethnicity | ||||||
 Not Hispanic | 1742 | (85.4) | 916 | (83.1) | 826 | (88.2) |
 Hispanic | 93 | (4.6) | 42 | (3.8) | 51 | (5.4) |
 Unknowna | 204 | (10.0) | 144 | (13.1) | 60 | (6.4) |
Race | ||||||
 White | 1582 | (77.6) | 844 | (76.6) | 738 | (78.8) |
 Black | 70 | (3.4) | 32 | (2.9) | 38 | (4.1) |
 Asian | 66 | (3.2) | 36 | (3.3) | 30 | (3.2) |
 American Indian/Alaska Native | 9 | (0.4) | 3 | (0.3) | 6 | (0.6) |
 Hawaiian/Pacific Islander | 5 | (0.2) | 3 | (0.3) | 2 | (0.2) |
 Multiple race | 19 | (0.9) | 9 | (0.8) | 10 | (1.1) |
 Other/Unknown | 288 | (14.1) | 175 | (15.9) | 113 | (12.1) |
Smoking before diagnosis | ||||||
 Never | 916 | (45.2) | 538 | (49.1) | 378 | (40.5) |
 Ever | 1112 | (54.8) | 557 | (50.9) | 555 | (59.5) |
 Unknown | 11 |  | 7 |  | 4 |  |
Charlson score at diagnosis | ||||||
 mean (SD) | 0.8 | (1.4) | 0.6 | (1.0) | 1.2 | (1.6) |
 0 | 1085 | (53.2) | 688 | (62.4) | 397 | (42.4) |
 1 | 429 | (21.0) | 207 | (18.8) | 222 | (23.7) |
 2 | 184 | (9.0) | 75 | (6.8) | 109 | (11.6) |
 3+ | 225 | (11.0) | 65 | (5.9) | 160 | (17.1) |
 Unknowna | 116 | (5.7) | 67 | (6.1) | 49 | (5.2) |
BMI at diagnosis (kg/m2) | ||||||
 mean (SD) | 27.9 | (5.9) | 27 | (5.6) | 29 | (6.1) |
 Underweight (< 18.5) | 41 | (2.1) | 29 | (2.8) | 12 | (1.3) |
 Normal (18.5–24.9) | 610 | (31.4) | 386 | (37.9) | 224 | (24.3) |
 Overweight (25–29.9) | 702 | (36.2) | 351 | (34.5) | 351 | (38.0) |
 Obese (30–34.9) | 380 | (19.6) | 159 | (15.6) | 221 | (23.9) |
 Morbidly obese (35+) | 208 | (10.7) | 93 | (9.1) | 115 | (12.5) |
 Unknown | 98 |  | 84 |  | 14 |  |
Diagnoses in the year before colon cancer | ||||||
 Diabetes | 400 | (19.6) | 93 | (8.4) | 307 | (32.8) |
 Hyperlipidemia/hypercholesterolemia | 655 | (32.1) | 159 | (14.4) | 496 | (52.9) |
 Hypertension | 1111 | (54.5) | 481 | (43.6) | 630 | (67.2) |
Stage at colon cancer diagnosis | ||||||
 I | 911 | (44.7) | 457 | (41.5) | 454 | (48.5) |
 IIA | 935 | (45.9) | 523 | (47.5) | 412 | (44.0) |
 IIB | 117 | (5.7) | 78 | (7.1) | 39 | (4.2) |
 IIIA | 76 | (3.7) | 44 | (4.0) | 32 | (3.4) |
Grade | ||||||
 Grade I | 187 | (9.7) | 89 | (8.5) | 98 | (11.1) |
 Grade II | 1423 | (73.8) | 784 | (75.0) | 639 | (72.4) |
 Grade III | 294 | (15.2) | 158 | (15.1) | 136 | (15.4) |
 Grade IV | 24 | (1.2) | 14 | (1.3) | 10 | (1.1) |
Unknown, not stated, or N/A | 111 | Â | 57 | Â | 54 | Â |
Cancer treatment received | ||||||
 Chemotherapy | 277 | (13.6) | 170 | (15.4) | 107 | (11.4) |
 Radiation | 30 | (1.5) | 15 | (1.4) | 15 | (1.6) |
Medication use in the year before colon cancer diagnosisb | ||||||
 Any Statin | 542 | (26.6) | 34 | (3.1) | 508 | (54.2) |
  Atorvastatin | 29 | (1.4) | 1 | (0.1) | 28 | (3.0) |
  Lovastatin | 235 | (11.5) | 13 | (1.2) | 222 | (23.7) |
  Simvastatin | 306 | (15.0) | 20 | (1.8) | 286 | (30.5) |
  Other statin | 22 | (1.1) | 3 | (0.3) | 19 | (2.0) |
 Aspirin | 685 | (34.1) | 280 | (25.9) | 405 | (43.8) |
 Any antihypertensive | 1078 | (52.9) | 444 | (40.3) | 634 | (67.7) |
Common types of statin use after colon cancer diagnosisb | ||||||
 Atorvastatin | 220 | (10.8) | 0 | (0) | 220 | (23.5) |
 Lovastatin | 425 | (20.8) | 0 | (0) | 425 | (45.4) |
 Simvastatin | 683 | (33.5) | 0 | (0) | 683 | (72.9) |
 Other statin | 101 | (5.0) | 0 | (0) | 101 | (10.8) |