| Sex | | | .013 | | | .442 |
| Male | 380 | 326 (85.8) | | 326 | 239 (73.3) | |
| Female | 595 | 47. (79.5) | | 473 | 335 (70.8) | |
| Age | | | .624 | | | <.0001 |
| 50–64 years | 627 | 511 (84.1) | | 511 | 337 (65.9) | |
| ≥65 years | 348 | 288 (82.8) | | 288 | 237 (82.3) | |
| Marital status | | | .022 | | | .0002 |
| Married | 611 | 514 (84.1) | | 514 | 392 (76.3) | |
| Unmarried | 364 | 285 (78.3) | | 285 | 182 (63.9) | |
| Education level | | | .003 | | | .064 |
| Less than college | 586 | 463 (79.0) | | 463 | 321 (69.3) | |
| College or graduate school | 389 | 336 (86.4) | | 336 | 253 (75.3) | |
| Race | | | .183 | | | .477 |
| Black | 177 | 140 (79.1) | | 140 | 97 (69.3) | |
| Hispanic | 61 | 47 (77.1) | | 47 | 38 (80.9) | |
| Other | 43 | 32 (74.4) | | 32 | 22 (68.8) | |
| White | 694 | 580 (83.6) | | 580 | 417 (71.9) | |
| Smoking status | | | .001 | | | <.0001 |
| Nonsmoker | 866 | 722 (83.4) | | 722 | 539 (74.7) | |
| Smoker | 109 | 77 (70.6) | | 77 | 35 (45.5) | |
| Family history of colorectal cancer | | | .459 | | | .074 |
| No family history | 889 | 726 (81.7) | | 726 | 515 (70.9) | |
| Family history | 86 | 73 (84.9) | | 73 | 59 (80.8) | |
| Insurance | | | .025 | | | <.0001 |
| Medicare | 330 | 267 (80.9) | | 267 | 218 (81.7) | |
| Medicaid | 54 | 43 (79.6) | | 43 | 21 (48.8) | |
| Private | 503 | 426 (84.7) | | 426 | 290 (68.1) | |
| Other or none | 88 | 63 (71.6) | | 63 | 45 (71.4) | |
| Body mass index | | | .463 | | | .024 |
| Normal | 323 | 265 (82.0) | | 265 | 202 (76.2) | |
| Overweight | 370 | 297 (80.3) | | 297 | 197 (66.3) | |
| Obese | 282 | 237 (84.0) | | 237 | 175 (73.8) | |
| Length of time as a patient | | | .745 | | | .628 |
| <5 years | 526 | 433 (82.3) | | 433 | 308 (71.1) | |
| ≥5 years | 449 | 366 (81.5) | | 366 | 266 (72.7) | |
| Number of visits in past 2 years | | | .523 | | | .817 |
| <8 visits | 657 | 542 (82.5) | | 542 | 388 (71.6) | |
| ≥8 visits | 318 | 257 (80.8) | | 257 | 186 (72.4) | |
| Comorbidity score | | | .530 | | | .711 |
| 0 | 93 | 77 (82.8) | | 77 | 58 (75.3) | |
| 1 | 244 | 193 (79.1) | | 193 | 133 (68.9) | |
| 2 | 352 | 295 (83.8) | | 295 | 213 (72.2) | |
| 3 | 286 | 234 (81.8) | | 234 | 170 (72.7) | |