Table 1.
Study population characteristics
| Characteristic | n (%) |
| Sex | |
| Male | 335 (91) |
| Age (yr) | |
| mean (SD) | 48.7 (11.2) |
| Race | |
| Caucasian | 303 (83) |
| Asian | 41 (11) |
| Other | 25 (6) |
| Practice type | |
| Private | 219 (60) |
| Multi-specialty | 56 (15) |
| Academic | 80 (22) |
| HMO | 18 (4) |
| Other | 16 (4) |
| MD type | |
| GI | 337 (92) |
| Surgeon | 30 (8) |
| Community size | |
| < 50 000 | 29 (8) |
| 51 000-100 000 | 46 (12) |
| > 100 000 | 115 (31) |
| > 500 000 | 63 (17) |
| > 1 000 000 | 122 (33) |
| Years practicing | |
| < 5 yr | 60 (16) |
| 5-10 yr | 68 (19) |
| > 10 yr | 237 (65) |
| Colonoscopies per month, mean number (SD) | 86.8 (71.0) |
| Percentage of screening colonoscopies, mean, (SD) | 48 (23.3) |