Demographic data
| Study arm: nurse endoscopists (N=364) | Control arm: medical endoscopists (N=367) | |
|---|---|---|
| Mean age (SD)/years | 58.4 (4.72) | 58.2 (4.57) |
| Male sex | 192 (52.7%) | 189 (51.5%) |
| Median BMI (IQR)/kg/m2 | 23.5 (21.1–25.5) | 23.8 (21.6–25.9) |
| Family history of CRC | 55 (15.1%) | 67 (18.3%) |
| Current or ex-smoker | 47 (12.9%) | 61 (16.6%) |
| Alcohol use* | 37 (10.2%) | 50 (13.6%) |
| Aspirin/NSAID use* | 24 (6.6%) | 35 (9.5%) |
| Hypertension | 91 (25%) | 100 (27.2%) |
| Diabetes mellitus | 37 (10.2%) | 38 (10.4%) |
| Ischaemic heart disease | 6 (1.6%) | 10 (2.7%) |
| Chronic obstructive pulmonary disease | 6 (1.6%) | 2 (0.5%) |
| Cerebrovascular accident | 1 (0.3%) | 4 (1.1%) |
*Regular use more than twice per week.
BMI, body mass index; CRC, colorectal cancer; NSAID, non-steroidal anti-inflammatory drug.