Table 1.
Descriptive characteristics of the study population (n = 3998).
| Men (n = 1961) | Women (n = 2037) | |||||||
| No neoplasia (n = 1642) |
Low-risk adenomas (n = 252) |
Advanced neoplasiaa (n = 67) |
Test for linearity | No neoplasia (n = 1805) |
Low risk adenomas (n = 191) |
Advanced neoplasiaa (n = 41) |
Test for linearity | |
| Data below are given as mean (SD) | ||||||||
| Mean age | 53.06 (1.40) | 53.06 (1.38) | 53.36 (1.32) | ns | 52.99 (1.41) | 53.20 (1.44) | 53.15 (1.33) | ns |
| Mean BMI (kg/m2) | 26.18 (3.33) | 26.38 (3.20) | 26.36 (3.26) | ns | 25.16 (4.16) | 25.52 (4.27) | 26.68 (8.45) | 0.03 |
| Median BMI | 25.8 (3.33) | 26.00 (3.20) | 25.95 (3.26) | ns | 24.50 (4.16) | 25.10 (4.27) | 24.00 (8.45) | 0.03 |
| Total score for exerciseb | 6.04 (2.02) | 5.88 (2.07) | 6.01 (2.04) | ns | 6.12 (1.90) | 6.21 (1.83) | 5.25 (1.71) | ns |
| Servings of vegetables, fruit and berries per day | 1.90 (1.41) | 1.81 (1.28) | 1.45 (1.00) | 0.02 | 2.67 (1.86) | 2.63 (1.79) | 2.68 (2.12) | ns |
| Frequency of havingc: | ||||||||
| Boiled potatoes | 3.69 (0.83) | 3.78 (0.80) | 3.52 (0.68) | ns | 3.65 (0.87) | 3.75 (0.82) | 3.58 (1.13) | ns |
| Poultry | 2.26 (0.73) | 2.23 (0.70) | 2.13 (0.72) | ns | 2.28 (0.75) | 2.21 (0.65) | 2.35 (0.92) | ns |
| Meat other than poultry | 3.04 (0.69) | 3.09 (0.70) | 2.92 (0.59) | ns | 2.94 (0.68) | 3.05 (0.62) | 2.97 (0.87) | ns |
| Fatty fish | 2.68 (0.82) | 2.57 (0.78) | 2.61 (0.78) | ns | 2.69 (0.83) | 2.71 (0.82) | 2.75 (0.93) | ns |
| Total consumption of milk (glasses/day) | 1.53 (1.79) | 1.55 (1.60) | 1.54 (1.77) | ns | 1.01 (1.46) | 0.90 (1.42) | 0.71 (0.98) | ns |
| Data below are given in number and percentage within the groupd | ||||||||
| Smoking habits | ||||||||
| Never | 534 (32.6%) | 61 (24.2%) | 11 (16.4%) | 678 (37.7%) | 62 (32.5%) | 13 (31.7%) | ||
| Former | 522 (31.9%) | 76 (30.2%) | 17 (25.4%) | 434 (24.1%) | 40 (20.9%) | 7 (17.1%) | ||
| Occasional | 82 (5.0%) | 16 (6.3%) | 1 (1.5%) | 89 (4.9%) | 9 (4.7%) | - | ||
| 1–10 cigarettes/day | 222 (13.6%) | 29 (11.5%) | 12 (17.9%) | 282 (15.7%) | 42 (22.0%) | 9 (22.0%) | ||
| 11–20 cigarettes/day | 219 (13.4%) | 57 (22.6%) | 18 (26.9%) | 277 (15.4%) | 35 (18.3%) | 12 (29.3%) | ||
| >20 cigarettes/day | 57 (3.5%) | 13 (5.2%) | 8 (11.9%) | 40 (2.2%) | 3 (1.6%) | - | ||
| Percentage with chronic disease that limits level of physical exercise | 290 (18.4%) | 44 (18.3%) | 15 (23.1%) | 404 (23.5%) | 49 (26.9%) | 12 (32.4%) | ||
| Percentage with changed dietary habits during the last year | 291 (18.0%) | 30 (12.0 %) | 13 (20.0%) | 385 (21.6%) | 47 (24.7%) | 10 (25.0%) | ||
aIncluding 4 cases of CRC
b Minimum score = 2 and maximum score = 12
cThe mean calculations are based on data categorised as 1 = [Never]; 2 = [1–3 times/month]; 3 = [1–3 times/week]; 4 = [4–6 times/week]; 5 = [1–2 times/day]; 6 = [≥3 times per day].
dThe number of replies may not add up to the total, due to incomplete replies of the questionnaire.