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Table 1 Descriptive characteristics of the study population (n = 3998).

From: Lifestyle as a predictor for colonic neoplasia in asymptomatic individuals

  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 group d         
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%)  
  1. aIncluding 4 cases of CRC
  2. b Minimum score = 2 and maximum score = 12
  3. 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].
  4. dThe number of replies may not add up to the total, due to incomplete replies of the questionnaire.