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Table 2 Observed numbers and crude odds ratios (ORs) of low-risk and advanced colonic neoplasia in association with various risk factors related to lifestyle (n = 3998)a.

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

  Controlsb (n = 3447) Low-risk adenomas (n = 443) Advanced neoplasia (n = 108)c
Lifestyles variablesd n (%) n (%) OR [95% CI] n (%) OR [95% CI]
Gender      
   Male 1642 (47.6%) 252 (56.9%) Reference 67 (62.0%) Reference
   Female 1805 (52.4%) 191 (43.1%) 0.69 [0.57–0.84] 41 (38.0%) 0.56 [0.38–0.83]
BMI (kg/m2)      
   BMI<25 1630 (47.6%) 187 (42.2%) Reference 47 (43.5%) Reference
   BMI = 25–29.9 1392 (40.7%) 194 (43.8%) 1.22 [0.98–1.50] 44 (40.7%) 1.10 [0.72–1.66]
   BMI ≥ 30 399 (11.7%) 62 (14.0%) 1.35 [1.00–1.84] 17 (15.7%) 1.48 [0.84–2.60]
    Ptrend = 0.02   Ptrend = 0.22
Smoking      
   Never 1212 (35.3%) 123 (27.8%) Reference 24 (22.2%) Reference
   Former 956 (27.8%) 116 (26.2%) 1.20 [0.92–1.56] 24 (22.2%) 1.27 [0.72–2.25]
   Occasional 171 (5.0%) 25 (5.6%) 1.44 [0.91–2.28] 1 (0.9%) 0.30 [0.04–2.20]
   1–10 cigarettes/day 504 (14.7%) 71 (16.0%) 1.39 [1.02–1.89] 21 (19.4%) 2.10 [1.16–3.81]
   11–20 cigarettes/day 496 (14.4%) 92 (20.8%) 1.83 [1.37–2.44] 30 (27.8%) 3.05 [1.77–5.28]
   >20 cigarettes/day 97 (2.8%) 16 (3.6%) 1.63 [0.93–2.85] 8 (7.4%) 4.17 [1.82–9.52]
    Ptrend < 0.001   Ptrend < 0.001
Total score for exercise with or without sweating      
   Quartile 1 (score 2–4) 724 (22.1%) 99 (23.2%) Reference 33 (31.1%) Reference
   Quartile 2 (score 5) 502 (15.4%) 69 (16.2%) 1.01 [0.72–1.40] 14 (13.2%) 0.61 [0.32–1.16]
   Quartile 3 (score 6) 788 (24.1%) 93 (21.8%) 0.86 [0.64–1.17] 27 (25.5%) 0.75 [0.45–1.26]
   Quartile 4 (score 7–12) 1256 (38.4%) 165 (38.7%) 0.96 [0.74–1.25] 32 (30.2%) 0.56 [0.34–0.92]
    Ptrend = 0.65   Ptrend = 0.04
Servings of vegetable, fruit and berries per day      
   Quartile 1 (0–1.07 servings per day) 790 (24.1%) 108 (25.8%) Reference 38 (36.9%) Reference
   Quartile 2 (1.08–1.71 servings per day) 784 (23.9%) 114 (27.2%) 1.06 [0.80–1.41] 27 (26.2%) 0.72 [0.43–1.18]
   Quartile 3 (1.72–2.50 servings per day) 818 (24.9%) 109 (26.0%) 0.98 [0.73–1.29] 18 (17.5%) 0.46 [0.26–0.81]
   Quartile 4 (At least 2.60 servings per day) 889 (27.1%) 88 (21.0%) 0.72 [0.54–0.98] 20 (19.4%) 0.47 [0.27–0.81]
    Ptrend = 0.03   Ptrend = 0.002
Consumption of boiled potatoes      
   <1 time/week 234 (6.9%) 21 (4.8%) Reference 9 (8.4%) Reference
   1–3 times/week 1082 (31.9%) 121 (27.7%) 1.25 [0.77–2.02] 33 (30.8%) 0.79 [0.37–1.68]
   ≥4 times/week 2075 (61.2%) 295 (67.5%) 1.58 [1.00–2.52] 65 (60.7%) 0.81 [0.40–1.66]
    Ptrend < 0.01   Ptrend = 0.75
Consumption of meat other than poultry      
   <1 time/week 520 (15.4%) 55 (12.7%) Reference 19 (18.3%) Reference
   1–3 times/week 2325 (69.0%) 295 (68.1%) 1.20 [0.87–1.62] 72 (69.2%) 0.85 [0.51–1.42]
   ≥4 times/week 523 (15.5%) 83 (19.2%) 1.50 [1.05–2.15] 13 (12.5%) 0.68 [0.33–1.39]
    Ptrend = 0.14   Ptrend = 0.76
  1. aSubgroups may not total to 3998 because of missing values
  2. b No distal colorectal neoplasia diagnosed at FS
  3. cIncluding 8 cases of screening detected CRC
  4. dAll variables are specified in the Additional file 1