Table 2

Intake of main dietary items
Colorectal cancer cases Controls p
[n = 703] [n = 853]
Fish consumption [servings/week]
Mean (SD) 1.2 (1.2) 1.4 (1.4) pMW = 0.040
Median (Q1-Q3) 0.9 (0.5-1.5) 1.1 (0.6-1.8)
Fruits [servings/day]
Mean (SD) 1.8 (1.6) 2.3 (3.1)
Median (Q1-Q3) 1.3 (0.7-2.5) 1.4 (0.7-3.0) pMW = 0.340
Raw vegetables [servings/day]
Mean (SD) 1.2 (0.8) 1.3 (1.3)
Median (Q1-Q3) 1.0 (0.6-1.5) 0.9 (0.6-1.6) pMW = 0.932
Cooked vegetables [servings/day]
Mean (SD) 0.5 (0.3) 0.6 (0.3)
Median (Q1-Q3) 0.5 (0.3-0.7) 0.5 (0.4-0.7) pMW = 0.135
Total energy [kcal/day]
Mean (SD) 2236 (771) 2407 (1035)
Median (Q1-Q3) 2088 (1725–2558) 2152 (1669–2857) pMW = 0.090
Pure alcohol [g/week]
Mean (SD) 33.4 (67.0) 34.3 (102.9)
Median (Q1-Q3) 8.3 (2.8-33.2) 5.2 (2.4-27.2) pMW = 0.013
Fiber [g/d]
Mean (SD) 4.5 (1.6) 4.7 (2.0)
Median (Q1-Q3) 4.2 (3.4-5.4) 4.2 (3.3-5.7) pMW = 0.981
Vitamin C [mg/d]
Mean (SD) 93.1 (50.9) 99.4 (62.4)
Median (Q1-Q3) 78.7 (57.9-117.6) 81.6 (55.2-129.5) pMW = 0.464
Calcium [g/d]
Mean (SD) 0.72 (0.30) 0.79 (0.41)
Median (Q1-Q3) 0.65 (0.50-0.86) 0.69 (0.50-0.93) pMW = 0.025
Dietary iron [mg/d]
Mean (SD) 14.5 (4.9) 15.7 (6.7)
Median (Q1-Q3) 13.6 (11.2-16.7) 14.0 (11.1-18.2) pMW = 0.036
Taking mineral supplements df = 1
[n, (%)] 121 (14.2%) 105 (14.9%) pchi = 0.676

MW Mann–Whitney test, df degrees of freedom; chi-chi-square test.

Galas et al.

Galas et al. Nutrition Journal 2013 12:134   doi:10.1186/1475-2891-12-134

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