Table 4.

Dietary factors and the risk for serrated polyps

Dietary variablesn TotalSerrated polypsP for right-left differenceAdvanced serrated polypsP for right-left difference
LeftRightLeftRight
n CasesRR* (95% CI)n CasesRR* (95% CI)n CasesRR* (95% CI)n CasesRR* (95% CI)
Total dietary fiber
    Q16771751.00641.00181.00151.00
    Q26761851.08 (0.90-1.29)580.92 (0.65-1.29)311.47 (0.85-2.53)201.32 (0.69-2.50)
    Q36801550.91 (0.75-1.11)691.06 (0.76-1.48)231.18 (0.66-2.10)161.09 (0.55-2.14)
    Q46781370.88 (0.72-1.08)590.95 (0.67-1.36)0.17140.81 (0.42-1.57)161.16 (0.58-2.31)0.48
    P trend0.100.990.410.83
Carbohydrates
    Q16761751.00531.00141.00131.00
    Q26791751.00 (0.83-1.20)681.30 (0.92-1.84)301.95 (1.04-3.63)201.48 (0.76-2.87)
    Q36801731.00 (0.83-1.21)741.38 (0.98-1.95)251.57 (0.82-3.00)181.28 (0.64-2.54)
    Q46761290.82 (0.67-1.01)551.07 (0.74-1.56)170.97 (0.48-1.97)161.07 (0.52-2.18)
    P trend0.090.630.200.580.980.73
Fat total
    Q16791241.00461.00161.00121.00
    Q26791651.27 (1.03-1.56)731.60 (1.12-2.28)261.53 (0.84-2.77)201.65 (0.85-3.21)
    Q36761911.45 (1.19-1.77)631.36 (0.94-1.96)251.86 (1.02-3.41)232.38 (1.24-4.57)
    Q46771721.27 (1.03-1.56)681.45 (1.01-2.10)191.40 (0.74-2.65)121.15 (0.54-2.42)
    P trend0.010.130.370.220.430.40
Red meat
    Q16971381.00591.00181.0201.00
    Q26811641.10 (0.90-1.35)671.15 (0.82-1.63)191.00 (0.54-1.85)251.47 (0.82-2.63)
    Q36631671.12 (0.91-1.39)661.15 (0.80-1.66)241.79 (0.97-3.32)130.95 (0.46-1.96)
    Q46691821.17 (0.93-1.48)581.03 (0.68-1.57)0.37251.93 (0.97-3.84)90.82 (0.34-1.96)0.93
    P trend0.190.860.020.56
Total energy intake
    Q16771461.00621.00201.00211.00
    Q26781531.00 (0.82-1.22)600.94 (0.67-1.33)271.77 (1.04-3.03)261.37 (0.79-2.37)
    Q36801701.07 (0.88-1.31)610.93 (0.66-1.33)181.41 (0.77-2.58)100.59 (0.28-1.22)
    Q46761831.16 (0.94-1.42)671.01 (0.71-1.44)0.78212.28 (1.23-4.24)100.70 (0.33-1.51)0.88
    P trend0.120.960.030.14
  • Abbreviation: Q, quartile.

  • *Relative risk adjusted for age, sex, center, treatment, time since randomization, study number, smoking status, and log calories.