Table 1 Characteristics of 424 colorectal cancer cases and 401 controls by quartiles of dietary inflammation index score in the Bellvitge Colorectal Cancer Study

Cutoff

<−0.73

−0.73 to 1.06

1.07 to 3.05

>3.05

N

 Cases

424

112

81

114

117

 Controls

401

101

101

98

101

Age (years)^a

 Cases

66.2 (11.7)

63.8 (10.7)

65.1 (11.5)

67.5 (10.6)

68.0 (13.2)

 Controls

65.1 (12.5)

64.1 (11.0)

63.8 (11.9)

64.2 (12.8)

68.2 (13.7)

Men (%)

 Cases

60.1

80.4

66.7

57.0

39.3

 Controls

51.6

66.3

59.4

49.0

31.7

BMI (kg/m²)^a

 Cases

25.9 (4.2)

26.5 (3.9)

25.7 (3.8)

26.0 (4.4)

25.3 (4.6)

 Controls

27.0 (4.8)

26.9 (4.9)

27.9 (4.3)

27.1 (5.4)

26.0 (4.6)

Current smokers (%)

 Cases

17.7

22.3

22.2

14.9

12.8

 Controls

14.7

11.9

17.8

16.3

12.9

High physical activity (%)

 Cases

51.3

52.7

56.3

52.6

45.3

 Controls

51.4

52.5

57.4

48.0

47.5

History of colorectal cancer^b (%)

 Cases

15.3

17.9

13.6

13.2

16.2

 Controls

5.0

8.9

3.0

5.1

3.0

Energy (kcal/day)^a

 Cases

2,175 (793)

2,713 (860)

2,317 (743)

1,983 (618)

1,748 (563)

 Controls

1,969 (678)

2,405 (725)

1,972 (594)

1,929 (630)

1,569 (469)

Alcohol (g/day)^a

 Cases

12.0 (37.6)

31.8 (64.9)

7.6 (25.3)

15.0 (38.4)

2.1 (14.2)

 Controls

9.5 (36.5)

14.4 (49.2)

12.7 (41.7)

8.4 (35.5)

4.9 (20.3)

Fruit and vegetables (g/1,000 kcal day)^a

 Cases

230 (134)

302 (145)

240 (135)

228 (125)

157 (86)

 Controls

274 (160)

364 (174)

299 (154)

245 (134)

190 (119)

Red and processed meat (g/1,000 kcal day)^a

 Cases

38.3 (21.6)

38.5 (21.2)

42.0 (23.8)

36.5 (21.5)

37.1 (20.4)

 Controls

39.5 (22.8)

38.0 (24.8)

42.1 (24.4)

38.9 (19.5)

38.9 (22.3)

Aspirin (%)

 Cases

16.3

18.8

17.3

15.8

13.7

 Controls

18.7

13.9

18.8

15.3

26.7

NSAID (%)

 Cases

5.7

3.6

6.2

5.3

7.7

 Controls

14.5

10.9

19.8

12.2

14.9