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Table 1 Demographic characteristics of the study subjects (n = 350)

From: The association between dietary inflammatory index, dietary antioxidant index, and mental health in adolescent girls: an analytical study

Variable

Total (n = 350)

Dietary Inflammatory Index (DII)

Dietary Antioxidant Index (DAI)

Tertile 1 (< 2.31) (n = 119)

Tertile 2 (2.31 to 3.42) (n = 114)

Tertile 3 (> 3.42) (n = 117)

P

Tertile 1 (< -2.00) (n = 117)

Tertile 2 (-2.00 to 0.74) (n = 116)

Tertile 3 (> 0.74) (n = 117)

P

Age (years)

15.4 (1.1)

15.5 (1.1)

15.4 (1.2)

15.4 (1.1)

0.894

15.7 (1.2)

15.4 (1.1)

15.2 (1.1)

0.009

Weight (kg)

57.2 (11.9)

55.7 (11.0)

57.9 (12.4)

58.1 (12.2)

0.207

58.6 (13.0)

57.1 (11.6)

56.0 (10.9)

0.228

Height (cm)

161.1 (5.58)

160.7 (5.7)

161.7 (5.6)

160.9 (5.4)

0.362

160.8 (5.3)

161.6 (5.8)

161.1 (5.6)

0.621

BMI z-score

 Severe Thin

7 (2.1)

4 (3.5)

1 (0.9)

2 (1.8)

0.249

2 (1.7)

1 (0.9)

4 (3.4)

0.518

 Thin

30 (8.8)

13 (11.3)

13 (11.6)

4 (3.5)

6 (5.2)

11 (10.1)

13 (11.2)

 Normal

238 (69.8)

76 (66.1)

76 (67.9)

86 (75.4)

82 (70.7)

77 (70.6)

79 (68.1)

 Overweight

66 (19.4)

22 (19.1)

22(19.7)

22 (19.3)

26 (22.5)

20 (18.3)

20 (17.2)

Mother education

 Illiterate

11 (3.17)

4 (3.4)

4 (3.6)

3 (2.6)

0.012

5 (4.3)

3 (2.6)

3 (2.6)

0.365

 Under Diploma

149 (43.0)

34 (28.8)

53 (47.3)

62 (53.0)

48 (41.0)

51 (45.1)

50 (42.7)

 Diploma

130 (37.5)

56 (47.5)

36 (32.1)

38 (32.5)

39 (33.3)

40 (35.4)

51 (43.6)

 Academic

57 (16.4)

24 (20.3)

19 (17.0)

14 (12.0)

25 (21.4)

19 (16.8)

13 (11.1)

Father Education

 Illiterate

8 (2.33)

3 (2.6)

3 (2.7)

2 (1.7)

0.001

5 (4.3)

2 (1.7)

1 (0.88)

0.367

 Under Diploma

138 (40.1)

29 (24.8)

51 (45.9)

58 (50.0)

45 (38.8)

53 (46.1)

40 (35.4)

 Diploma

104 (30.2)

51 (43.6)

26 (23.4)

27 (23.3)

34 (29.3)

30 (26.1)

40 (35.4)

 Academic

94 (27.3)

34 (29.1)

31 (27.9)

29 (25.0)

32 (27.6)

30 (26.1)

32 (28.3)

Mother Job

 Housewife

305 (89.2)

99 (85.3)

101 (89.4)

105 (92.9)

0.332

102 (88.7)

100 (88.5)

103 (90.3)

0.973

 Retired

7 (2.1)

2 (1.7)

3 (2.6)

2 (1.8)

3 (2.6)

2 (1.8)

2 (1.7)

 Employed

30 (8.8)

15 (12.9)

9 (8.0)

6 (5.3)

10 (8.7)

11 (9.7)

9 (7.9)

Father Job

 Retired

39 (12.0)

16 (14.2)

15 (14.4)

8 (7.4)

0.029

15 (14.0)

10 (9.1)

14 (13.0)

0.732

 Unemployed

187 (57.5)

55 (48.7)

57 (54.8)

75 (69.4)

63 (58.9)

64 (58.2)

60 (55.6)

 Employed

99 (30.5)

42 (37.2)

32 (30.8)

25 (23.1)

29 (27.1)

36 (32.7)

34 (31.5)

Family Income

 Low

41 (12.3)

15 (13.2)

17 (15.6)

9 (8.2)

0.169

18 (16.2)

12 (10.7)

11 (10.0)

0.632

 Moderate

260 (78.1)

84 (73.7)

82 (75.2)

94 (85.4)

84 (75.7)

88 (78.6)

88 (80.0)

 High

32 (9.6)

15 (13.2)

10 (9.2)

7 (6.4)

9 (8.1)

12 (10.7)

11 (10.0)

  1. Continuous variables are expressed as mean (SD); categorical variables are expressed as count (percentages). One-Way ANOVA is used for continuous variables and Chi-Square test is used for categorical variables
  2. BMI Body mass index