Table 1 General characteristics of study participants by quartiles of DPI

Dietary phytochemical index (range)

< 15.2

15.2-20.9

20.9-29.9

> 29.9

Age (year)

14.55 ± 1.52

14.47 ± 1.48

14.49 ± 1.51

14.53 ± 1.63

0.927

BMI (kg/m²)

20.76 ± 3.98

20.95 ± 3.78

21.66 ± 4.77

21.47 ± 4.21

0.042

Waist circumference (cm)

69.88 ± 9.03

70.04 ± 8.35

71.41 ± 9.82

70.67 ± 9.10

0.216

WHR

0.76 ± 0.05

0.76 ± 0.07

0.77 ± 0.05

0.76 ± 0.06

0.874

Systolic blood pressure (mm/Hg)

95.26 ± 13.83^b

95.39 ± 13.69^b

97.11 ± 14.36

99.56 ± 13.95^a

0.002

Diastolic blood pressure (mm/Hg)

61.71 ± 14.23^b

61.68 ± 13.38 ^b

62.41 ± 13.27

65.98 ± 11.49^a

0.002

Metabolic equivalent for task (h/week)

45.14 ± 3.11

45.18 ± 3.13

45.35 ± 3.24

45.82 ± 4.17

0.054

Triglyceride (mg/dL)

84.06 ± 38.81

80.81 ± 34.02

85.89 ± 39.08

89.89 ± 46.22

0.657

Total cholesterol (mg/dL)

162.21 ± 27.88

158.66 ± 25.59

165.13 ± 28.32

158.03 ± 30.85

0.946

HDL-c (mg/dL)

46.69 ± 8.92

47.11 ± 8.55

48.31 ± 8.88

45.88 ± 8.06

0.027

LDL-c (mg/dL)

101.28 ± 25.63

94.97 ± 24.04

103.91 ± 26.37

99.11 ± 25.71

0.386

Death of parent (%)

6 (3.4%)

8 (4.5%)

11 (6.1%)

4 (2.2%)

0.786

Divorce of parent (%)

10 (5.6%)

10 (5.6%)

11 (6.1%)

4 (2.3%)

0.193