Skip to main content

Table 1 General characteristics of study participants by quartiles of DPI

From: The association between dietary phytochemical index with depression and quality of life in iranian adolescent girls

Variables Q1
(N = 183 )
Q2
(N = 183 )
Q3
(N = 184 )
Q4
(N = 183 )
P trend*
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 ± 13.83b 95.39 ± 13.69b 97.11 ± 14.36 99.56 ± 13.95a 0.002
Diastolic blood pressure (mm/Hg) 61.71 ± 14.23b 61.68 ± 13.38 b 62.41 ± 13.27 65.98 ± 11.49a 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
  1. DPI: dietary phytochemical index. BMI: body mass index. WHR: waist-to-hip ratio. HDL-c: high-density lipoprotein-cholesterol. LDL-c: low-density lipoprotein-cholesterol. SD: standard deviation, values are means ± SD, n (%): numbers (percentage). *Obtained from one-way ANOVA and logistic regression analysis for continuous and categorical variables, respectively. a: last quartile is considered as reference quartile, b: Significant difference between quartile with reference quartile (P value < 0.05).