Skip to main content

Table 3 Dietary and nutrient intakes of study participants across tertiles of DPI

From: Dietary phytochemical index in relation to risk of glioma: a case-control study in Iranian adults

  Tertiles of DPI
T1
≤21
n = 128
T2
21 < to< 30
n = 128
T3
≥30
n = 128
P a
Energy (kcal/day) 2700 ± 843 2494 ± 554† 2508 ± 560 0.05
Nutrient intakes
 Protein (g/day) 101 ± 37 94 ± 20 96 ± 21 0.14
 Fat (g/day) 67 ± 25 62 ± 17 64 ± 18 0.28
 Carbohydrate (g/d) 436 ± 153 403 ± 98 409 ± 98 0.11
 Dietary fiber (g/day) 27.1 ± 19.5 21.8 ± 8.7† 20.2 ± 6.2† 0.001
 Cholesterol (mg/day) 275 ± 182 234 ± 82† 211 ± 86† 0.001
 SFA (g/day) 21.5 ± 10 19.6 ± 7.8 19.2 ± 7 0.09
 Calcium (mg/day) 1161 ± 431 1069 ± 259 1063 ± 272 0.08
 Vitamin E (mg/day) 5.6 ± 2.3 5.1 ± 2.4 5.7 ± 2.6 0.13
 Vitamin B6 (mg/day) 2 ± 1 1.8 ± 0.4 1.8 ± 0.4 0.11
 Folate (mcg/day) 416 ± 416 348 ± 77 345 ± 77 0.04
 Vitamin C (mg/d) 142 ± 160 135 ± 37 134 ± 40 0.78
 Potassium (mg/d) 4399 ± 1854 4131 ± 725 4264 ± 821 0.20
 Selenium (mg/d) 0.08 ± 0.5 0.06 ± 0.03† 0.05 ± 0.02† < 0.001
Food groups
 Refined grains (g/day) 268 ± 120 210 ± 94† 125 ± 84†‡ < 0.001
 Whole grains (g/day) 97 ± 109 131 ± 78† 248 ± 105†‡ < 0.001
 Red and processed meats
(g/day)
41 ± 31 37 ± 17 34 ± 17 0.01
 Poultry (g/day) 34 ± 30 31 ± 12 29 ± 11 0.12
 Vegetables(g/day) 247 ± 82 274 ± 78† 283 ± 91† 0.002
 Fruits (g/day) 327 ± 120 357 ± 108 361 ± 121† 0.04
 Fish (g/day) 9.6 ± 13 8.2 ± 8 9.5 ± 9 0.40
 Nuts (g/day) 4.6 ± 4.5 4.3 ± 3 4.6 ± 3.7 0.79
 Legumes (g/day) 32 ± 17 34 ± 18 38 ± 20† 0.01
 Sugar-sweetened beverage (g/day) 95 ± 82 81 ± 59 68 ± 70† 0.02
  1. Data are presented as mean ± SD
  2. a Obtained from ANOVA with Bonferroni correction
  3. † P-value for the comparison with T1 < 0.05
  4. † P-value for the comparison with T2 < 0.05