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Table 3 Correlations between JDI, mJDI12, wJDI9 score a and nutrient intakes (n = 2221)

From: A cross-sectional study of the associations between the traditional Japanese diet and nutrient intakes: the NILS-LSA project

 CrudeEnergy-adjusted
JDImJDI12wJDI9JDImJDI12wJDI9
Energy (kcal)0.09(0.05, 0.13)0.12(0.08, 0.16)0.06(0.02, 0.10)      
Protein (g)0.23(0.19, 0.27)0.28(0.24, 0.32)0.26(0.22, 0.30)0.26(0.22, 0.30)0.31(0.27, 0.35)0.36(0.32, 0.40)
Fiber (g)0.42(0.39, 0.46)0.55(0.51, 0.58)0.63(0.60, 0.65)0.42(0.38, 0.45)0.54(0.50, 0.57)0.65(0.62, 0.67)
Vitamin A (μg)0.28(0.24, 0.32)0.35(0.31, 0.39)0.45(0.41, 0.48)0.25(0.21, 0.29)0.31(0.27, 0.35)0.43(0.39, 0.47)
Vitamin C (mg)0.34(0.30, 0.38)0.42(0.39, 0.46)0.49(0.45, 0.52)0.31(0.27, 0.34)0.38(0.34, 0.42)0.46(0.43, 0.50)
Vitamin E (mg)0.18(0.14, 0.22)0.25(0.21, 0.29)0.38(0.34, 0.42)0.15(0.11, 0.19)0.21(0.17, 0.25)0.41(0.37, 0.45)
Calcium (mg)0.26(0.22, 0.30)0.34(0.30, 0.38)0.43(0.40, 0.47)0.23(0.19, 0.27)0.31(0.27, 0.35)0.44(0.40, 0.47)
Iron (mg)0.46(0.43, 0.50)0.53(0.50, 0.56)0.50(0.47, 0.53)0.49(0.45, 0.52)0.55(0.52, 0.59)0.56(0.52, 0.59)
Potassium (mg)0.37(0.33, 0.41)0.49(0.45, 0.52)0.60(0.57, 0.62)0.38(0.34, 0.41)0.49(0.46, 0.53)0.66(0.64, 0.69)
Magnesium (mg)0.39(0.35, 0.43)0.49(0.46, 0.52)0.54(0.51, 0.57)0.42(0.39, 0.46)0.53(0.50, 0.56)0.64(0.62, 0.67)
Sodium (mg)0.36(0.33, 0.40)0.37(0.34, 0.41)0.25(0.21, 0.29)0.38(0.35, 0.42)0.38(0.34, 0.41)0.26(0.22, 0.30)
Saturated fat (g)−0.23(−0.27, −0.19)−0.19(−0.23, −0.15)−0.09(−0.14, −0.05)−0.35(−0.39, −0.31)−0.32(−0.36, −0.28)−0.16(−0.20, −0.12)
Saturated fatty acid, % c−0.17(− 0.21, − 0.12)−0.15(− 0.19, − 0.11)−0.07(− 0.11, − 0.03)      
Sodium / Potassium−0.03(−0.07, 0.01)− 0.15(− 0.19, − 0.10)−0.38(− 0.42, − 0.34)      
  1. aJDI, Japanese Diet Index (original 9-component Japanese Diet Index); mJDI12, 12-component modified Japanese Diet Index; wJDI9, 9-component weighted Japanese Diet Index; CI, confidence interval
  2. bComponents of the nutrient density score: 9 encouraged nutrients (protein, fiber, vitamin A, vitamin C, vitamin E, calcium, iron, potassium, magnesium) and 2 limited nutrients (sodium, saturated fat)
  3. cSaturated fatty acid (g)/all fatty acid (g) × 100%