Table 3.
Correlations between JDI, mJDI12, wJDI9 score a and nutrient intakes (n = 2221)
| Crude | Energy-adjusted | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| JDI | mJDI12 | wJDI9 | JDI | mJDI12 | wJDI9 | |||||||
| 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) | ||||||
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
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)
cSaturated fatty acid (g)/all fatty acid (g) × 100%