4. %KDRIs of nutrient intakes in the subject by the number of restricted foods
N Mean SD p N Mean SD p
Energy NRF = 0 31 96.7 33.6 0.640 Vitamin E NRF = 0 31 87.9 34.3 0.237
1 ≤ NRF < 3 12 101.9 38.1 1 ≤ NRF < 3 12 82.9 35.5
NRF ≥3 19 108.8 60.1 NRF ≥ 3 19 114.5 95.0
Total 62 101.5 44.0 Total 62 95.4 61.1
Protein NRF = 0 31 157.3 63.9 0.742 Vitamin B1 NRF = 0 31 115.4 44.5 0.813
1 ≤ NRF < 3 12 163.3 66.9 1 ≤ NRF < 3 12 120.4 48.6
NRF ≥ 3 19 176.8 123.6 NRF ≥ 3 19 126.8 86.7
Total 62 164.6 86.8 Total 62 120.0 60.9
Ca NRF = 0 31 76.7 57.5 0.908 Vitamin B2 NRF = 0 31 101.7 57.6 0.865
1 ≤ NRF < 3 12 83.9 61.7 1 ≤ NRF < 3 12 113.3 66.8
NRF ≥ 3 19 84.2 80.9 NRF ≥ 3 19 108.7 83.4
Total 62 80.5 65.5 Total 62 106.1 67.4
P NRF = 0 31 141.1 62.4 0.947 Niacin NRF = 0 31 98.0 38.0 0.855
1 ≤ NRF < 3 12 144.5 71.7 1 ≤ NRF < 3 12 101.0 40.0
NRF ≥ 3 19 148.2 95.3 NRF ≥ 3 19 105.7 62.8
Total 62 144.0 74.8 Total 62 101.0 46.9
Fe NRF = 0 31 77.9 26.0 0.760 Vitamin B6 NRF = 0 31 172.1 67.5 0.319
1 ≤ NRF < 3 12 72.1 26.7 1 ≤ NRF < 3 12 178.8 77.4
NRF ≥ 3 19 83.1 61.5 NRF ≥ 3 19 215.1 145.5
Total 62 78.4 40.4 Total 62 187.0 100.7
Zn NRF = 0 31 84.6 33.0 0.780 Folate NRF = 0 31 111.7 44.8 0.271
1 ≤ NRF < 3 12 89.3 38.7 1 ≤ NRF < 3 12 117.4 70.6
NRF ≥ 3 19 92.9 53.4 NRF ≥ 3 19 158.4 164.5
Total 62 88.1 41.0 Total 62 127.6 103.0
Vitamin A NRF = 0 31 82.5 39.5 0.602 Vitamin C NRF = 0 31 137.3 76.4 0.027*
1 ≤ NRF < 3 12 81.3 47.6 1 ≤ NRF < 3 12 97.3 65.1
NRF ≥ 3 19 108.6 159.8 NRF ≥ 3 19 228.5 129.6
Total 62 90.6 95.6 Total 62 158.6 149.2
KDRIs: Dietary Reference Intakes for Koreans, SD: standard deviation, NRF: number of restricted foods.