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. 2022 May 12;152(7):1763–1772. doi: 10.1093/jn/nxac094

TABLE 3.

Nutritional characteristics across tertiles of the DI score among 298 participants from the DONALD (Dortmund Nutritional and Anthropometric Longitudinal Designed) study1

Tertiles of the DI score2
Nutritional characteristics Tertile 1 (n = 99) Tertile 2 (n = 98) Tertile 3 (n = 101) P-trend2,3
Energy, kcal/d 2165 (2078, 2256) 2195 (2107, 2288) 2275 (2184, 2369) 0.226
Carbohydrate, EN% 50.3 (49.3, 51.3) 51.0 (50.0, 52.0) 51.1 (50.2, 52.1) 0.435
Protein, EN% 14.5 (14.1, 14.8) 13.5 (13.1, 13.8) 13.5 (13.2, 13.9) <0.001
Fat, EN% 33.7 (32.8, 34.6) 33.8 (32.9, 34.8) 33.5 (32.6, 34.5) 0.906
Added sugar, EN% 12.4 (11.4, 13.4) 12.4 (11.4, 13.4) 10.5 (9.80, 11.4) 0.005
Total fiber,4 g/1000 kcal 8.82 (8.40, 9.26) 8.89 (8.47, 9.34) 10.0 (9.57, 10.5) <0.001
Fiber from grains,5 g/1000 kcal 3.97 (3.74, 4.21) 4.08 (3.85, 4.34) 4.55 (4.29, 4.82) 0.004
Animal protein, g/1000 kcal 23.0 (22.1, 23.9) 20.3 (19.4, 21.2) 19.2 (18.3, 20.1) <0.001
Saturated fats, g/1000 kcal 16.7 (16.2, 17.2) 16.7 (16.2, 17.2) 16.2 (15.6, 16.7) 0.268
Cholesterol, mg/1000 kcal 116 (111, 122) 108 (102, 113) 100 (95, 106) <0.001
Plant protein, g/1000 kcal 12.8 (12.4, 13.2) 13.0 (12.6, 13.5) 14.2 (13.7, 14.6) <0.001
AP ratio 1.75 (1.56, 1.95) 1.53 (1.37, 1.71) 1.25 (1.12, 1.39) <0.001
Polyunsaturated fats, g/1000 kcal 5.11 (4.89, 5.33) 5.18 (4.96, 5.40) 5.58 (5.36, 5.80) 0.007
Linoleic acid (18:2n–6), g/d 9.06 (8.57, 9.58) 9.35 (8.84, 9.89) 10.3 (9.70, 10.8) 0.007
Arachidonic acid (20:4n–6), mg/d 119 (107, 132) 101 (90.8, 112) 86.6 (78.1, 96.1) <0.001
α-Linolenic acid (18:3n–3), g/d 1.37 (1.29, 1.45) 1.46 (1.38, 1.55) 1.60 (1.51, 1.69) 0.001
EPA (20:5n–3), mg/d 47.9 (38.4, 59.9) 47.1 (37.7, 58.8) 49.6 (39.8, 61.7) 0.946
DHA (22:6n–3), mg/d 83.6 (70.4, 99.4) 79.8 (67.1, 94.9) 94.2 (79.4, 112) 0.386
n–6:n–3 PUFA ratio 0.08 (0.08, 0.09) 0.07 (0.06, 0.07) 0.05 (0.05, 0.06) <0.001
Sodium, g/d 2.78 (2.63, 2.94) 2.76 (2.62, 2.91) 2.76 (2.62, 2.91) 0.978
Potassium, g/d 2.89 (2.77, 3.03) 2.86 (2.73, 2.99) 3.04 (2.91, 3.18) 0.138
Calcium, g/d 0.96 (0.90, 1.03) 0.96 (0.90, 1.02) 1.03 (0.97, 1.10) 0.179
Magnesium, mg/d 316 (300, 332) 320 (304, 337) 350 (332, 368) 0.012
Phosphorus, g/d 1.30 (1.24, 1.37) 1.28 (1.22, 1.34) 1.36 (1.29, 1.43) 0.183
Iron, mg/d 12.2 (11.6, 12.8) 11.6 (11.0, 12.2) 12.7 (12.1, 13.4) 0.058
Zinc, mg/d 10.8 (10.2, 11.4) 10.6 (9.98, 11.2) 11.3 (10.7, 11.9) 0.256
Iodine, μg/d 97.0 (90.5, 104) 88.7 (82.8, 95.1) 95.6 (89.3, 102) 0.159
Vitamin A,6 mg/d 1.23 (1.13, 1.33) 1.22 (1.13, 1.32) 1.28 (1.19, 1.39) 0.639
Vitamin E,7 mg/d 12.2 (11.5, 12.9) 12.9 (12.2, 13.8) 14.4 (13.6, 15.3) 0.001
Thiamin, mg/d 1.15 (1.07, 1.23) 1.14 (1.07, 1.23) 1.19 (1.11, 1.28) 0.647
Riboflavin, mg/d 1.52 (1.42, 1.63) 1.48 (1.38, 1.59) 1.54 (1.43, 1.64) 0.742
Vitamin B-6, mg/d 1.74 (1.62, 1.87) 1.77 (1.65, 1.89) 1.84 (1.71, 1.97) 0.549
Total folic acid, μg/d 371 (349, 395) 375 (352, 398) 423 (398, 450) 0.004
Vitamin D, μg/d 1.54 (1.39, 1.70) 1.70 (1.53, 1.88) 1.82 (1.64, 2.01) 0.071
Vitamin K, μg/d 82.2 (72.8, 92.7) 88.6 (78.5, 99.9) 105 (92.9, 118) 0.018
Vitamin B-12, μg/d 4.64 (4.22, 5.10) 4.40 (4.00, 4.83) 4.44 (4.04, 4.87) 0.705
Alcohol, g/d 0.45 (0.27, 0.72) 0.69 (0.42, 1.12) 0.93 (0.58, 1.50) 0.105
1

Values are adjusted mean estimates (95% CIs) obtained from linear regression. AP ratio, animal to plant protein ratio; DI, dietary index; EN%, percentage of total energy intake.

2

Adjusted for age.

3

P value for trend across tertiles of the dietary index.

4

Total fiber intake.

5

Intake of fiber attributed to intake of grains.

6

Vitamin A equivalents.

7

Vitamin E activity including tocotrienols.