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. 2017 May 25;73(1):88–94. doi: 10.1093/gerona/glx070

Table 1.

Baseline Subject Characteristics by Tertile of Animal Protein Intake

Total animal protein food servings per daya
Men Women
Characteristics <6 6 to <8 ≥8 <5 5 to <7 ≥7
n = 287 n = 331 n = 398 n = 342 n = 558 n = 433
(mean ± s.d.) (mean ± s.d.)
Age (years) 53.7 ± 9.6 54.0 ± 9.7 51.5 ± 10.1 53.2 ± 9.6 52.0 ± 9.9 51.5 ± 9.8
BMI (kg/m2) 27.7 ± 3.3 27.1 ± 3.1 26.6 ± 3.1 27.6 ± 5.6 25.4 ± 4.4 24.8 ± 3.7
Physical activity index 13.5 ± 10.1 13.7 ± 9.4 14.6 ± 11.2 13.5 ± 9.2 13.4 ± 9.1 13.4 ± 8.8
Cigarettes/day 3.4 ± 9.0 4.5 ± 10.4 5.1 ± 11.2 4.5 ± 9.5 3.8 ± 9.5 4.1 ± 9.1
Alcohol intake (gm/day) 13.4 ± 18.4 14.6 ± 17.0 16.9 ± 18.0 5.6 ± 9.0 6.8 ± 9.0 8.0 ± 11.7
Grains, servings/day 6.4 ± 2.2 6.7 ± 2.3 7.1 ± 2.4 5.2 ± 1.8 5.1 ± 1.8 5.3 ± 1.9
Fruit, servings/day 1.5 ± 1.2 1.4 ± 1.1 1.4 ± 1.2 1.3 ± 1.0 1.2 ± 0.9 1.3 ± 0.9
Calcium (mg/day) 687 ± 243 761 ± 267 935 ± 370 551 ± 200 638 ± 218 748 ± 310
Vitamin D (mcg/day) 4.49 ± 2.37 5.51 ± 3.54 7.15 ± 3.49 3.48 ± 1.74 4.40 ± 2.04 5.62 ± 3.00
Energy (kcals/day) 1905 ± 423 2138 ± 441 2473 ± 510 1449 ± 316 1609 ± 356 1842 ± 410
Protein (gm/kg) 0.83 ± 0.17 1.04 ± 0.16 1.33 ± 0.23 0.76 ± 0.17 1.01 ± 0.16 1.34 ± 0.25
Leucine (mg/kg) 63.7 ± 13.3 80.3 ± 11.9 103.5 ± 18.4 58.3 ± 12.9 78.6 ± 12.7 104.9 ± 20.1
Fat (% kcals/day) 33.5 ± 6.2 35.1 ± 6.4 35.8 ± 6.1 33.4 ± 6.6 35.1 ± 6.4 35.6 ± 6.9
Carb (% kcals/day) 49.6 ± 7.3 45.7 ± 7.5 42.8 ± 7.3 51.2 ± 8.1 47.0 ± 7.3 43.9 ± 7.3
column percent column percent
Education (% college) 40.1% 38.1% 38.1% 23.4% 22.0% 24.3%

Note: aTotal animal food servings combined equaling the sum of all servings of red meat, poultry, fish, eggs, milk, yogurt, and cheese.