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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Eur J Heart Fail. 2014 Oct 14;16(12):1372–1376. doi: 10.1002/ejhf.180

Table 1.

Baseline characteristics of 20,278 participants in the Physicians’ Health Study according to chocolate intake

Chocolate intake (servings/week)

Characteristics1 0 <1 1 2–4 5+ P for trend
n 5359 5907 3919 3234 1859
Age (y) 67.0 ± 8.8 66.0 ± 8.9 66.2 ± 9.2 66.2 ± 9.6 66.7 ± 10.1 0.39
BMI (kg/m2) 25.6 ± 3.3 25.9 ± 3.4 25.8 ± 3.2 25.8 ± 3.3 25.6 ±3.3 0.24
White 85.4 91.3 94.2 95.6 95.7 <0.01
Smoking status
  Never 50.0 54.0 56.9 57.8 56.3 <0.01
  Past 46.0 42.9 39.9 38.8 40.0 <0.01
  Current 3.8 3.1 3.2 3.3 3.6 0.47
Alcohol consumption
  Rarely/Never 17.0 15.4 16.8 18.6 20.3 <0.01
  1–3×/month 6.6 7.3 8.0 8.8 8.7 <0.01
  1–6×/week 35.6 38.7 39.4 39.7 37.7 <0.01
  1 or more/day 40.3 38.0 35.1 32.3 32.8 <0.01
Exercise (days per week)
  <1 38.0 37.3 35.8 36.5 37.6 0.20
  1–2 15.3 16.7 17.3 16.3 15.3 0.56
  3–4 28.1 29.2 30.2 30.9 29.1 0.03
  5–7 16.7 15.3 15.1 14.4 16.3 0.08
Prevalent diabetes 11.4 6.5 5.2 5.0 4.8 <0.01
Prevalent hypertension 49.6 46.2 44.4 42.5 43.3 <0.01
Prevalent MI 4.8 3.9 3.0 3.0 3.7 <0.01
Prevalent atrial fibrillation 9.1 7.9 7.9 8.6 8.6 0.50
Calories (kcal) 1534.9 ± 481.1 1626.2 ± 485.5 1705.6 ± 499.8 1795.8 ± 509.5 2033.6 ± 579.9 <0.01
Sodium (mg) 1356.6 ± 528.2 1455.4 ± 532.5 1527.1 ± 546.3 1576.0 ± 541.3 1690.7 ± 607.4 <0.01
Fruits and Vegetables (s/d) 4.8 ± 2.9 4.8 ± 2.6 4.9 ± 2.6 4.9 ± 2.5 5.2 ± 3.0 <0.01
Red Meat (s/d) 0.6 ± 0.6 0.7 ± 0.6 0.7 ± 0.6 0.8 ± 0.6 0.9 ± 0.7 <0.01
1

Data are presented as means ± SD, median (IQR), or percentages. Few participants had missing data: BMI (n=3), race (n=52), smoking (n=14), alcohol (n=117), exercise (n=349), calories (n=894), sodium (n=894), fruit and vegetable intake (n=1), red meat intake (n=21)