Table 1.

Characteristics of participants according to intake of total nut consumption in the NHS and HPFS

Total nut consumption
Tertile 1Tertile 2Tertile 3
Women (NHS)
 Age (year)a59.7 (11.9)60.5 (11.2)61.7 (11.1)
 White, %97.997.497.3
 BMI, kg/m225.4 (4.7)25.2 (4.5)24.6 (4.2)
 Physical activity, MET-hours/week13.6 (13.5)14.9 (14.7)16.7 (16.2)
 Type II diabetes, %6.45.95.0
 Regular aspirin use, %40.140.840.2
 Past smoking, %37.239.441.3
 Current smoking, %18.214.713.2
 Food and nutrient intakes
  Alcohol, g/day4.5 (7.3)5.1 (8.1)6.4 (9.2)
  Total coffee intake, cups/day2.3 (1.7)2.3 (1.6)2.3 (1.6)
  Peanuts, serving/week0.06 (0.41)0.19 (0.44)0.91 (1.37)
  Tree nuts, serving/week0.04 (0.26)0.15 (0.32)0.75 (1.16)
  Walnuts, serving/week0.05 (0.27)0.13 (0.37)0.35 (0.77)
  Peanut butter, serving/week0.8 (1.6)1.1 (1.6)1.5 (1.9)
  Polyunsaturated fat, (% of energy)5.6 (1.1)5.7 (1.0)5.9 (1.1)
Men (HPFS)
 Age (year)a67.8 (12.6)65.2 (12.2)66.7 (12.0)
 White, %95.295.896.1
 BMI, kg/m225.9 (3.6)25.9 (3.5)25.6 (3.4)
 Physical activity, MET-hours/week25.6 (26.7)28.4 (28.2)31.4 (29.3)
 Type II diabetes, %3.64.04.0
 Regular aspirin use, %26.432.233.8
 Past smoking, %30.834.836.6
 Current smoking, %4.54.84.9
 Food and nutrient intakes
  Alcohol, g/day5.7 (1.2)5.8 (1.1)6.2 (1.2)
  Total coffee intake, cups/day9.2 (13.1)10.9 (13.6)12.6 (14.8)
  Peanuts, serving/week0.10 (0.14)0.52 (0.29)2.38 (2.41)
  Tree nuts, serving/week0.07 (0.12)0.41 (0.29)1.60 (1.83)
  Walnuts, serving/week0.06 (0.39)0.18 (0.51)0.50 (1.23)
  Peanut butter, serving/week1.2 (2.2)1.4 (2.1)1.9 (2.6)
  Polyunsaturated fat, (% of energy)5.7 (1.2)5.8 (1.1)6.2 (1.2)
Pooled NHS and HPFS cohorts
 Age (year)a63.1 (12.9)62.0 (11.7)63.2 (11.6)
 White, %96.896.997.0
 BMI, kg/m225.6 (4.3)25.4 (4.2)24.9 (4.0)
 Physical activity, MET-hours/week18.6 (20.9)19.3 (21.1)21.1 (22.0)
 Type II diabetes, %5.15.34.8
 Regular aspirin use, %34.438.138.4
 Past smoking, %34.438.040.0
 Current smoking, %12.911.410.6
 Food and nutrient intakes
  Alcohol, g/day6.5 (10.4)7.0 (10.6)8.2 (11.5)
  Total coffee intake, cups/day2.1 (1.7)2.1 (1.6)2.1 (1.6)
  Peanuts, serving/week0.08 (0.34)0.29 (0.42)1.35 (1.86)
  Tree nuts, serving/week0.05 (0.22)0.23 (0.33)1.00 (1.44)
  Walnuts, serving/week0.06 (0.32)0.14 (0.41)0.39 (0.91)
  Peanut butter, serving/week1.0 (1.9)1.2 (1.8)1.6 (2.2)
  Polyunsaturated fat, (% of energy)5.6 (1.1)5.7 (1.0)6.0 (1.1)
  • NOTE: Values were means (SD) or percentages and were standardized to the age distribution of the study population.

  • aValue was not age adjusted.