Consumption of Nuts at Midlife and Healthy Aging in Women
Table 3
Odds of healthy aging, according to frequencies of consumption of specific types of nuts at midlife in the Nurses’ Health Study.
Servings (28 grams for nuts)
<1 per month
1–<4 per month
1–<2 per week
≥2 per week
trend
Peanuts
Healthy agers (n = 5,538), %
39.2
45.6
7.4
7.9
Age-adjusted OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.01 (0.94, 1.07)
1.05 (0.93, 1.18)
1.20 (1.06, 1.35)
0.011
Multivariable-adjusteda OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.00 (0.93, 1.07)
0.96 (0.85, 1.10)
1.08 (0.95, 1.22)
0.524
Multivariable-adjustedb OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
0.99 (0.92, 1.06)
0.94 (0.83, 1.07)
1.04 (0.92, 1.19)
0.960
Peanut butter
Healthy agers (n = 5,538), %
21.5
38.8
14.6
25.2
Age-adjusted OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
0.95 (0.88, 1.03)
0.94 (0.85, 1.04)
0.94 (0.86, 1.03)
0.220
Multivariable-adjusted2 OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.00 (0.92, 1.09)
1.01 (0.90, 1.12)
1.00 (0.91, 1.10)
0.946
Multivariable-adjusted3 OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.00 (0.92, 1.09)
1.00 (0.90, 1.12)
0.99 (0.90, 1.09)
0.839
Walnuts
Healthy agers (n = 5,538), %
51.8
40.1
4.6
3.5
Age-adjusted OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.25 (1.17, 1.33)
1.49 (1.29, 1.73)
1.63 (1.38, 1.93)
<0.0001
Multivariable-adjusteda OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.17 (1.10, 1.26)
1.25 (1.07, 1.47)
1.28 (1.07, 1.53)
<0.0001
Multivariable-adjustedb OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.14 (1.07, 1.22)
1.19 (1.01, 1.39)
1.20 (1.00, 1.44)
0.0001
Other nuts
Healthy agers (n = 5,538), %
47.0
39.1
7.3
6.6
Age-adjusted OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.11 (1.04, 1.19)
1.37 (1.22, 1.55)
1.35 (1.19, 1.53)
<0.0001
Multivariable-adjusteda OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.05 (0.98, 1.13)
1.19 (1.04, 1.36)
1.09 (0.95, 1.25)
0.018
Multivariable-adjustedb OR (95% CIs) of healthy vs usual aging
1.0 (Ref.)
1.03 (0.96, 1.10)
1.14 (1.00, 1.30)
1.03 (0.90, 1.18)
0.205
aLogistic regression model adjusted for age (years), education in 1992 (registered nurse, bachelor’s degree, master, or doctorate), marital status in 1996 (widowed, married, and single/separated/divorced), census tract median income tract (quintiles), BMI (kg/m2; <22, 22–24.9, 25–29.9, and ≥30), energy intake (quintiles), multivitamin use (yes/no), aspirin use (<1, 1–2, or >2 tablets/week), pack-years of smoking (quintiles), physical activity (quintiles of METs-h/week), and physical function impairment in 2000 (yes/no). All covariates were collected in 1998 unless stated otherwise. bLogistic regression model further adjusted for Alternative Healthy Eating Index-2010 score (quintiles) excluding the component of nuts.
