Table 2.
Odds of healthy aging, according to frequency of total consumption of nuts at midlife in the Nurses' Health Study.
| Servings (28 grams for nuts and 15 grams for peanut butter) | ||||||
|---|---|---|---|---|---|---|
| <1/month | 1–<4/month | 1–<2/week | 2–<3/week | ≥3/week | P trend | |
| Total nuts | ||||||
| Healthy agers (n = 5,538), % | 6.6 | 21.6 | 21.6 | 14.8 | 35.3 | |
| Age-adjusted OR (95% CIs) of healthy vs usual aging | 1.0 (Ref.) | 1.02 (0.90, 1.17) | 1.02 (0.89, 1.16) | 1.05 (0.91, 1.21) | 1.18 (1.04, 1.34) | <0.0001 |
| Multivariable-adjusteda OR (95% CIs) of healthy vs usual aging | 1.0 (Ref.) | 1.07 (0.93, 1.24) | 1.04 (0.90, 1.20) | 1.08 (0.93, 1.25) | 1.14 (1.00, 1.31) | 0.031 |
| Multivariable-adjustedb OR (95% CIs) of healthy vs usual aging | 1.0 (Ref.) | 1.06 (0.92, 1.22) | 1.02 (0.88, 1.17) | 1.05 (0.90, 1.22) | 1.10 (0.96, 1.26) | 0.160 |
|
| ||||||
| Total nuts excluding peanut butter | ||||||
| Healthy agers (n = 5,538), % | 20.8 | 35.2 | 20.2 | 8.2 | 15.6 | |
| Age-adjusted OR (95% CIs) of healthy vs usual aging | 1.0 (Ref.) | 1.12 (1.03, 1.22) | 1.17 (1.07, 1.29) | 1.32 (1.17, 1.49) | 1.46 (1.32, 1.62) | <0.0001 |
| Multivariable-adjusteda OR (95% CIs) of healthy vs usual aging | 1.0 (Ref.) | 1.10 (1.01, 1.20) | 1.08 (0.97, 1.19) | 1.14 (1.00, 1.31) | 1.21 (1.09, 1.35) | 0.001 |
| Multivariable-adjustedb OR (95% CIs) of healthy vs usual aging | 1.0 (Ref.) | 1.08 (0.99, 1.18) | 1.04 (0.94, 1.15) | 1.09 (0.95, 1.25) | 1.14 (1.02, 1.28) | 0.046 |
aLogistic regression model adjusted for age (years), education in 1992 (registered nurse, bachelor's degree, and master or doctorate), marital status in 1996 (widowed, married, and single/separated/divorced), census tract median income (quintiles), BMI (kg/m2; <22, 22–24.9, 25–29.9, and ≥30), energy intake (quintiles of kcal/day), 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 nuts as a component.