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 | P 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.