Table 3.
Cross-Sectional Associations Between Sleep Measurements and Cognitive Scores at Wave 2
| Global Cognition Score | Executive Function | Memory | Mini-Mental State Examination | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| β | 95% CI | β | 95% CI | β | 95% CI | β | 95% CI | ||||
| Sleep duration | |||||||||||
| Sleep duration, h† | |||||||||||
| 7 h (ref.) | |||||||||||
| <7 h | −0.04 | (−0.12, 0.04) | −0.07 | (−0.23, 0.08) | 0.11 | (−0.05, 0.28) | −0.14 | (−0.64, 0.36) | |||
| ≥8 h | −0.08 | (−0.17, 0.001) | * | −0.16 | (−0.33, 0.01) | * | 0.03 | (−0.14, 0.21) | −0.53 | (−1.06, 0.008) | * |
| n | 902 | 786 | 786 | 903 | |||||||
| Insomnia symptoms | |||||||||||
| Insomnia symptoms, mean† | 0.003 | (−0.01, 0.02) | 0.0001 | (−0.03, 0.03) | −0.02 | (−0.06, 0.01) | 0.05 | (−0.05, 0.15) | |||
| n | 911 | 792 | 792 | 912 | |||||||
Notes: CI = confidence interval.
* p < .10.
†Models adjusted for sex, education, smoking, acculturation, physical activity, BMI, depressive symptomatology, diabetes, heart disease, antidepressant use, and sleep aids use.