Table 3.
Association between sleep duration and any cardiovascular disease, by age group
| Age < 60 years (n = 22505) |
Age ≥ 60 (n = 7892) |
|||
|---|---|---|---|---|
| Sleep duration (h) | No. at risk (cases)* | Multivariable OR (95% CI)†‡ | No. at risk (cases)* | Multivariable OR (95% CI)†‡ |
| ≤ 5 h | 1911 (147) | 3.08 (2.26-4.20) | 625 (157) | 1.65 (1.28-2.13) |
| 6 h | 5000 (160) | 1.77 (1.33-2.35) | 1369 (258) | 1.14 (0.93-1.40) |
| 7 h | 7154 (119) | 1 (referent) | 1969 (315) | 1 (referent) |
| 8 h | 6914 (145) | 1.38 (1.02-1.87) | 2774 (494) | 1.18 (1.00-1.39) |
| ≥ 9 h | 1526 (57) | 1.81 (1.20-2.75) | 1155 (294) | 1.75 (1.44-2.14) |
*
Unweighted sample size;
†
OR (95% CI): odds ratio (95% confidence interval) from weighted analysis;
‡
Adjusted for sex (men, women), race-ethnicity (non-Hispanic whites, non-Hispanic blacks, Hispanic-Americans, others), smoking (never smoker, former smoker, current someday smoker, current every day smoker), alcohol intake (never drinker, former drinker, current light drinker, current moderate drinker, current heavy drinker), moderate physical activity (times/week), body mass index (kg/m2), diabetes mellitus (absent, present), hypertension (absent, present), depression (absent, chronic, not chronic); P-interaction between sleep duration and age = 1.0.