Table 2.
Description of sleep timing variables for HCHS/SOL target population overall and by Hispanic/Latino background groups.
| All | Mexican | Cuban | Puerto Rican | Dominican | Central American | South American | Other | |
|---|---|---|---|---|---|---|---|---|
| Weekly average bedtimed | 23.4 (23.3–23.5) | 23.0 (23.0–23.1) | 23.6 (23.5–23.7) | 23.7 (23.4–23.9) | 23.8 (23.6–23.9) | 23.4 (23.3–23.5) | 23.6 (23.4–23.8) | 23.9 (23.6–24.3) |
| Weekly average wake timed | 7.5 (7.4–7.5) | 7.1 (7.0–7.2) | 7.7 (7.6–7.8) | 7.8 (7.6–8.1) | 7.7 (7.6–7.9) | 7.4 (7.2–7.5) | 7.4 (7.2–7.6) | 7.9 (7.5–8.2) |
| Weekly average midsleep pointb,d | 3.4 (3.4–3.5) | 3.1 (3.0–3.1) | 3.7 (3.6–3.8) | 3.7 (3.6–3.9) | 3.7 (3.6–3.9) | 3.4 (3.3–3.5) | 3.5 (3.3–3.7) | 3.9 (3.6–4.2) |
| Mean chronotypec,d | 4.0 (3.9–4.0) | 3.6 (3.5–3.6) | 4.2 (4.1–4.3) | 4.4 (4.3–4.6) | 4.3 (4.1–4.5) | 4.0 (3.9–4.2) | 4.0 (3.8–4.2) | 4.6 (4.3–5.0) |
| Weekly average sleep durationd | 8.0 (7.9–8.0) | 8.0 (8.0–8.1) | 8.1 (8.0–8.2) | 7.8 (7.7–7.9) | 7.9 (7.8–8.0) | 8.0 (7.9–8.0) | 7.8 (7.7–7.9) | 7.8 (7.5–8.0) |
Abbreviations: CI, confidence interval; HCHS/SOL, Hispanic Community Health Study/Study of Latinos.
aValues are presented as means (95% CI) or proportions (95% CI). Values were weighted for survey design and nonresponse and adjusted to mean age and male sex.
bmidsleep = waketime−0.5*time in bed.
cAverage midsleep on weekends minus 0.5 × (sleep duration on weekends − [(5 × sleep duration on weekdays + 2 × Sleep duration on weekends)/7]).
d p < .001; comparisons across Hispanic/Latino groups were performed using the overall Wald test.