Characteristics of study population distributed by neighbourhood SES (n=3591)
| Neighbourhood SES | ||||
|---|---|---|---|---|
| Overall | Low | Medium | High | |
| Total population, %* | 100 | 21.2 | 46.1 | 32.7 |
| Gender, % | ||||
| Female | 54.7 | 22.3 | 44.5 | 33.1 |
| Male | 45.3 | 19.6 | 48.2 | 32.2 |
| Age in years, mean (SE) | 53.5 (0.47) | 52.7 (0.86) | 54.3 (0.73) | 57.1 (0.94) |
| Race/ethnicity, % | ||||
| African-American | 29.4 | 43.2 | 46.0 | 10.8 |
| Hispanic | 13.5 | 37.8 | 44.5 | 17.8 |
| Caucasian | 57.1 | 5.7 | 46.7 | 47.5 |
| SES, % | ||||
| Low | 42.8 | 33.1 | 45.4 | 21.5 |
| Medium | 44.3 | 14.1 | 47.4 | 38.6 |
| High | 12.9 | 5.4 | 45.0 | 49.6 |
| Marital status, % | ||||
| Married | 47.9 | 17.9 | 48.8 | 33.4 |
| Divorced | 27.0 | 24.1 | 43.7 | 32.2 |
| Single/other | 25.1 | 24.3 | 44.4 | 31.3 |
| Sleep duration in hours, mean (SE) | 6.6 (0.04) | 6.4 (0.08) | 6.6 (0.07) | 6.9 (0.09)† |
| Sleep duration category, % | ||||
| Very short (<5 h) | 9.1 | 15.5 | 10.0 | 3.7 |
| Short (5–6.9 h) | 36.7 | 40.5 | 36.9 | 33.9 |
| Normative (7–8.9 h) | 47.3 | 36.2 | 46.6 | 55.5 |
| Long (≥9 h) | 6.9 | 7.8 | 6.4 | 6.9 |
*Per cents are weighted.
†p<0.0001 from multilevel model.
SES, socioeconomic status.