Table 1.
Baseline Characteristics (n=156)
| Mean ± SD or n, (%) | |
|---|---|
| Age (years) | 39.7 ± 9.2 |
|
| |
| Sex | |
| Female | 131, 84% |
| Male | 25, 16% |
|
| |
| Race | |
| White | 122, 78% |
| Black | 22, 14% |
| Other | 12, 8% |
|
| |
| Ethnicity | |
| Hispanic or Latino | 40, 26% |
| Non-Hispanic or Latino | 116, 74% |
|
| |
| BMI (kg/m2) | 34.4 ± 4.2 |
|
| |
| Weight (kg) | 95.4 ± 15.4 |
|
| |
| Energy Intake (kcal/d) | 1805 ± 505 |
|
| |
| MVPA (min/d) | 23.9 ± 25.1 |
|
| |
| Bedtime (hh:mm) | 22:43 ± 01:06 |
|
| |
| Mid-point of sleep (hh:mm) | 03:08 ± 01:11 |
|
| |
| Waketime (hh:mm) | 07:11 ± 01:16 |
|
| |
| Regularity (min) | 75.4 ± 38.1 |
|
| |
| Sleep duration (min/d) | 411 ± 68 |
|
| |
| Time in bed (min/d) | 493 ± 70 |
|
| |
| SOL (min/d) | 14.1 ± 7.5 |
|
| |
| WASO (min/d) | 69.5 ± 41.1 |
|
| |
| Awakenings (events) | 18 ± 9 |
|
| |
| Sleep efficiency (%) | 83.4 ± 6.8 |
BMI- body mass index; SOL- sleep onset latency; WASO- wake after sleep onset; Regularity was defined as the standard deviation of waketime