Table 1.
Baseline Characteristics
| Variable | Value (n = 140) |
|---|---|
| Age, y, mean ± SD | 27 ± 5 |
| Male sex, n (%) | 8 (57) |
| Race/ethnicity, n (%) | |
| Caucasian | 5 (36) |
| Hispanic | 4 (29) |
| Asian | 4 (29) |
| African-American | 1 (7) |
| Fasting glucose, mg/dL, mean ± SD | 81 ± 7 |
| HOMA-IR, mean ± SD | 2.0 ± 0.6 |
| PSQI score, median | 3.5 |
| Body composition, mean ± SD | |
| BMI, kg/m2 | 24.1 ± 4.1 |
| Total body fat, % total body mass | 24.9 ± 8.1 |
| Truncal fat, % total body fat | 24.8 ± 7.2 |
| LBM, kg | 47.4 ± 10.5 |
| Lipids, mean ± SD | |
| Total cholesterol, mg/dL | 159 ± 21 |
| LDL cholesterol, mg/dL | 89 ± 20 |
| HDL cholesterol, mg/dL | 50 ± 12 |
| TGs, mg/dL | 96 ± 43 |
| Actigraphic sleep duration, mean ± SDa | |
| Minutes | 459 ± 47 |
| Hours | 7.7 ± 0.8 |
Abbreviations: BMI, body mass index; HOMA-IR, homeostasis model assessment of insulin resistance (calculated as fasting insulin [microunits per milliliter] × fasting glucose [millimoles per liter]/22.5); PSQI, Pittsburgh Sleep Quality Index.
a
Nightly sleep duration at home, as measured by actigraph, during screening.