Table 1.
Baseline demographics and characteristics.
| Variables | NFL (n=257) |
NHANES (n=1539) |
P-Value |
|---|---|---|---|
| Age (years) | 53.9±1.0 | 52.9±0.4 | 0.35 |
| BMI (kg/m2) | 32.3±0.3 | 30.0±0.1 | <0.001 |
| Race | |||
| White (%) | 52 | 53 | 0.67 |
| Black (%) | 47 | 22 | <0.001 |
| Other (%) | 1 | 24 | <0.001 |
| Systolic blood pressure (mmHg) | 133.5±1.1 | 126.5±0.5 | <0.001 |
| Diastolic blood pressure (mmHg) | 80.0±0.7 | 72.7±0.3 | <0.001 |
| Hypertension (%) | 37.8 | 21.4 | <0.001 |
| Overweight (%) | 33.9 | 53.1 | <0.001 |
| Obesity (%) | 63.7 | 40.5 | <0.001 |
| Total cholesterol (mg/dL) | 183.4±4.1 | 195.3±1.5 | 0.02 |
| Triglycerides (mg/dL) | 149.8±12.7 | 168.0±4.7 | <0.001 |
| HDL concentration (mg/dL) | 44.0±0.8 | 47.0±0.3 | <0.001 |
| LDL concentration (mg/dL) | 121.4±2.3 | 117±1.3 | 0.16 |
| Fasting glucose (mg/dL) | 101.1±1.8 | 109.6±1.0 | <0.001 |
| History of diabetes (%) | 7.0 | 12.4 | 0.03 |
| History of smoking (%) | 4.3 | 57.6 | <0.001 |
| Apnea-hypopnea index (events/hour) | 16.6±1.0 | * | |
| SDB (%) | 52.3 | * |
Abbreviations: BMI, body mass index; SDB, sleep-disordered breathing.
Data are presented as mean ± SD for continuous variable and % for categorical variables. Obesity was defined as a BMI of ≥30 kg/m2, and overweight as a BMI of 25 to 29.9 kg/m2.
*
The NHANES group did not undergo sleep evaluation to diagnose SDB.