Variables |  | Short (< 6 h) 730 (24.95%) | Medium (6–8 h) 2041 (69.75%) | Long (>8 h) 155(5.30%) | P value |
---|---|---|---|---|---|
Age (years) |  | 53.69 ± 12.51 | 54.37 ± 12.82 | 58.31 ± 13.6 | 0.0002 |
PEA |  | 0.163 ± 0.08 | 0.178 ± 0.09 | 0.173 ± 0.08 | 0.0006 |
Annual household income | |||||
 | <$20,000 | 26.84% | 25.22% | 51.52% | <.0001 |
 | $20,000–50,000 | 38.78% | 37.62% | 28.03% | |
 | >$50,000 | 34.38% | 37.16% | 20.45% | |
Smoking status | |||||
 | Former/never smoker | 83.33% | 87.77% | 81.94% | 0.003 |
 | Current smoker | 16.67% | 12.23% | 18.06% | |
alcohol consumption | |||||
 | Former/never drinker | 49.73% | 51.94% | 66.45% | 0.007 |
 | Current drinker | 50.27% | 48.06% | 33.55% | |
Leptin (ng/mL) |  | 29.61 ± 27.02 | 27.78 ± 23.51 | 29.49 ± 24.23 | 0.185 |
Adiponectin (μg/mL) |  | 5.16 ± 4.22 | 5.30 ± 4.16 | 5.63 ± 4.57 | 0.42 |
BMI (kg/m2) |  | 32.61 ± 7.75 | 31.88 ± 7.34 | 31.38 ± 7.19 | 0.03 |
Normal-weight (BMIÂ <Â 25) | Â | 12.88% | 13.42% | 16.77% | Â |
Overweight/Obese (BMI ≥ 25) |  | 87.12% | 86.58% | 83.23% |  |