Table 3.
Odds Ratios and 95% CIs of association between evening sleep chronotype and obesity (BMI≥30) in white and black participants
| Race | Chronotype | Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 |
|---|---|---|---|---|---|---|---|
| White | |||||||
| Morning | 1 | 1 | 1 | 1 | 1 | 1 | |
| Neither | 1.31 (0.97–1.77) | 1.31 (0.97–1.78) | 1.33 (0.98–1.81) | 1.32 (0.97–1.80) | 1.29 (0.94–1.76) | 1.30 (0.95–1.79) | |
| Evening | 1.78 (1.10–2.88) | 1.80(1.10–2.93) | 1.93 (1.16–3.22) | 1.89 (1.12–3.20) | 1.86 (1.10–3.14) | 1.91 (1.12–3.25) | |
| Adjusted R2 | 0.011 | 0.015 | 0.058 | 0.077 | 0.082 | 0.084 | |
| Black | |||||||
| Morning | 1 | 1 | 1 | 1 | 1 | 1 | |
| Neither | 0.96(0.62–1.48) | 0.85 (0.54–1.34) | 0.81 (0.50–1.29) | 0.80 (0.50–1.28) | 0.80 (0.50–1.29) | 0.80 (0.49–1.29) | |
| Evening | 1.61 (0.78–3.33) | 1.39 (0.65–2.97) | 1.42 (0.65–3.11) | 1.37 (0.62–3.04) | 1.35 (0.61–3.01) | 1.36 (0.61–3.04) | |
| Adjusted R2 | 0.007 | 0.108 | 0.166 | 0.167 | 0.174 | 0.180 |
CI: Confidence Interval; BMI: Body Mass Index
Model 1: unadjusted.
Model 2: adjusted for sex and age.
Model 3: additionally adjusted for education level, smoking, alcohol use, illicit drug use, depression.
Model 4: additionally adjusted for shift work.
Model 5: additionally adjusted for physical activity level.
Model 6: additionally adjusted for sleep duration.