Table 3.
Regression results among 25 non-parametric rest-activity and sleep outcomes and timing exposures combinations selected by the correlation analysis. Beta values (confidence intervals).
| Outcomes | ||||||
|---|---|---|---|---|---|---|
| Exposures | In-bed time (hours from midnight) | Out-of-bed time (hours from midnight) | Total sleep time (hours) | L5 midpoint (dec. hours) | M10 midpoint (dec. hours) | |
|
Last exposure to
indoor light |
Model 1 | 1.32 (0.84,1.79) | 1.13 (0.64,1.62) | 1.32 (0.80,1.83) | 1.24 (0.68,1.79) | |
| Model 2 | 1.31 (0.86,1.77) | 1.13 (0.65,1.61) | 1.30 (0.80,1.80) | 1.23 (0.68,1.78) | ||
| First exposure to outdoor light | Model 1 | 0.92 (0.47,1.37) | 1.39 (0.97,1.81) | 0.51 (0.19,0.83) | 1.22 (0.74,1.70) | 0.81 (0.28,1.34) |
| Model 2 | 0.88 (0.43,1.32) | 1.35 (0.94,1.75) | 0.49 (0.18,0.81) | 1.16 (0.69,1.64) | 0.77 (0.23,1.31) | |
| First exposure to indoor light | Model 1 | 1.15 (0.70,1.60) | 1.15 (0.70,1.70) | 1.35 (0.90,1.82) | 0.91 (0.38,1.44) | |
| Model 2 | 1.09 (0.65,1.54) | 1.09 (0.64,1.54) | 1.31 (0.85,1.77) | 0.88 (0.35,1.41) | ||
| Last eating episode | Model 1 | 0.88 (0.42,1.33) | 1.14 (0.70,1.59) | 1.17 (0.69,1.65) | 1.05 (0.53,1.57) | |
| Model 2 | 0.89 (0.44,1.34) | 1.16 (0.73,1.58) | 1.20 (0.73,1.66) | 1.07 (0.56,1.59) | ||
| First eating episode | Model 1 | 0.60 (0.18,1.03) | 0.92 (0.51,1.33) | 0.69 (0.22,1.15) | 0.57 (0.07,1.06) | |
| Model 2 | 0.55 (0.13,0.97) | 0.87 (0.46,1.27) | 0.64 (0.19,1.10) | 0.54 (0.04,1.03) | ||
| Morning PA proportion | Model 1 | −0.95 (−1.38,−0.53) | −0.69 (−1.14,−0.24) | −0.96 (−1.42,−0.49) | −0.92 (−1.41,−0.42) | |
| Model 2 | −0.87 (−1.31,−0.43) | −0.56 (−1.02,−0.10) | −0.86 (−1.34,−0.39) | −0.86 (−1.37,−0.35) | ||
Linear regression models were performed to assess the association between 5 sleep and non-parametric rest-activity outcomes (Top Row) and 6 timing related exposures (left column). Betas (95% Confidence interval) are presented for each cell. Results from 2 models are presented for the first and second row for each exposure. Abbreviations: dec. hours= decimal hours, PA=physical activity
Model 1: age, sex, race/ethnicity, household income, education level, site, BMI (continuous)
Model 2: adjusted for the same covariates as in model 1, in addition to total physical activity (from wrist actigraphy)