Table 5.
Unconditional Univariate Growth Models of Sleep Parameters Moderated by Sex
| Male | Female | |||||||
|---|---|---|---|---|---|---|---|---|
| Intercept mean (µ) |
Intercept variance (σ2) |
Slope mean (µ) |
Slope variance (σ2) |
Intercept mean (µ) |
Intercept variance (σ2) |
Slope mean (µ) |
Slope variance (σ2) |
|
| Sleep minutesa,b | 448.97*** | 1419.02*** | −72.30*** | 2142.59* | 459.56*** | 1194.38*** | −55.94*** | 2269.68** |
| Sleep efficiency | 88.16*** | 24.68*** | 5.99** | 35.35** | 88.16*** | 24.68*** | 5.99** | 35.35** |
| Variability in sleep minutes | 10.75*** | 12.13*** | 7.76*** | 29.50* | 10.75*** | 12.13*** | 7.76*** | 29.50* |
| Variability in sleep efficiency | 5.98*** | 4.34** | −1.06* | 7.10 | 5.98*** | 4.34** | −1.06* | 7.10 |
Intercepts centered at age 9. * = p ≤ .05. ** = p < .01. *** = p < .001.
aIntercepts significantly vary by race.
bSlopes significantly vary by race.