Table 4.
Associations of predictors and covariates with proxies of sleep behavior as the dependent variable
| TST | Onset latency | Nighttime awakenings | ||||
|---|---|---|---|---|---|---|
| β (SE) | p | β (SE) | p | β (SE) | p | |
| Glycemic variability | ||||||
| Intercept | 540.42 (82.94) | <.0001 | 31.19 (15.50) | .05 | 42.25 (14.77) | .01 |
| GV | 0.53 (0.31) | .09 | 0.13 (0.06) | .03 | 0.08 (0.05) | .16 |
| Weekday | 63.98 (36.21) | .08 | −8.83 (6.71) | .19 | 9.34 (5.96) | .12 |
| GV × Weekday | −0.65 (0.37) | .08 | 0.13 (0.07) | .07 | 1.72 (0.94) | .01 |
| Average blood glucose | ||||||
| Intercept | 614.47 (96.04) | <.0001 | 10.88 (17.77) | .55 | 52.36 (17.14) | .01 |
| BP | 0.07 (0.29) | .81 | −0.06 (0.05) | .32 | 0.01 (0.05) | .98 |
| WP | −0.09 (0.24) | .71 | −0.06 (0.04) | .18 | −0.06 (0.04) | .13 |
| Weekday | 0.81 (12.61) | .95 | 2.19 (2.33) | .35 | −0.26 (0.22) | .91 |
| WP avg BG × Weekday | −0.02 (0.29) | .95 | 0.04 (0.06) | .48 | 0.06 (0.05) | .26 |
Bolded values indicate beta weights with p < .05. All models controlled for age, number of blood glucose checks, hemoglobin A1c, and the number of minutes each child engaged in moderate-to-vigorous physical activity. The variable “Weekday” was coded as a dichotomous variable such that weekdays ( Monday, Tuesday, Wednesday, and so forth) were coded as 1 and weekend days (i.e., Sunday and Saturday) were coded as 0.
BP between person; GV glycemic variability; TST total sleep time; WP within person.