Table 2.

Generalized linear regression model coefficients for parent BRIEF GEC T scores, adjusted for device type and covariates.

	BRIEF GEC Parent T Score Generalized Linear Regression (n = 293)
	Device Adjusted				Device and Covariate Adjusted
	beta	SE	P	Std beta	beta	SE	P	Std beta
Average sleep duration (hours)—24-hour period	−2.330	.921	.012	−.156	−3.238	1.037	.002	−0.217
Average nocturnal sleep duration (hours)	−1.998	.959	.038	−.128	−2.618	1.017	.011	−0.168
Sleep fragmentation index	0.271	.114	.018	.177	.278	.125	.026	.182
Average sleep efficiency	−.328	.155	.035	−.163	−.351	.160	.029	−.174

Covariate adjusted: for age, sex, race, maternal education, Neighborhood Socioeconomic Status Index, and study site. All models were adjusted for “device” (Philips vs Actigraph GTX actigraph). Standardized betas are calculated using standardized sleep and outcome values (showing the effect of one standard deviation change of the sleep exposure on the outcome, in standard deviation units). BRIEF GEC = Behavior Rating Inventory of Executive Function Growth Executive Composite.