Table 3.

Generalized linear regression model coefficients for 9-Hole Pegboard Test, adjusted for device type and covariates.

	9-Hole Pegboard Test Average of Both Hands (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	3.824	1.007	< .001	.230	−1.135	.841	.178	−.068
Average nocturnal sleep duration (hours)	1.489	1.065	.163	.086	−1.888	.815	.021	−.109
Sleep fragmentation index	0.856	.117	< .001	.501	.341	.098	.001	.200
Average sleep efficiency	−.538	.169	.002	−.240	−.131	.129	.311	−.058

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).