. Author manuscript; available in PMC: 2018 Jun 24.

Published in final edited form as: Appl Hum Factors Ergon Conf. 2017 Jun 24;2017:242–250. doi: 10.1007/978-3-319-60441-1_24

Table 2.

Standardized regression coefficients for predicting the effects of sleep quality on driving outcomes given person-factors: disease status, impulsivity, and cognitive function

Outcomes:	Disease status	Impulsivity	Cognitive Function
Within-person effect of TST on:
Lateral control (<45mph)	.07	.07	−.04
Longitudinal control (<45mph)	.05	−.01	−.04
Average Speed (<45mph)	.16	.13	.06
Lateral control (>=45mph)	.22⁺	.02	−.05
Longitudinal control (>=45mph)	.00	−.09	.01
Average Speed (>=45mph)	.01	−.15	−.07
Distraction Rate	.28^*	−.08	.07
Attention to the driving task	.19⁺	−.02	.23^*
Non-driving related attention	.32^*	.08	.14
Within-person effect of WASO on:
Lateral control (<45mph)	−.05	−.16	.07
Longitudinal control (<45mph)	.02	−.22^*	−.02
Average Speed (<45mph)	.02	−.13	.26^*
Lateral control (>=45mph)	−.18⁺	−.13	.14
Longitudinal control (>=45mph)	−.25^*	−.13	−.10
Average Speed (>=45mph)	−.08	−.02	−.14
Distraction Rate	−.20⁺	.19⁺	−.01
Attention to the driving task	−.01	−.05	−.09
Non-driving related attention	−.06	.01	.05

⁺

p < .10,

p <.05 or better.

Abbrv. TST = Total Sleep Time, WASO = Wake Minutes After Sleep Onset