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. Author manuscript; available in PMC: 2024 Oct 18.
Published in final edited form as: Sleep Health. 2019 Mar 22;5(3):298–308. doi: 10.1016/j.sleh.2019.01.007

Fig. 2.

Fig. 2.

The temporal association between previous night's sleep duration and next-day cognitive interference moderated by type of days. Note. 869-867 days (72% were work days) from 130 employees; 8 consecutive days' data were nested within each employee. In the multilevel model, the effects of same day's and the following day's cognitive interference on nightly sleep duration were simultaneously estimated, and thus the significance of changes in sleep duration with one unit change in cognitive interference was tested. a Using z-scores, this effect can also be expressed as: A 0.07 SD decrease in sleep duration was associated with 1 SD increase in cognitive interference. All analyses adjusted for sociodemographic covariates, work hours, between-person associations, and previous day's sleep duration.