TABLE 3.

Results from multilevel models of inter‐ and intra‐individual associations between night‐time sleep and physical activity during the following day, while adjusting for covariates

Predictors	Overall activity (counts per min)		Light activity (min)
	Estimates	CI (95%)	Estimates	CI (95%)
Bedtime
Inter‐individual	−19.34  *	−38.34 to −0.33	−12.94	−30.12 to 4.24
Intra‐individual	−1.79	−7.19 to 3.61	−2.76	−7.01 to 1.49
Wake‐up time
Inter‐individual	−29.99  **	−50.60 to −9.38	−28.85  **	−46.97 to −10.73
Intra‐individual	−5.72  *	−10.85 to −0.58	−12.55  ***	−16.49 to −8.61
Total sleep time
Inter‐individual	−0.23	−0.62 to 0.17	−0.31	−0.65 to 0.04
Intra‐individual	−0.04	−0.12 to 0.04	−0.11  ***	−0.18 to −0.05
Sleep efficiency
Inter‐individual	−4.15  *	−7.91 to −0.38	−2.95	−6.34 to 0.45
Intra‐individual	0.16	−0.60 to 0.91	0.10	−0.50 to 0.69
Wake after sleep onset
Inter‐individual	0.97	−0.15 to 2.09	0.57	−0.44 to 1.58
Intra‐individual	−0.12	−0.34 to 0.10	−0.23  *	−0.40 to −0.05
Sleep onset latency
Inter‐individual	0.14	−1.06 to 1.35	0.02	−1.05 to 1.09
Intra‐individual	−0.05	−0.24 to 0.15	−0.10	−0.25 to 0.06

All models were adjusted for age, depression scores and weekday (weekend versus weekday). The bold values indicate the significant associations.

706 daily observations were clustered in 63 participants.

Abbreviation: CI (95%), 95% confidence interval.

^* p < .05.

^** p < .01

^*** p<.001.