Table 2.

Results (F and p) of the mixed model analyses on PSQI score (sleep quality), ISI score (insomnia severity symptoms), total sleep time, sleep onset latency, bedtime, and rise time. The models comprised Survey wave (Survey wave 1, Survey wave 2), Screen exposure (Increased, Unchanged, Reduced) as predictors, their interaction, and age and gender (male, female) as covariates

	PSQI score		ISI score		Total sleep time		Sleep onset latency		Bedtime		Rise time
Predictors and covariates	F	p	F	p	F	p	F	p	F	p	F	p
Survey wave	0.11	0.75	0.75	0.39	1.37	0.24	0.49	0.49	0.10	0.76	0.14	0.71
Screen exposure	29.57	<0.001	32.51	<0.001	6.74	0.001	6.14	0.002	7.14	<0.001	5.26	0.005
Survey wave* Screen exposure	20.29	<0.001	23.70	<0.001	9.07	<0.001	6.70	0.001	30.11	<0.001	20.63	<0.001
Age	46.64	<0.001	0.95	0.33	247.53	<0.001	4.60	0.03	184.86	<0.001	397.50	<0.001
Gender	16.62	<0.001	11.64	<0.001	0.89	0.35	19.14	<0.001	13.01	<0.001	0.02	0.89