Table 4.

Main fixed effects of interest within LMEs predicting ISR scores.

	Fixed effect	Estimate	SD	t	p	$R_{{\beta }^{*}}^2$	$R_{{\beta }^{*}}^2$ CI
ISR sum score	Age	−0.01	0.00	−3.65	<0.001	0.01	0.00–0.03
	Difficulties with COVID-19 compliance	0.09	0.02	5.28	<0.001	0.03	0.01–0.05
	Parent, kid not at home	−0.06	0.03	−2.17	0.030	0.00	0.00–0.02
	Reduction in income	−0.04	0.02	−2.14	0.032	0.00	0.00–0.02
	Self-enhancing-humor	−0.01	0.00	−2.70	0.007	0.01	0.00–0.02
	Emotion regulation strategy	0.01	0.00	5.98	<0.001	0.03	0.02–0.06
	Crisis self-efficacy	−0.05	0.00	−11.85	<0.001	0.12	0.08–0.15
	Previous psychological treatment	−0.13	0.02	−6.47	<0.001	0.04	0.02–0.06
ISR depression	Age	−0.01	0.00	−4.04	<0.001	0.02	0.00–0.03
	Reduction in income	−0.06	0.03	−2.47	0.014	0.01	0.00–0.02
	Difficulties with COVID-19 compliance	0.26	0.03	9.93	<0.001	0.09	0.06–0.12
	Self-enhancing-humor	−0.02	0.00	−3.47	<0.001	0.01	0.00–0.03
	Emotion regulation strategy	0.01	0.00	3.75	<0.001	0.01	0.00–0.03
	Crisis self-efficacy	−0.07	0.01	−11.71	<0.001	0.11	0.08–0.15
	Previous psychological treatment	−0.21	0.03	−6.63	<0.001	0.04	0.02–0.07
ISR anxiety	Age	−0.00	0.00	−2.51	0.012	0.01	0.00–0.02
	Sex	−0.04	0.03	−1.50	0.133	0.00	0.00–01
	Reduction in income	−0.04	0.03	−1.50	0.133	0.00	0.00–0.01
	Difficulties with COVID-19 compliance	0.05	0.03	1.95	0.051	0.00	0.00–0.01
	Self-enhancing-humor	−0.01	0.00	−1.59	0.113	0.00	0.00–0.01
	Emotion regulation strategy	0.02	0.00	4.67	<0.001	0.02	0.01–0.04
	Crisis self-efficacy	−0.06	0.01	−10.59	<0.001	0.09	0.06–0.13
	Previous psychological treatment	−0.16	0.03	−5.08	<0.001	0.02	0.01–0.04

LME, Linear Mixed Effect Model; ISR, ICD-10-Symptom-Rating; CI, Confidence Interval.