Table 2.

Total, direct, and indirect effects of perceived stress on depression, anxiety, and panic symptoms via fatigue severity.

Y	Model	b	SE	t	p	LLCI	ULCI
1	PSS→Fatigue (a)	0.20	0.01	15.56	<0.001	0.18	0.23
	Fatigue→Depression (b)	1.02	0.07	15.49	<0.001	0.89	1.15
	PSS→Depression (c)	0.36	0.02	15.08	<0.001	0.32	0.41
	PSS→Depression (c’)	0.16	0.02	6.51	<0.001	0.11	0.20
	PSS→Depression (ab)	0.21	0.02			0.17	0.25
2	Fatigue→Anxiety (b)	0.85	0.06	13.30	<0.001	0.73	0.98
	PSS→Anxiety (c)	0.39	0.02	17.49	<0.001	0.35	0.44
	PSS→Anxiety (c’)	0.22	0.02	9.42	<0.001	0.17	0.27
	PSS→Anxiety (ab)	0.17	0.02			0.14	0.21
3	Fatigue→Panic (b)	0.19	0.01	14.42	<0.001	0.17	0.22
	PSS→Panic (c)	0.06	0.005	13.55	<0.001	0.06	0.07
	PSS→Panic (c’)	0.03	0.005	5.30	<0.001	0.02	0.04
	PSS→Panic (ab)	0.04	0.004			0.03	0.05

Note. →= association; a =Association of X with M; b = association of M with Y; c = Total association of X with Y; c’ = Direct association of X with Y controlling for M; ab= indirect effects of X on Y; Path a is equal in all models; therefore, it presented only in model 1. LLCI=Lower Level Confidence Interval; ULCI=Upper Level Confidence Interval; Fatigue=Brief Fatigue Inventory (BFI; Mendoza et al., 1999); PSS= Perceived Stress Scale-Modified for COVID-19 (PSS; Cohen et al., 1983); Depression= Overall Depression Severity and Impairment Scale (ODSIS; Bentley et al., 2014); Anxiety= Overall Anxiety Severity and Impairment Scale (OASIS; Norman et al., 2006); Panic= Panic Disorder Severity Scale (PDSS; Shear et al., 1997).