Table 2.

Linear regression models for univariate associations, predictors and concomitant factors of FACIT fatigue scores.

		Univariate				Model 1: Predictors (n = 907)				Model 2: Concomitant factors (n = 615)
	Characteristic	B	95% CI	Std. beta	p	B	95% CI	Std. beta	p	B	95% CI	Std. beta	p
Sociodemographic	Gender				< 0.001			0.11	< 0.001
	Female	—	—			—	—
	Male	3.48	2.17, 4.80	0.17		2.37	1.11, 3.63
	Age [years]	0.07	0.03, 0.11	0.11	< 0.001	0.08	0.04, 0.12	0.11	< 0.001
	Education				0.683
	< 12 years	—	—
	≥12 years	−0.28	−1.62, 1.06	−0.01
Potential predictors	Any neuropsychiatric disease	−5.76	−7.23, −4.28	−0.24	< 0.001	−1.98	−3.72, −0.24	−0.08	0.026
	Depression disorder	−8.72	−10.82, −6.62	−0.26	< 0.001	−5.03	−7.51, −2.56	−0.15	< 0.001
	Anxiety disorder	−5.21	−8.81, −1.61	−0.09	0.005
	Sleep apnoea	−3.34	−6.51, −0.18	−0.07	0.038	−2.65	−5.65, 0.34	−0.05	0.082
	Chronic kidney disease	0.16	−5.56, 5.88	0.00	0.956
	Cardiovascular disease	0.21	−1.25, 1.68	0.01	0.773
	Tumour disease	−1.79	−7.14, 3.56	−0.02	0.511
	Number of acute COVID symptoms	−0.87	−1.01, −0.73	−0.36	< 0.001	−0.76	−0.91, −0.62	−0.32	< 0.001
	Treatment setting				0.777
	Home isolation	—	—	0.02
	General ward	−0.33	−3.44, 2.78	−0.01
	Intensive care	−1.87	−7.23, 3.49	−0.02
Concomitant factors	Time since diagnosis [days]	0.03	0.02, 0.04	0.16	< 0.001					0.01	0.00, 0.01	0.04	0.062
	Anaemia	1.39	−1.10, 3.88	0.04	0.274
	C−reactive protein [mg/l]	−0.25	−0.45, −0.05	−0.08	0.013
	Cognition (MoCA)	−0.04	−0.30, 0.23	−0.01	0.784
	Depression (PHQ-8)	−1.95	−2.03, −1.86	−0.83	< 0.001					−1.61	−1.74, −1.47	−0.69	< 0.001
	Anxiety (GAD-7)	−1.78	−1.91, −1.65	−0.66	< 0.001
	Sleep (PSQI)	−1.71	−1.86, −1.55	−0.65	< 0.001					−0.51	−0.66, −0.35	−0.19	< 0.001