Table 3.

Univariable analyses for prediction of fatigue in ICU-admitted individuals at one year after COVID-19.

Predictor	Univariable analysis
	Odds ratio (95% CI)	P-value
Dependent variable: A total score ≥ 22 of the Swedish Fatigue Assessment Scale (n = 104*)
Age	0.96 (0.92–0.99)	0.042
Female sex (male sex = ref.)	1.54 (0.58–4.21)	0.37
Length of stay in ICU	1.04 (1.00–1.07)	0.032
Hypertension	1.12 (0.50–2.53)	0.79
Diabetes mellitus	1.76 (0.63–4.94)	0.29
Coronary heart disease	1.06 (0.42–2.68)	0.91
Asthma	4.20 (0.50–35.54)	0.19
Sepsis	0.93 (0.42–2.08)	0.85
Embolic event	2.90 (0.33–25.84)	0.34
ARDS	0.90 (0.75–1.08)	0.26
Dependent variable: A physical fatigue score of ≥ 11 of the Swedish Fatigue Assessment Scale (n = 105)
Age	0.99 (0.95–1.02)	0.42
Female sex (male sex = ref.)	1.34 (0.50–3.60)	0.57
Length of stay in ICU	1.06 (1.02–1.11)	0.006
Hypertension	1.87 (0.79–4.40)	0.15
Diabetes mellitus	1.50 (0.53–4.22)	0.45
Coronary heart disease	2.00 (0.72–5.54)	0.18
Asthma	3.31 (0.36–26.78)	0.31
Sepsis	0.59 (0.25–1.35)	0.21
ARDS	0.85 (0.71–1.03)	0.10
Embolic event	2.54 (0.29–22.63)	0.41
Dependent variable: A mental fatigue score of ≥ 11 of the Swedish Fatigue Assessment Scale (n = 104*)
Age	0.96 (0.92–0.99)	0.02
Female sex (male sex = ref.)	1.92 (0.74–4.96)	0.18
Length of stay in ICU	0.98 (0.96–1.00)	0.10
Hypertension	0.75 (0.34–1.65)	0.48
Diabetes mellitus	2.07 (0.77–5.57)	0.15
Coronary heart disease	1.33 (0.54–3.31)	0.54
Asthma	1.32 (0.30–5.85)	0.71
Sepsis	1.18 (0.54–2.57)	0.69
ARDS	0.92 (0.77–1.10)	0.36
Embolic event	1.59 (0.28–9.11)	0.60

CI confidence interval, ICU intensive care unit, ARDS acute respiratory distress syndrome.

*Interval estimation failed to calculate the dichotomized S-FAS total score for one of the 105 participants.

Significant values are given in bold.