Table 1 Demographic and clinical characteristics. Chalder fatigue scale was available for 39 patients and 25 healthy control participants. Possible scores CFQ (0–33) and PHQ-15 (0–30). BMI – body mass index, CFQ – Chalder fatigue scale, PHQ-15 – Patient health questionnaire 15.

From: Increased breathlessness in post-COVID syndrome despite normal breathing patterns in a rebreathing challenge

 

Post-COVID

Control group

BF10

Mean

Range

Mean

Range

Age (years)

40.7

(22–62)

37.35

(24–65)

0.442

Sex (female/male)

23/17

n.a.

25/15

n.a.

n.a.

BMI (kg/m^2)

24.13

(18–34)

23.68

(19–35)

0.265

Symptom duration (months)

18.02

(5–36)

n.a.

n.a.

n.a.

CFQ

25.15

(11–33)

9.96

(2–18)

3.80*1016

PHQ-15

12.75

(4–24)

3.3

(0–10)

1.79*1012

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