Sustained Impairment in Cardiopulmonary Exercise Capacity Testing in Patients after COVID-19: A Single Center Experience
Table 2
Comparators of non-CPET values.
Variables
Overall cohort
In %
Nonlimited CPET1
In %
Limited CPET1
In %
value
n = 30
n = 19
n = 11
Sex
0.442a
Female
12
40
9
47
3
27
Male
18
60
10
53
8
73
Age
0.050b
Mean (±SD)
52 (±14)
55 (±14)
45 (±11)
BMI
0.263b
Mean (±SD)
27 (±6)
26 (±7)
28 (±3)
Patient care
1.000a
Outpatient care
9
30
6
32
3
27
Inpatient care
21
70
13
68
8
73
COVID-19 severity
0.582c
Mild/moderate
9
30
6
32
3
27
Severe
18
60
12
63
6
55
Critical
3
10
1
5
2
18
Ventilatory support
0.366a
Noninvasive vent.
2
7
1
5
1
9
Invasive vent.
1
3
0
0
1
9
mMRC dyspnea sc.
0.497c
mMRC 0
8
27
6
32
2
18
mMRC 1
20
67
12
63
8
73
mMRC 2
2
7
1
5
1
9
mMRC 3-4
0
0
0
0
0
0
FEV1
0.746b
Mean (±SD)
98 (±14)
98 (±16)
99 (±11)
FVC
0.106b
Mean (±SD)
100 (±16)
103 (±17)
94 (±12)
values: a = Fisher’s exact test, b = Student’s t-test of unpaired values, c = Mann-Whitney U-test; mean (±SD) = mean ± standard deviation; mMRC = modified medical research council dyspnea scale; FEV1 = forced expiratory volume in one second; FVC = forced vital capacity.