Seven Months after Mild COVID-19: A Single-Centre Controlled Follow-Up Study in the District of Constance (FSC19-KN)
Table 3
Physical performance, health-related quality of life, and functional outcome.
SARS-CoV-2 n = 206
Control n = 206
Difference in means/odds ratio
Missing values, SARS-CoV-2/control
6-minute walk-test results
Walk distance (meters)
590.8 ± 77.7
600.8 ± 92.4
−10.4 [−26.6; 6.5]
0/3
Walk distance ratio (0-1)
0.97 ± 0.17
0.98 ± 0.16
−0.01 [−0.04; 0.02]
4/3
Borg scales
Borg CR scale (0-10) at rest
0.05 ± 0.24
0.01 ± 0.08
0.04 [0.01; 0.09]
0/1
Borg CR scale (0-10) after stress
0.8 ± 1.23
0.41 ± 0.91
0.39 [0.19; 0.59]
0/1
Borg rating of perceived exertion (6-20)
9.6 ± 2.9
8.7 ± 2.6
0.8 [0.3; 1.4]
0/1
EQ-5D-5L (European quality of life 5-dimension-5-level)
VAS-index-score (%)
83.6±15.2
88.6 ± 12.4
−4.9 [−7.6; −2.3]
0/0
Calculated index-score (0-1)
0.92±0.12
0.95 ± 0.1
−0.03 [−0.05; −0.01]
0/1
SF-36 (short form 36) scores
Physical functioning score (0–100)
88.0±15.3
93.6 ± 10.9
−5.6 [−8.2; −2.9]
11/2
Role functioning/physical score (0–100)
76.0±33.9
92.0 ± 22.7
−16.0 [−21.6; −10.4]
1/0
Role functioning/emotional score (0–100)
73.6±37.8
88.0 ± 27.0
−14.4 [−20.8; −7.9]
10/3
Energy/fatigue score (0–100)
56.8±23.04
67.9 ± 21.5
−11.0 [−15.4; −6.7]
1/0
Emotional well-being score (0–100)
72.8±17.6
81.1 ± 15.2
−8.2 [−11.4; −5.0]
1/0
Social functioning score (0–100)
83.7±22.5
90.7 ± 17.6
−7.0 [−11.0; −3.1]
8/2
Pain score (0–100)
84.9±22.1
90.7 ± 17.2
−5.9 [−9.7; −2.0]
9/2
General health score (0–100)
72.8±21.0
80.1 ± 16.9
−7.3 [−11.0; −3.6]
0/0
PCFS (post-COVID-19 functional status)
PCFS 2/3 (no. (%)
63 (30.6)
30 (14.5)
OR 2.6 [1.6; 4.2]
0/0
Data are given as mean ± standard deviation, and in square brackets, 95% confidence interval is given; significant differences in means/odds ratios are written in bold type.
