Table 2 Patient characteristics on hospital admission. p-values refer to the comparison between the SARS-CoV-2 negative and the SARS-CoV-2 positive patients. ^a presented as median ± standard deviation (range), ^b number of patients (percentage based on the number of all patients), ^c based on Mann-Whitney-U test for nonparametric variables, ^d based on chi-square test / Fisher’s exact test as appropriate for categorical variables

 age [years]

61 ± 16 (25–84) ^a

60 ± 18 (18–95) ^a

0.774 ^c

 sex [male]

22 (56.4%) ^b

51 (53.1%) ^b

0.728 ^d

 BMI [kg/m²]

26.3 ± 6.6 (15.8–52.5) ^a

26.3 ± 6.2 (16.4–46.9) ^a

0.722 ^c

 MAD [mmHg]

101,4 ± 14 (71–145) ^a

98.3 ± 16.6 (58–133) ^a

0.361 ^c

 heart rate [/min]

84.8 ± 16.6 (42–113) ^a

94.8 ± 22 (42–148) ^a

0.034 ^c

 temperature [°C]

37.7 ± 0.9 (36.0–39.4) ^a

37.5 ± 1.0 (35.0–40.1) ^a

0.101 ^c

 fever

30 (23.1%) ^b

44 (45.8%) ^b

0.001 ^d

 cough

26 (66.7%) ^b

35 (36.5%) ^b

0.003 ^d

 dyspnea

25 (64.1%) ^b

57 (59.4%) ^b

0.610 ^d

 chest pain

6 (15.4%) ^b

19 (19.8%) ^b

0.550 ^d

 limb pain

8 (20.5%) ^b

4 (4.2%) ^b

0.002 ^d

 gastrointestinal symptoms

11 (28.2%) ^b

22 (22.9%) ^b

0.517 ^d

 hypertension

19 (48.7%) ^b

43 (44.8%) ^b

0.678 ^d

 chronic heart failure

3 (7.7%) ^b

13 (13.5%) ^b

0.341 ^d

 diabetes

5 (12.8%) ^b

17 (17.7%) ^b

0.611 ^d

 chronic kidney injury

2 (5.1%) ^b

19 (19.8%) ^b

0.037 ^d

 oncological disease

7 (17.9%) ^b

35 (36.5%) ^b

0.035 ^d

 lung disease

4 (10.3%) ^b

33 (34.4%) ^b

0.005 ^d

 smoking (ongoing/ previous)

3 (7.7%) ^b

22 (22.9%) ^b

0.050 ^d

 leukocyte count (tsd/μl) (n = 135)

6.96 ± 4.71 (1.05–26.80)^a

10.57 ± 7.13 (0.44–49.71) ^a

< 0.001 ^c

 platelet count (tsd/μl) (n = 135)

189.46 ± 88.04 (10.00–490.00) ^a

245.05 ± 124.92 (8.00–699.00) ^a

0.010 ^c

 hemoglobin g/dl (n = 135)

13.03 ± 1.98 (8.80–17.10) ^a

11.91 ± 2.49 (4.38–16.40) ^a

0.003 ^c

 creatinine mg/dl (n = 135)

1.09 ± 0.66 (0.37–4.18) ^a

1.31 ± 1.31 (0.49–10.50) ^a

0.627 ^c

 C-reaktive protein mg/l (n = 135)

71.1 ± 77.1 (3.0–291.9) ^a

69.6 ± 82.9 (3.0–374.3) ^a

0.571 ^c

 procalcitonin ng/ml (n = 129)

0.16 ± 0.21 (0.05–0.95) ^a

1.67 ± 8.55 (0.05–81.60) ^a

0.223 ^c

 lactat dehydrogenase U/l (n = 135)

369 ± 216 (141–1108) ^a

285 ± 155 (137–1163) ^a

0.006 ^c

 proBNP (ng/l) (n = 127)

1296 ± 666 (50–18,995) ^a

3004 ± 832 (50–5733) ^a

0.085 ^c

 d-dimer (mg/l) (n = 98)

3.53 ± 1.55 (0.19–35.20)^a

2.17 ± 0.45 (0.19–21.57) ^a

0.945 ^c

 hospital admission

33 (84.6%) ^b

65 (67.7%) ^b

0.046 ^d

 ICU admission

5 (12.8%) ^b

11 (11.5%) ^b

0.777 ^d

 death

6 (15.4%) ^b

6 (6.3%) ^b

0.104 ^d