Table 3.

Univariable logistic regression to analyze the predictive value of demographic data, clinical data and comorbidities on the primary endpoint (positive vs. negative outcome).

parameter	group 1 (n = 31)	group 2 (n = 33)	odds ratio		p-value
age	55.4 (SD 14.3)	58.85 (SD 14.66)	1.02 (95 %-CI:0.98,1.05)		0.341
time between symptom onlapse and first CT scan (days)	7 (IQR 5−8.5)	7 (IQR 5−7)	0.89 (95 %-CI:0.71,1.1)		0.296
gender
male	17 (42 %)	23 (58 %)
female	14 (58 %)	10 (42 %)	0.53 (95 %-CI:0.19,1.46)		0.222
symptoms
fever*
no	6 (38 %)	10 (62 %)
yes	25 (53 %)	22 (47 %)	0.53 (95 %-CI:0.16,1.66)		0.282
cough*
no	6 (46 %)	7 (54 %)
yes	23 (48 %)	25 (52 %)	0.93 (95 %-CI:0.26,3.21)		0.91
dyspnea*
no	13 (68 %)	6 (32 %)
yes	16 (39 %)	25 (61 %)	3.39 (95 %-CI:1.1,11.38)		0.038
fatigue*
no	5 (38 %)	8 (62 %)
yes	17 (50 %)	17 (50 %)	0.63 (95 %-CI:0.16,2.27)		0.48
gastrointestinal*
no	16 (48 %)	17 (52 %)
yes	5 (42 %)	7 (58 %)	1.32 (95 %-CI:0.35,5.27)		0.686
taste dysfunction*
no	18 (55 %)	15 (45 %)
yes	4 (36 %)	7 (64 %)	2.1 (95 %-CI:0.53,9.34)		0.301
comorbidities
diabetes*
no	27 (48 %)	29 (52 %)
yes	4 (50 %)	4 (50 %)	0.93 (95 %-CI:0.2,4.29)		0.925
cardiac failure*
no	29 (48 %)	32 (52 %)
yes	2 (67 %)	1 (33 %)	0.45 (95 %-CI:0.02,4.97)		0.527
coronary heart disease*
no	28 (48 %)	30 (52 %)
yes	3 (50 %)	3 (50 %)	0.93 (95 %-CI:0.16,5.41)		0.936
COPD*
no	31 (50 %)	31 (50 %)
yes	0 (0%)	2 (100 %)	n.c.		0.493#
asthma*
no	30 (49 %)	31 (51 %)
yes	1 (33 %)	2 (67 %)	1.94 (95 %-CI:0.18,42.94)		0.598
high blood pressure*
no	21 (52 %)	19 (48 %)
yes	9 (39 %)	14 (61 %)	1.72 (95 %-CI:0.61,5)		0.308

COPD = chronic obstructive pulmonary disease.

^*Occasional missing values were counted as patients without symptoms, ^#p-value of Fishers exact test due to quasi separated data.