From: SARS-CoV-2 quantitative real time PCR and viral loads analysis among asymptomatic and symptomatic patients: an observational study on an outbreak in two nursing facilities in Campania Region (Southern Italy)
Total
Presence of comorbidity
X2
p value
OR
OR 95% CI
n
%
Symptom presence and development
71
49
69
15.41
<0.0001
8.9
2.6 -29.7
Symptom absence
20
4
91
53
58.2