Ontology highlight
ABSTRACT:
SUBMITTER: Duque MP
PROVIDER: S-EPMC7925981 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
Epidemiology and infection 20210219
COVID-19, although a respiratory illness, has been clinically associated with non-respiratory symptoms. We conducted a negative case-control study to identify the symptoms associated with SARS-CoV-2-positive results in Portugal. Twelve symptoms and signs included in the clinical notification of COVID-19 were selected as predictors, and the dependent variable was the RT-PCR test result. The χ2 tests were used to compare notified cases on sex, age group, health region and presence of comorbidities ...[more]