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Table 1 Eligibility criteria of references to be included in the systematic review of prediction models to diagnose COVID-19 from the start of the epidemic to March 2021

From: A systematic review of prediction models to diagnose COVID-19 in adults admitted to healthcare centers

Inclusion criteria Exclusion criteria
Prediction model studies for diagnosis of COVID-19
Peer-reviewed original studies
Population included patients with suspected infection, aged 18 years old and over
Medical setting
English language
Publication date from May 1st 2020 to January 4th 2021
Studies without primary data
Studies which developed a prognostic model
Studies presenting epidemics modelling
Ecological studies
Interventional studies
Studies with a disease-specific sample
Preprint articles
Review articles
Protocols