Table A1.

The Structured Form Was Used for Chart Review.

▪ Clinical Criteria (Please select all symptoms or signs within 10 days) appeared in the list of diagnoses and problems (Check under Diagnosis list) * ▯ Fever ▯ Fever of ≥38 °C ▯ Cough ▯ Severe acute respiratory illness ▯ General weakness/fatigue ▯ Headache ▯ Myalgia ▯ Sore throat ▯ Coryza ▯ Dyspnoea ▯ Anorexia/nausea/vomiting ▯ Diarrhea ▯ Altered mental status ▯ No symptoms or signs were found ▯ Asymptomatic ▯ Anosmia (loss of smell) ▯ Ageusia (loss of taste) ▯ None found ▪ Clinical Criteria (Please select all symptoms or signs) appeared in clinical notes (Check notes in E-Sihi) * ▯ Fever (not specified or less than 38 °C) ▯ Fever of ≥38 °C ▯ Cough ▯ Severe acute respiratory illness ▯ General weakness/fatigue ▯ Headache ▯ Myalgia ▯ Sore throat ▯ Coryza ▯ Dyspnoea ▯ Anorexia/nausea/vomiting ▯ Diarrhea ▯ Altered mental status ▯ No symptoms or signs were found ▯ Asymptomatic ▯ Anosmia (loss of smell) ▯ Ageusia (loss of taste) ▯ None found ▪How many notes did you review for this patient? ▪ Epidemiological criteria (Please select all applicable) (Check notes in E-Sihi) * ▯ Residing or working in a setting with a high risk of transmission of the virus ▯ Residing in or travel to an area with community transmission anytime within the 14 days before symptom onset (e.g., China, Iran) ▯ Working in a health setting, including within health facilities and within households, anytime within the 14 days before symptom onset. ▯ In contact of a probable or confirmed case within the previous 10–14 days ▯ None (No information is documented about epidemiological criteria) ▪ Laboratory test (COVID-19 or COVID-19 Drive-Thru)—check tests or infection control (Check under Labs) * ▯ Positive ▯ Negative ▯ No laboratory test found ▯ No laboratory test was found, but a Report from infection control for a positive laboratory test. ▪ Chest imaging report showing findings suggestive of COVID-19 disease: (Check under imaging in E-Sihi) * ▯ Yes ▯ No ▯ No chest imaging ▪ Your final interpretations (based on WHO guidelines): The SARS-CoV-2 infection final diagnosis based on EHR data review is * ▯ Suspected case ▯ Probable case ▯ Confirmed case ▯ No sufficient evidence