Data Acquisition

A retrospective study was conducted by pediatric infectious disease specialists from 32 different hospitals from all over Turkey by case record forms. Patients were diagnosed by pediatricians according to the guidelines developed by the Turkish Republic, Ministry of Health. Case definitions, either suspected or confirmed, (10).

Pediatric cases who were diagnosed as COVID-19 between March 16, 2020, and June 15, 2020 were included. Diagnosis was confirmed by nasopharyngeal and oropharyngeal polymerase chain reaction (PCR). After diagnosis, the clinical and laboratory data of cases were extracted from patient records and database. Case characteristics including age, sex, dates of disease onset and diagnosis, family, and contact information were recorded. Clinical data, including the duration and severity of symptoms, were also collected. Laboratory parameters like biochemical tests and complete blood count, chest X-ray, and chest computerized tomography (CT) were recorded.

Finally, respiratory support (if present) and the duration of hospitalization were also determined. Data were entered by the participating pediatric infectious disease specialists.