Table 1 Prioritization of data elements

5

Highly relevant

General core/disease core*

Data element with essential general or specific information relevant to COVID-19

4

Very relevant

Supplemental—highly recommended

Data element that is essential under certain conditions or for certain study types and is therefore strongly recommended

3

Relevant

Supplemental

Data element that is often collected in clinical studies, but whose relevance depends on the study design or type of research

2

Less relevant

Exploratory

Data element that requires further validation, but which can fill current gaps in the data elements and/or replace an existing data element

1

Not relevant

–

Data elements that are not considered relevant to the dataset