Assessment of the prophylactic effect of chloroquine/hydroxychloroquine on the COVID-19 hospitalization and mortality risk in patients with rheumatic diseases: a large-scale Italian nested case-control study (ITA-COVID: HYDROXYCHLOROQUINE)

ENCePP Code of conduct

No

Data sources

• Data sources (types):
  Administrative healthcare records (e.g., claims)

  Disease registry

Use of a Common Data Model (CDM)

• CDM mapping:
  No

Data quality specifications

• Check conformance:
  Unknown
• Check completeness:
  Unknown
• Check stability:
  Unknown
• Check logical consistency:
  Unknown

Data characterisation

• Data characterisation conducted:
  No