Beta-blockers in patients with heart failure with reduced ejection fraction and concomitant chronic obstructive pulmonary disease: cardiovascular and respiratory outcomes

Data sources

• Data source(s):
  Swedish Cause of Death Register

  Sweden National Prescribed Drugs Register / Läkemedelsregistret
• Data source(s), other:
  Swedish National Patient Register (NPR); Swedish Heart Failure Registry (SwedeHF); Swedish Longitudinal Integrated Database for Health Insurance and Labour (LISA)

Use of a Common Data Model (CDM)

• CDM mapping:
  No

Data quality specifications

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

Data characterisation

• Data characterisation conducted:
  Yes
• Data characterisation moment:
  after data extraction

  after creation of study variables