Objectives
To describe clinical characteristics and prognosis related to heart failure (HF) phenotypes in a community-based population by applying a novel algorithm to obtain ejection fractions (EF) from electronic medical records.
Design
Retrospective population-based cohort study.
Setting
Data were collected for all patients with HF in Southwest Sweden. The region consists of three acute care hospitals, 40 inpatient wards, 2 emergency departments, 30 outpatient specialty clinics and 48 primary healthcare.
Participants
8902 patients had an HF diagnosis based on the International Classification of Diseases, Tenth Revision during the study period. Patients