Table 1

Baseline patient characteristics

VariableAll
(n=68 056)
NOAC
(n=18 638)
Warfarin
(n=49 418)
Age, mean (median)73.6 (74)73.4 (74)73.7 (75)
Women30 71445.6%45.0%
Married/cohabitant36 19252.9%53.3%
Immigrant762311.5%11.1%
Higher education (>12 years)14 75325.7%20.2%
Income, mean* (median)216 (165)232 (172)209 (163)
Years since first AF diagnosis, mean (median)1.93 (0.04)2.48 (0.08)1.72 (0.03)
CHA2DS2-VASc score, mean (median)3.34 (3)3.24 (3)3.38 (3)
Bleeding history
  Any major bleeding665910.2%9.6%
  Intracranial8821.6%1.2%
  Gastrointestinal22103.4%3.2%
  Other major bleeding42366.4%6.2%
Thromboembolic history
  Ischaemic stroke883813.4%12.8%
  Unspecified stroke4230.7%0.6%
  Systemic embolism6050.7%1.0%
  Transient ischaemic attack41286.1%6.1%
  Pulmonary embolism18671.9%3.1%
Anaemia62678.8%9.4%
Coagulation or platelet defect6880.9%1.1%
Renal failure27682.5%4.7%
Liver disease8661.4%1.2%
Heart failure14 94219.5%22.9%
Hypertension41 88961.1%61.7%
Diabetes12 25316.1%18.7%
Myocardial infarction915010.8%14.4%
Valvular disease65157.6%10.3%
Pacemaker/Implantable cardioverter defibrillator50558.2%7.1%
Thyrotoxicosis within preceding year4990.7%0.8%
Hypothyroidism46426.9%6.8%
Chronic obstructive pulmonary disease50026.8%7.6%
Asthma39245.9%5.7%
Cancer within preceding 3 years60438.6%9.0%
Alcohol index20233.3%2.9%
Dementia10311.9%1.4%
Hospitalised for fall accidents≥2 times28724.8%4.0%
Aspirin, clopidogrel or NSAID at index957212.7%14.6%
  • *Disposable annual income or pension in thousands of Swedish crowns, after taxes and related to number of persons in the household.

  • †Other valvular disease than what is counted as exclusion criteria, for example, mostly mitral regurgitation, aortic sclerosis and/or stenosis common among elderly subjects.

  • ‡Set of diagnostic codes used by the Swedish Board of Health and Welfare for reporting of alcohol-related mortality. See appendix.

  • AF, atrial fibrillation; NOAC, non-vitamin K antagonist oral anticoagulant; NSAID, non-steroidal anti-inflammatory drug.