OBJECTIVES: To assess the validity of the diagnoses of atrial fibrillation (AF) and atrial flutter (AFL) for men and women recorded in the Danish National Patient Registry, and to assess the relative distribution of AF and AFL. DESIGN: Review of medical records for incident cases of AF and/or AFL in the Diet, Cancer, and Health cohort study. Participants were enrolled in 1993-97 with 13.6 years of follow-up until 30 December, 2009. RESULTS: The positive predictive value of the combined diagnosis of AF and/or AFL was 92.6% (95% CI 88.8%; 95.2%) with no significant difference between sexes (men 93.7% (133/142), women 90.8% (129/142)). The proportion of AFL either alone or in combination with AF was significantly higher in men than in women (13.5% (18/133) vs. 5.4% (7/129), p =0.03). The positive predictive value of the specified diagnosis of AFL was 57.5% for men (46/80) and 29.6% for women (8/27). CONCLUSIONS: This study shows that the validity of the diagnosis of AF and/or AFL is high and may be used for registry-based studies. A specified diagnosis of AFL was rarely used and was not reliable to distinguish between cases of AF and AFL.
OBJECTIVES: To assess the validity of the diagnoses of atrial fibrillation (AF) and atrial flutter (AFL) for men and women recorded in the Danish National Patient Registry, and to assess the relative distribution of AF and AFL. DESIGN: Review of medical records for incident cases of AF and/or AFL in the Diet, Cancer, and Health cohort study. Participants were enrolled in 1993-97 with 13.6 years of follow-up until 30 December, 2009. RESULTS: The positive predictive value of the combined diagnosis of AF and/or AFL was 92.6% (95% CI 88.8%; 95.2%) with no significant difference between sexes (men 93.7% (133/142), women 90.8% (129/142)). The proportion of AFL either alone or in combination with AF was significantly higher in men than in women (13.5% (18/133) vs. 5.4% (7/129), p =0.03). The positive predictive value of the specified diagnosis of AFL was 57.5% for men (46/80) and 29.6% for women (8/27). CONCLUSIONS: This study shows that the validity of the diagnosis of AF and/or AFL is high and may be used for registry-based studies. A specified diagnosis of AFL was rarely used and was not reliable to distinguish between cases of AF and AFL.
Authors: Jawad H Butt; Ying Xian; Eric D Peterson; Peter Skov Olsen; Rasmus Rørth; Anna Gundlund; Jonas B Olesen; Gunnar H Gislason; Christian Torp-Pedersen; Lars Køber; Emil L Fosbøl Journal: JAMA Cardiol Date: 2018-05-01 Impact factor: 14.676
Authors: Elizabeth Mostofsky; Martin Berg Johansen; Anne Tjønneland; Harpreet S Chahal; Murray A Mittleman; Kim Overvad Journal: Heart Date: 2017-05-23 Impact factor: 5.994
Authors: Jawad Haider Butt; Jonas Bjerring Olesen; Anna Gundlund; Thomas Kümler; Peter Skov Olsen; Eva Havers-Borgersen; David Thein Aagaard; Gunnar Hilmar Gislason; Christian Torp-Pedersen; Lars Køber; Emil Loldrup Fosbøl Journal: JAMA Cardiol Date: 2019-11-01 Impact factor: 14.676
Authors: Elizabeth Mostofsky; Martin Berg Johansen; Søren Lundbye-Christensen; Anne Tjønneland; Murray A Mittleman; Kim Overvad Journal: Eur J Prev Cardiol Date: 2015-12-23 Impact factor: 7.804
Authors: Alvaro Alonso; Bouwe P Krijthe; Thor Aspelund; Katherine A Stepas; Michael J Pencina; Carlee B Moser; Moritz F Sinner; Nona Sotoodehnia; João D Fontes; A Cecile J W Janssens; Richard A Kronmal; Jared W Magnani; Jacqueline C Witteman; Alanna M Chamberlain; Steven A Lubitz; Renate B Schnabel; Sunil K Agarwal; David D McManus; Patrick T Ellinor; Martin G Larson; Gregory L Burke; Lenore J Launer; Albert Hofman; Daniel Levy; John S Gottdiener; Stefan Kääb; David Couper; Tamara B Harris; Elsayed Z Soliman; Bruno H C Stricker; Vilmundur Gudnason; Susan R Heckbert; Emelia J Benjamin Journal: J Am Heart Assoc Date: 2013-03-18 Impact factor: 5.501