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Uptake of atrial fibrillation screening aiming at stroke prevention: geo-mapping of target population and non-participation

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Author

Summary, in English

Background: In a screening study for silent atrial fibrillation (AF), which is a frequent source of cardiac emboli with ischemic stroke, the proportion of non-participants was considerable and their clinical profile differed from the participants' profile. We intended to geo-map the target population and non-participation in an attempt to understand factors related to screening uptake and, thereby, obtain useful information needed to intervene for improved uptake. Method: In the municipality of Halmstad, Sweden, all residents born in 1934-1935 were invited to the screening study during April 2010 to February 2012. The total study group included 848 participants and 367 non-participants from 12 parishes. Geo-maps displaying participation, along with target-population-based geo-maps displaying proportion of immigrants and ischemic stroke incidence, were used. Results: Smoothed non-participation ratios (SmNPR) varied from 0.81 to 1.24 across different parishes (SmNRP = 1 corresponds to the expected participation based on the total study group). Among high risk individuals, the geographical variation was more pronounced (SmNPR range 0.75-1.51). Two parishes with higher share of immigrants and elevated population-based ischemic stroke incidence showed markedly lower participation, particularly among high-risk individuals. Conclusion: AF screening uptake varied evidently between parishes, particularly among high-risk individuals. Geo-mapping of target population and non-participation yielded useful information needed to intervene for improved screening uptake.

Publishing year

2013

Language

English

Publication/Series

BMC Public Health

Volume

13

Document type

Journal article

Publisher

BioMed Central (BMC)

Topic

  • Public Health, Global Health, Social Medicine and Epidemiology

Keywords

  • Atrial fibrillation
  • Screening
  • Participation
  • Stroke prevention

Status

Published

ISBN/ISSN/Other

  • ISSN: 1471-2458