title: Concordance between automated oscillometric measurement of ankle-brachial index and traditional measurement by eco-Doppler in patients without peripheral artery disease.
abstract: OBJECTIVE
  To evaluate the concordance between automated oscillometric measurement (WatchBP® Office ABI) of the ankle- brachial index (ABI) and the traditional measurement by eco-Doppler in a Spanish population without peripheral artery disease attended in primary care.
  
  
  METHODS
  The ABI was determined by both methods in a general population aged ≥ 18 years, from the RICARTO study. The intraclass correlation coefficient was calculated to assess the concordance between both techniques and the Bland-Altman plot was determined to analyze the agreement between them.
  
  
  RESULTS
  A total of 322 subjects (mean age 47.7 ± 16.0 years; 54.3% women) were included in the study. With regard to cardiovascular risk factors, 70.5% of subjects had dyslipidemia, 26.7% hypertension, 24.8% obesity, 8.4% diabetes and 25.5% were smokers. Mean ABI measured by eco-Doppler and the automated method were 1.17 ± 0.1 and 1.2 ± 0.1, respectively (mean differences - 0.03 ± 0.09; p < 0.001). The Pearson correlation coefficient and the intraclass correlation coefficient were in both cases 0.70.
  
  
  CONCLUSIONS
  The automated oscillometric measurement of ABI is a reliable and useful alternative to conventional eco-Doppler determination in the general population without peripheral artery disease attended in primary care.
authors.affiliation: Primary Care Center La Puebla de Montalbán , Toledo , Spain.
authors.forename: Gustavo C
authors.initials: GC
authors.lastname: Rodriguez-Roca
authors.forename: Alejandro
authors.initials: A
authors.lastname: Villarín-Castro
authors.forename: Javier
authors.initials: J
authors.lastname: Carrasco-Flores
authors.forename: Luis M
authors.initials: LM
authors.lastname: Artigao-Rodenas
authors.forename: Julio A
authors.initials: JA
authors.lastname: Carbayo-Herencia
authors.forename: Carlos
authors.initials: C
authors.lastname: Escobar-Cervantes
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Alonso-Moreno
authors.forename: Antonio
authors.initials: A
authors.lastname: Segura-Fragoso
authors.forename: Manuel
authors.initials: M
authors.lastname: Gómez-Serranillos
authors.forename: Julio
authors.initials: J
authors.lastname: Hernández-Moreno
mesh_terms: D000328:Adult; D000368:Aged; D055109:Ankle Brachial Index; D001794:Blood Pressure; D003920:Diabetes Mellitus / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D050171:Dyslipidemias / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D005260:Female; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D009991:Oscillometry; D058729:Peripheral Arterial Disease; D011320:Primary Health Care; D013030:Spain; D018608:Ultrasonography, Doppler
keywords: Ankle–brachial index; peripheral artery disease; primary care