TY - JOUR T1 - Diagnostic accuracy of a clinical diagnosis of idiopathic pulmonary fibrosis: an international case–cohort study JF - European Respiratory Journal JO - Eur Respir J DO - 10.1183/13993003.00936-2017 VL - 50 IS - 2 SP - 1700936 AU - Simon L.F. Walsh AU - Toby M. Maher AU - Martin Kolb AU - Venerino Poletti AU - Richard Nusser AU - Luca Richeldi AU - Carlo Vancheri AU - Margaret L. Wilsher AU - Katerina M. Antoniou AU - Jüergen Behr AU - Elisabeth Bendstrup AU - Kevin Brown AU - Lucio Calandriello AU - Tamera J. Corte AU - Vincent Cottin AU - Bruno Crestani AU - Kevin Flaherty AU - Ian Glaspole AU - Jan Grutters AU - Yoshikazu Inoue AU - Maria Kokosi AU - Yasuhiro Kondoh AU - Vasileios Kouranos AU - Michael Kreuter AU - Kerri Johannson AU - Eoin Judge AU - Brett Ley AU - George Margaritopoulos AU - Fernando J. Martinez AU - Maria Molina-Molina AU - António Morais AU - Hilario Nunes AU - Ganesh Raghu AU - Christopher J. Ryerson AU - Moises Selman AU - Paolo Spagnolo AU - Hiroyuki Taniguchi AU - Sara Tomassetti AU - Dominique Valeyre AU - Marlies Wijsenbeek AU - Wim Wuyts AU - David Hansell AU - Athol Wells A2 - , Y1 - 2017/08/01 UR - http://erj.ersjournals.com/content/50/2/1700936.abstract N2 - We conducted an international study of idiopathic pulmonary fibrosis (IPF) diagnosis among a large group of physicians and compared their diagnostic performance to a panel of IPF experts.A total of 1141 respiratory physicians and 34 IPF experts participated. Participants evaluated 60 cases of interstitial lung disease (ILD) without interdisciplinary consultation. Diagnostic agreement was measured using the weighted kappa coefficient (κw). Prognostic discrimination between IPF and other ILDs was used to validate diagnostic accuracy for first-choice diagnoses of IPF and were compared using the C-index.A total of 404 physicians completed the study. Agreement for IPF diagnosis was higher among expert physicians (κw=0.65, IQR 0.53–0.72, p<0.0001) than academic physicians (κw=0.56, IQR 0.45–0.65, p<0.0001) or physicians with access to multidisciplinary team (MDT) meetings (κw=0.54, IQR 0.45–0.64, p<0.0001). The prognostic accuracy of academic physicians with >20 years of experience (C-index=0.72, IQR 0.0–0.73, p=0.229) and non-university hospital physicians with more than 20 years of experience, attending weekly MDT meetings (C-index=0.72, IQR 0.70–0.72, p=0.052), did not differ significantly (p=0.229 and p=0.052 respectively) from the expert panel (C-index=0.74 IQR 0.72–0.75).Experienced respiratory physicians at university-based institutions diagnose IPF with similar prognostic accuracy to IPF experts. Regular MDT meeting attendance improves the prognostic accuracy of experienced non-university practitioners to levels achieved by IPF experts.Academic status, access to MDT meetings and clinician experience predict accuracy of a clinical diagnosis of IPF http://ow.ly/k43W30cTMg1 ER -