{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T17:27:09Z","timestamp":1793381229914,"version":"4.5.0"},"reference-count":22,"publisher":"Oxford University Press (OUP)","issue":"1019","license":[{"start":{"date-parts":[[2012,11,1]],"date-time":"2012-11-01T00:00:00Z","timestamp":1351728000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2012,11,1]]},"abstract":"<jats:sec>\n                  <jats:title>Objective<\/jats:title>\n                  <jats:p>The aim of this study was to evaluate reader variability in screening mammograms according to the American College of Radiology Breast Imaging Reporting and Data System (BI-RADS) assessment and breast density categories.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>A stratified random sample of 100 mammograms was selected from a population-based breast cancer screening programme in Barcelona, Spain: 13 histopathologically confirmed breast cancers and 51 with true-negative and 36 with false-positive results. 21 expert radiologists from radiological units of breast cancer screening programmes in Catalonia, Spain, reviewed the mammography images twice within a 6-month interval. The readers described each mammography using BI-RADS assessment and breast density categories. Inter- and intraradiologist agreement was assessed using percentage of concordance and the kappa (\u03ba) statistic.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Fair interobserver agreement was observed for the BI-RADS assessment [\u03ba=0.37, 95% confidence interval (CI) 0.36\u20130.38]. When the categories were collapsed in terms of whether additional evaluation was required (Categories III, 0, IV, V) or not (I and II), moderate agreement was found (\u03ba=0.53, 95% CI 0.52\u20130.54). Intra-observer agreement for BI-RADS assessment was moderate using all categories (\u03ba=0.53, 95% CI 0.50\u20130.55) and substantial on recall (\u03ba=0.66, 95% CI 0.63\u20130.70). Regarding breast density, inter- and intraradiologist agreement was substantial (\u03ba=0.73, 95% CI 0.72\u20130.74 and \u03ba=0.69, 95% CI 0.68\u20130.70, respectively).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>We observed a substantial intra-observer agreement in the BI-RADS assessment but only moderate interobserver agreement. Both inter- and intra-observer agreement in mammographic interpretation of breast density was substantial.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Advances in knowledge<\/jats:title>\n                  <jats:p>Educational efforts should be made to decrease radiologists' variability in BI-RADS assessment interpretation in population-based breast screening programmes.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1259\/bjr\/21256379","type":"journal-article","created":{"date-parts":[[2012,9,20]],"date-time":"2012-09-20T01:34:00Z","timestamp":1348104840000},"page":"1465-1470","source":"Crossref","is-referenced-by-count":147,"title":["Inter- and intraradiologist variability in the BI-RADS assessment and breast density categories for screening mammograms"],"prefix":"10.1093","volume":"85","author":[{"given":"A","family":"Redondo","sequence":"first","affiliation":[{"name":"Servei d'Epidemiologia i Avaluaci\u00f3, Hospital del Mar, Barcelona, Spain"},{"name":"Unitat Docent de Medicina Preventiva i Salut P\u00fablica Hospital del Mar-UPF-ASPB, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Comas","sequence":"additional","affiliation":[{"name":"Servei d'Epidemiologia i Avaluaci\u00f3, Hospital del Mar, Barcelona, Spain"},{"name":"CIBER Epidemiolog\u00eda y Salud P\u00fablica (CIBERESP), Spain"},{"name":"Grup de Recerca en Epidemiologia i Avaluaci\u00f3, IMIM (Institut de Recerca Hospital del Mar), Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F","family":"Maci\u00e0","sequence":"additional","affiliation":[{"name":"Servei d'Epidemiologia i Avaluaci\u00f3, Hospital del Mar, Barcelona, Spain"},{"name":"CIBER Epidemiolog\u00eda y Salud P\u00fablica (CIBERESP), Spain"},{"name":"Grup de Recerca en Epidemiologia i Avaluaci\u00f3, IMIM (Institut de Recerca Hospital del Mar), Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F","family":"Ferrer","sequence":"additional","affiliation":[{"name":"Servei de Radiodiagn\u00f2stic, IDIMAS-CRC-Mar, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C","family":"Murta-Nascimento","sequence":"additional","affiliation":[{"name":"Servei d'Epidemiologia i Avaluaci\u00f3, Hospital del Mar, Barcelona, Spain"},{"name":"CIBER Epidemiolog\u00eda y Salud P\u00fablica (CIBERESP), Spain"},{"name":"Grup de Recerca en Epidemiologia i Avaluaci\u00f3, IMIM (Institut de Recerca Hospital del Mar), Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M T","family":"Maristany","sequence":"additional","affiliation":[{"name":"Servei de Radiodiagn\u00f2stic, IDIMAS-CRC-Mar, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E","family":"Molins","sequence":"additional","affiliation":[{"name":"Servei d'Epidemiologia i Avaluaci\u00f3, Hospital del Mar, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Sala","sequence":"additional","affiliation":[{"name":"Servei d'Epidemiologia i Avaluaci\u00f3, Hospital del Mar, Barcelona, Spain"},{"name":"CIBER Epidemiolog\u00eda y Salud P\u00fablica (CIBERESP), Spain"},{"name":"Grup de Recerca en Epidemiologia i Avaluaci\u00f3, IMIM (Institut de Recerca Hospital del Mar), Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"X","family":"Castells","sequence":"additional","affiliation":[{"name":"Servei d'Epidemiologia i Avaluaci\u00f3, Hospital del Mar, Barcelona, Spain"},{"name":"CIBER Epidemiolog\u00eda y Salud P\u00fablica (CIBERESP), Spain"},{"name":"Grup de Recerca en Epidemiologia i Avaluaci\u00f3, IMIM (Institut de Recerca Hospital del Mar), Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2014,1,28]]},"reference":[{"key":"2024050213265369800_b1","doi-asserted-by":"crossref","first-page":"69","DOI":"10.3322\/caac.20107","article-title":"Global cancer statistics.","volume":"61","author":"Jemal","year":"2011","journal-title":"CA Cancer J Clin"},{"key":"2024050213265369800_b2","article-title":"GLOBOCAN 2008, cancer incidence and mortality worldwide.","author":"Ferlay"},{"key":"2024050213265369800_b3","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1258\/0969141053279130","article-title":"Comparing the performance of mammography screening in the USA and the UK.","volume":"12","author":"Smith-Bindman","year":"2005","journal-title":"J Med Screen"},{"key":"2024050213265369800_b4","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1258\/0969141042467430","article-title":"International Breast Cancer Screening Network. 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