{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,16]],"date-time":"2026-05-16T10:13:07Z","timestamp":1778926387133,"version":"3.51.4"},"reference-count":44,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T00:00:00Z","timestamp":1772496000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003196","name":"Ministry of Health","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003196","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100020581","name":"AIRC Foundation for Cancer Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100020581","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","thebreastonline.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["The Breast"],"published-print":{"date-parts":[[2026,6]]},"DOI":"10.1016\/j.breast.2026.104747","type":"journal-article","created":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T00:44:29Z","timestamp":1772671469000},"page":"104747","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"special_numbering":"C","title":["External validation of a data-driven algorithm to identify breast cancer recurrences from administrative healthcare data"],"prefix":"10.1016","volume":"87","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0673-3347","authenticated-orcid":false,"given":"Silvia","family":"Mancini","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabiola","family":"Giudici","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6771-8119","authenticated-orcid":false,"given":"Lauro","family":"Bucchi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Annibale","family":"Biggeri","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Orietta","family":"Giuliani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Flavia","family":"Baldacchini","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alessandra","family":"Ravaioli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Federica","family":"Zamagni","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Federica","family":"Toffolutti","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefano","family":"Guzzinati","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luigino","family":"Dal Maso","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabio","family":"Falcini","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rosa","family":"Vattiato","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.breast.2026.104747_bib1","doi-asserted-by":"crossref","first-page":"dju288","DOI":"10.1093\/jnci\/dju288","article-title":"Maastricht Delphi consensus on event definitions for classification of recurrence in breast cancer research","volume":"106","author":"Moossdorff","year":"2014","journal-title":"J Natl Cancer Inst"},{"key":"10.1016\/j.breast.2026.104747_bib2","doi-asserted-by":"crossref","first-page":"520","DOI":"10.1186\/s12885-019-5710-5","article-title":"Risk of loco-regional recurrence and distant metastases of patients with invasive breast cancer up to ten years after diagnosis: results from a registry-based study from Germany","volume":"19","author":"Holleczek","year":"2019","journal-title":"BMC Cancer"},{"key":"10.1016\/j.breast.2026.104747_bib3","doi-asserted-by":"crossref","DOI":"10.1016\/j.breast.2025.103883","article-title":"Incidence and temporal patterns of true recurrences and second primaries in women with breast cancer: a 10-year competing risk-adjusted analysis","volume":"80","author":"Mancini","year":"2025","journal-title":"Breast"},{"key":"10.1016\/j.breast.2026.104747_bib4","doi-asserted-by":"crossref","first-page":"281","DOI":"10.7150\/jca.8016","article-title":"Current approaches and challenges in early detection of breast cancer recurrence","volume":"5","author":"Schneble","year":"2014","journal-title":"J Cancer"},{"key":"10.1016\/j.breast.2026.104747_bib5","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/S1470-2045(23)00646-0","article-title":"Complete cancer prevalence in Europe in 2020 by disease duration and country (EUROCARE-6): a population-based study","volume":"25","author":"De Angelis","year":"2024","journal-title":"Lancet Oncol"},{"key":"10.1016\/j.breast.2026.104747_bib6","doi-asserted-by":"crossref","first-page":"5291","DOI":"10.1002\/cam4.1760","article-title":"Risk-based breast cancer follow-up stratified by age","volume":"7","author":"Witteveen","year":"2018","journal-title":"Cancer Med"},{"key":"10.1016\/j.breast.2026.104747_bib7","doi-asserted-by":"crossref","first-page":"891","DOI":"10.1007\/s11547-016-0676-8","article-title":"Recommendations for breast imaging follow-up of women with a previous history of breast cancer: position paper from the Italian group for mammography screening (GISMa) and the Italian college of breast radiologists (ICBR) by SIRM","volume":"121","author":"Bucchi","year":"2016","journal-title":"Radiol Med"},{"key":"10.1016\/j.breast.2026.104747_bib8","doi-asserted-by":"crossref","first-page":"579","DOI":"10.1007\/s10549-019-05182-3","article-title":"What does risk of future cancer mean to breast cancer patients?","volume":"175","author":"Kaiser","year":"2019","journal-title":"Breast Cancer Res Treat"},{"key":"10.1016\/j.breast.2026.104747_bib9","doi-asserted-by":"crossref","first-page":"djv134","DOI":"10.1093\/jnci\/djv134","article-title":"Challenges and opportunities in measuring cancer recurrence in the United States","volume":"107","author":"Warren","year":"2015","journal-title":"J Natl Cancer Inst"},{"key":"10.1016\/j.breast.2026.104747_bib10","doi-asserted-by":"crossref","first-page":"979","DOI":"10.1093\/jnci\/djaa050","article-title":"A systematic review of estimating breast cancer recurrence at the population level with administrative data","volume":"112","author":"Izci","year":"2020","journal-title":"J Natl Cancer Inst"},{"key":"10.1016\/j.breast.2026.104747_bib11","doi-asserted-by":"crossref","DOI":"10.1016\/j.canep.2019.101653","article-title":"Breast and colorectal cancer recurrence and progression captured by five U.S. population-based registries: findings from national program of cancer registries patient-centered outcome research","volume":"64","author":"Thompson","year":"2020","journal-title":"Cancer Epidemiol"},{"key":"10.1016\/j.breast.2026.104747_bib12","article-title":"Collecting long-term outcomes in population-based cancer registry data: the case of breast cancer recurrence","volume":"10","author":"Morgan","year":"2024","journal-title":"JCO Glob Oncol"},{"key":"10.1016\/j.breast.2026.104747_bib13","doi-asserted-by":"crossref","first-page":"961","DOI":"10.1007\/s13244-018-0667-5","article-title":"Breast imaging surveillance after curative treatment for primary non-metastasised breast cancer in non-high-risk women: a systematic review","volume":"9","author":"Swinnen","year":"2018","journal-title":"Insights Imaging"},{"key":"10.1016\/j.breast.2026.104747_bib14","doi-asserted-by":"crossref","first-page":"1332","DOI":"10.1158\/1055-9965.EPI-17-1129","article-title":"Can we use survival data from cancer registries to learn about disease recurrence? The case of breast cancer","volume":"27","author":"Mariotto","year":"2018","journal-title":"Cancer Epidemiol Biomarkers Prev"},{"key":"10.1016\/j.breast.2026.104747_bib15","doi-asserted-by":"crossref","first-page":"528","DOI":"10.1093\/jamiaopen\/ooz040","article-title":"Using natural language processing to construct a metastatic breast cancer cohort from linked cancer registry and electronic medical records data","volume":"2","author":"Ling","year":"2019","journal-title":"JAMIA Open"},{"key":"10.1016\/j.breast.2026.104747_bib16","doi-asserted-by":"crossref","first-page":"932","DOI":"10.1002\/ijc.34568","article-title":"Predicting second breast cancer among women with primary breast cancer using machine learning algorithms: a population-based observational study","volume":"153","author":"Syleouni","year":"2023","journal-title":"Int J Cancer"},{"key":"10.1016\/j.breast.2026.104747_bib17","article-title":"The innovative model based on artificial intelligence algorithms to predict recurrence risk of patients with postoperative breast cancer","volume":"13","author":"Zeng","year":"2023","journal-title":"Front Oncol"},{"key":"10.1016\/j.breast.2026.104747_bib18","first-page":"djv336","article-title":"Enhancing breast cancer recurrence algorithms through selective use of medical record data","volume":"108","author":"Kroenke","year":"2015","journal-title":"J Natl Cancer Inst"},{"key":"10.1016\/j.breast.2026.104747_bib19","doi-asserted-by":"crossref","first-page":"273","DOI":"10.1093\/jnci\/djx200","article-title":"Development, validation, and dissemination of a breast cancer recurrence detection and timing informatics algorithm","volume":"110","author":"Ritzwoller","year":"2018","journal-title":"J Natl Cancer Inst"},{"key":"10.1016\/j.breast.2026.104747_bib20","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1186\/s12885-019-5432-8","article-title":"Development and validation of case-finding algorithms for recurrence of breast cancer using routinely collected administrative data","volume":"19","author":"Xu","year":"2019","journal-title":"BMC Cancer"},{"key":"10.1016\/j.breast.2026.104747_bib21","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1186\/s12885-022-09333-6","article-title":"New method for determining breast cancer recurrence-free survival using routinely collected real-world health data","volume":"22","author":"Jung","year":"2022","journal-title":"BMC Cancer"},{"key":"10.1016\/j.breast.2026.104747_bib22","doi-asserted-by":"crossref","first-page":"509","DOI":"10.1007\/s10549-022-06812-z","article-title":"Estimating the incidence of breast cancer recurrence using administrative data","volume":"198","author":"Habbous","year":"2023","journal-title":"Breast Cancer Res Treat"},{"key":"10.1016\/j.breast.2026.104747_bib23","doi-asserted-by":"crossref","DOI":"10.1016\/j.canep.2025.102780","article-title":"Notification of locoregional breast cancer recurrence based on pathology reports: a nationwide validation study with the Netherlands cancer registry","volume":"96","author":"van Maaren","year":"2025","journal-title":"Cancer Epidemiol"},{"key":"10.1016\/j.breast.2026.104747_bib24","doi-asserted-by":"crossref","DOI":"10.1016\/j.breast.2025.104487","article-title":"A population-based estimation of breast cancer recurrence in northeast Italy with administrative healthcare databases","volume":"82","author":"Giudici","year":"2025","journal-title":"Breast"},{"key":"10.1016\/j.breast.2026.104747_bib25","volume":"1","year":"2016"},{"key":"10.1016\/j.breast.2026.104747_bib26","unstructured":"Centers for Disease Control and Prevention. International classification of diseases, ninth revision, clinical modification (ICD-9-CM) Available at:. https:\/\/archive.cdc.gov\/#\/details?url=https:\/\/www.cdc.gov\/nchs\/icd\/icd9cm.htm. [Accessed 11 March 2026]."},{"key":"10.1016\/j.breast.2026.104747_bib27","doi-asserted-by":"crossref","first-page":"1477","DOI":"10.1007\/s10198-021-01327-8","article-title":"A direct method for the identification of patterns of care using administrative databases: the case of breast cancer","volume":"22","author":"Busco","year":"2021","journal-title":"Eur J Health Econ"},{"key":"10.1016\/j.breast.2026.104747_bib28","unstructured":"ENCR Recommendations 2025. Recording recurrence, progression and transformation episodes Available at:. https:\/\/www.encr.eu\/sites\/default\/files\/Recommendations\/ENCR_Recording-Recurrence-Progression-Transformation_EN_Feb2025.pdf. [Accessed 11 March 2026]."},{"key":"10.1016\/j.breast.2026.104747_bib29","first-page":"363","article-title":"Applying competing risks analysis to recurrences of primary breast cancer","volume":"47","author":"Mancini","year":"2023","journal-title":"Epidemiol Prev"},{"key":"10.1016\/j.breast.2026.104747_bib30","series-title":"International classification of disease for oncology (ICD-O), 1st revision","year":"2013"},{"key":"10.1016\/j.breast.2026.104747_bib31","series-title":"International Association of Cancer Registries. European Network of Cancer Registries. International rules for multiple primary cancers, ICD-O, third edition","year":"2004"},{"issue":"Suppl","key":"10.1016\/j.breast.2026.104747_bib32","first-page":"712","article-title":"Pathologic findings from the national surgical adjuvant project for breast cancers (protocol no. 4). X. Discriminants for tenth year treatment failure","volume":"53","author":"Fisher","year":"1984","journal-title":"Cancer"},{"key":"10.1016\/j.breast.2026.104747_bib33","doi-asserted-by":"crossref","first-page":"R372","DOI":"10.1186\/bcr804","article-title":"Hypothesis: induced angiogenesis after surgery in premenopausal node-positive breast cancer patients is a major underlying reason why adjuvant chemotherapy works particularly well for those patients","volume":"6","author":"Retsky","year":"2004","journal-title":"Breast Cancer Res"},{"key":"10.1016\/j.breast.2026.104747_bib34","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1007\/s10549-004-1722-0","article-title":"Hazard rates of recurrence following diagnosis of primary breast cancer","volume":"89","author":"Jatoi","year":"2005","journal-title":"Breast Cancer Res Treat"},{"key":"10.1016\/j.breast.2026.104747_bib35","doi-asserted-by":"crossref","first-page":"527","DOI":"10.1007\/s10549-008-0022-5","article-title":"Time-varying pattern of recurrence risk for Chinese breast cancer patients","volume":"114","author":"Yin","year":"2009","journal-title":"Breast Cancer Res Treat"},{"key":"10.1016\/j.breast.2026.104747_bib36","doi-asserted-by":"crossref","first-page":"656","DOI":"10.1186\/1471-2407-10-656","article-title":"Recurrence and mortality according to estrogen receptor status for breast cancer patients undergoing conservative surgery. Ipsilateral breast tumour recurrence dynamics provides clues for tumour biology within the residual breast","volume":"10","author":"Demicheli","year":"2010","journal-title":"BMC Cancer"},{"key":"10.1016\/j.breast.2026.104747_bib37","doi-asserted-by":"crossref","first-page":"709","DOI":"10.1007\/s10549-017-4340-3","article-title":"Patterns and predictors of first and subsequent recurrence in women with early breast cancer","volume":"165","author":"Geurts","year":"2017","journal-title":"Breast Cancer Res Treat"},{"key":"10.1016\/j.breast.2026.104747_bib38","doi-asserted-by":"crossref","first-page":"1050","DOI":"10.3332\/ecancer.2020.1050","article-title":"Breast cancer and the black swan","volume":"14","author":"Retsky","year":"2020","journal-title":"ecancermedicalscience"},{"key":"10.1016\/j.breast.2026.104747_bib39","doi-asserted-by":"crossref","first-page":"5338","DOI":"10.3390\/curroncol29080424","article-title":"Identifying breast cancer recurrence in administrative data: algorithm development and validation","volume":"29","author":"Holloway","year":"2022","journal-title":"Curr Oncol"},{"key":"10.1016\/j.breast.2026.104747_bib40","doi-asserted-by":"crossref","first-page":"822","DOI":"10.1177\/0272989X18790963","article-title":"Comparison of logistic regression and Bayesian networks for risk prediction of breast cancer recurrence","volume":"38","author":"Witteveen","year":"2018","journal-title":"Med Decis Mak"},{"key":"10.1016\/j.breast.2026.104747_bib41","doi-asserted-by":"crossref","DOI":"10.1016\/j.breast.2024.103829","article-title":"The INFLUENCE 3.0 model: updated predictions of locoregional recurrence and contralateral breast cancer, now also suitable for patients treated with neoadjuvant systemic therapy","volume":"79","author":"Van Maaren","year":"2025","journal-title":"Breast"},{"key":"10.1016\/j.breast.2026.104747_bib42","doi-asserted-by":"crossref","first-page":"675","DOI":"10.1158\/1055-9965.EPI-09-1051","article-title":"Accuracy of perceived risk of recurrence among patients with early-stage breast cancer","volume":"19","author":"Liu","year":"2010","journal-title":"Cancer Epidemiol Biomarkers Prev"},{"key":"10.1016\/j.breast.2026.104747_bib43","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1007\/s40487-024-00324-0","article-title":"Real-world observational study of incidence and outcomes in an HR+\/HER2- early breast cancer population with high-risk of recurrence in Finland","volume":"13","author":"Singh","year":"2025","journal-title":"Oncol Ther"},{"key":"10.1016\/j.breast.2026.104747_bib44","unstructured":"Joint action prevent non-communicable disease Available at:. https:\/\/preventncd.eu\/. [Accessed 11 March 2026]."}],"container-title":["The Breast"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0960977626000573?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0960977626000573?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,5,16]],"date-time":"2026-05-16T09:59:01Z","timestamp":1778925541000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0960977626000573"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6]]},"references-count":44,"alternative-id":["S0960977626000573"],"URL":"https:\/\/doi.org\/10.1016\/j.breast.2026.104747","relation":{},"ISSN":["0960-9776"],"issn-type":[{"value":"0960-9776","type":"print"}],"subject":[],"published":{"date-parts":[[2026,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"External validation of a data-driven algorithm to identify breast cancer recurrences from administrative healthcare data","name":"articletitle","label":"Article Title"},{"value":"The Breast","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.breast.2026.104747","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 The Authors. Published by Elsevier Ltd.","name":"copyright","label":"Copyright"}],"article-number":"104747"}}