{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T05:05:01Z","timestamp":1768194301619,"version":"3.49.0"},"reference-count":13,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2010,12,31]],"date-time":"2010-12-31T00:00:00Z","timestamp":1293753600000},"content-version":"vor","delay-in-days":1429,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2007,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Background<\/jats:italic>. The purpose of the present study was to validate the registration of obstetric sphincter tears in 2 registers, the Medical Birth Registry of Norway [MBRN] and Patient Administration System [PAS]. <jats:italic>Methods<\/jats:italic>. A retrospective cohort study of all obstetric sphincter tears that occurred in our department in 1990\u20131992 and 2000\u20132002 was performed. The case records of all patients registered either in MBRN, PAS or the birth logs were compared with the information in the medical records, which constituted the \u2018golden standard\u2019. <jats:italic>Results<\/jats:italic>. The incidence of obstetric sphincter tears in 1990\u20131992 was 5.8% (774\/13381), 5.6% (745\/13381) had a perineal tear of third degree and 0.2% (29\/13381) of fourth degree. In 2000\u20132002, the total incidence was 6.6% (813\/12380), 5.9% (731\/12380) was a third degree perineal tear and 0.7% (82\/12380) fourth degree, respectively. The sensitivity and specificity of the MBRN database to detect obstetric sphincter tears was 85.3 and 99.5% in 1990\u20131992, and 91.8 and 99.7% in 2000\u20132002, respectively. The positive and negative predictive values of a MBRN\u2010registered diagnosis of obstetric sphincter tears in 1990\u20131992 were 91.4 and 99.1%, while the corresponding percentages in 2000\u20132002 were 95.4 and 99.4%, respectively. The sensitivity and specificity of the PAS database was correspondingly 52.1 and 99.0% in 1990\u20131992, and 84.6 and 98.5% in 2000\u20132002. The positive and negative predictive values of a PAS\u2010diagnosis of obstetric sphincter tears were 75.8 and 97.1% in 1990\u20131992. In 2000\u20132002, they were 92.7 and 98.9%, respectively. <jats:italic>Conclusion<\/jats:italic>. The validity of a diagnosis of obstetric sphincter tears, based on the MBRN, is sufficiently high to justify future large\u2010scale epidemiologic studies based on this database, while the validity of a PAS diagnosis is lower, but improves.<\/jats:p>","DOI":"10.1080\/00016340601111364","type":"journal-article","created":{"date-parts":[[2007,3,29]],"date-time":"2007-03-29T22:25:26Z","timestamp":1175207126000},"page":"205-209","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":49,"title":["A validation of the diagnosis of obstetric sphincter tears in two Norwegian databases, the Medical Birth Registry and the Patient Administration System"],"prefix":"10.1111","volume":"86","author":[{"given":"ELHAM","family":"BAGHESTAN","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Per E.","family":"B\u00f8rdahl","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"SVEIN A.","family":"RASMUSSEN","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ANNE K.","family":"SANDE","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"INGVILL","family":"LYSLO","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ISABEL","family":"SOLVANG","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2010,12,31]]},"reference":[{"key":"e_1_2_7_2_2","first-page":"974","article-title":"Frequency of anal sphincter rupture at delivery in Sweden and Finland \u2013 result of difference in manual help to the baby's head","volume":"77","author":"Pirhonen JP","year":"1998","journal-title":"Acta Obstet Gynecol Scand"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.0001-6349.2004.00647.x"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/00006250-199907000-00005"},{"key":"e_1_2_7_5_2","unstructured":"Complications during delivery in 1999 and 2002.http:\/\/www.fhi.no\/dav\/8783128DC5.pdf http:\/\/www.fhi.no\/dav\/7578B007B5."},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0412.2003.00260.x"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.308.6933.887"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1996.tb09557.x"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0412.1998.770707.x"},{"key":"e_1_2_7_10_2","unstructured":"Report from the Norwegian Board of Health\u20132004.http:\/\/www.helsetilsynet.no\/templates\/ArticleWithLinks_6374.aspx."},{"key":"e_1_2_7_11_2","unstructured":"Sfinkterskader ved f\u00f8dsel b\u00f8r reduseres i Norge [Obstetric sphincter tears should be reduced in Norway].http:\/\/www.shdir.no\/vp\/multimedia\/archive\/00008\/Nasjonal_handlingspla_8094a.pdf."},{"key":"e_1_2_7_12_2","first-page":"535","article-title":"The Medical Birth Registry of Norway. Epidemiological research and surveillance through 30 years","volume":"79","author":"Irgens LM","year":"2000","journal-title":"Acta Obstet Gynecol Scand"},{"key":"e_1_2_7_13_2","unstructured":"World Health Organization (WHO).Managing complications in pregnancy and childbirth. A guide for midwives and doctors.http:\/\/www.who.int\/reproductive\u2010health\/impac\/Procedures\/Repair_vaginal_P83_P90.html."},{"key":"e_1_2_7_14_2","doi-asserted-by":"publisher","DOI":"10.1002\/sim.4780120902"}],"container-title":["Acta Obstetricia et Gynecologica Scandinavica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1080%2F00016340601111364","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1080\/00016340601111364","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,15]],"date-time":"2023-10-15T21:22:21Z","timestamp":1697404941000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1080\/00016340601111364"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,2]]},"references-count":13,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2007,2]]}},"alternative-id":["10.1080\/00016340601111364"],"URL":"https:\/\/doi.org\/10.1080\/00016340601111364","archive":["Portico"],"relation":{},"ISSN":["0001-6349","1600-0412"],"issn-type":[{"value":"0001-6349","type":"print"},{"value":"1600-0412","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,2]]},"assertion":[{"value":"2010-12-31","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}