{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T18:05:14Z","timestamp":1791223514465,"version":"4.1.0"},"reference-count":14,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2010,12,31]],"date-time":"2010-12-31T00:00:00Z","timestamp":1293753600000},"content-version":"vor","delay-in-days":213,"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":[[2010,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Objective<\/jats:italic>. To assess the value of transvaginal cervical length (CL) measurement and funneling of the internal cervical os to predict the onset of spontaneous labor within one week. <jats:italic>Design.<\/jats:italic> Observational prospective study. <jats:italic>Population.<\/jats:italic> A total of 234 women who delivered after spontaneous onset of labor. <jats:italic>Methods.<\/jats:italic> CL was measured and the presence of funneling of the internal cervical os was recorded by transvaginal ultrasound examination. <jats:italic>Main outcome measures.<\/jats:italic> CL changes from 37 to 40 weeks of gestation as a one\u2010point measurement, as well as the long\u2010term (16\u201321 weeks to term or 37\u201340 weeks) and short\u2010term (weekly from 37 to 40 weeks) differences in CL. <jats:italic>Results.<\/jats:italic> The one\u2010point measurement of CL, with an optimum cut\u2010off point of 25 mm [odds ratio (OR) 3.19; 95% confidence interval (CI) 2.01\u20135.05] and a decreased long\u2010term CL (cervical shortening of 55% as an optimum cut\u2010off point (OR 3.75; 95% CI 1.76\u20138.00) may predict the onset of spontaneous labor within one week. The likelihood of spontaneous labor within one week is high when funneling of the internal cervical os is present (OR 2.68; 95% CI 1.71\u20134.19). <jats:italic>Conclusions<\/jats:italic>. Transvaginal CL measurement and observation of funneling of the internal cervical os are useful predictors of the onset of spontaneous labor.<\/jats:p>","DOI":"10.3109\/00016341003611212","type":"journal-article","created":{"date-parts":[[2010,3,11]],"date-time":"2010-03-11T11:32:58Z","timestamp":1268307178000},"page":"757-761","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Time\u2010related changes of cervical length as a predictor of labor onset within one week using transvaginal ultrasonography"],"prefix":"10.1111","volume":"89","author":[{"given":"HIROSHI","family":"MIURA","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"MASAKI","family":"OGAWA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"HIDETO","family":"HIRANO","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"TOSHINOBU","family":"TANAKA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2010,12,31]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(94)90014-0"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2003.137"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2000.105399"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.7863\/jum.2004.23.3.375"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.1100"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0029-7844(96)00321-3"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0029-7844(01)01386-2"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.3109\/00016349709050065"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(00)70498-4"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1515\/JPM.2001.045"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.913"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1038\/sj.jp.7211819"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2004-837268"},{"key":"e_1_2_6_15_2","first-page":"571","article-title":"Early diagnosis of the cervical incompetency by the ultrasonography","volume":"41","author":"Hirano H","year":"1989","journal-title":"Nippon Sanka Fujinka Gakkai Zasshi"}],"container-title":["Acta Obstetricia et Gynecologica Scandinavica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.3109%2F00016341003611212","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.3109\/00016341003611212","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,15]],"date-time":"2023-10-15T17:47:49Z","timestamp":1697392069000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.3109\/00016341003611212"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,6]]},"references-count":14,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2010,6]]}},"alternative-id":["10.3109\/00016341003611212"],"URL":"https:\/\/doi.org\/10.3109\/00016341003611212","archive":["Portico"],"relation":{},"ISSN":["0001-6349","1600-0412"],"issn-type":[{"value":"0001-6349","type":"print"},{"value":"1600-0412","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,6]]},"assertion":[{"value":"2010-12-31","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}