{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T18:55:56Z","timestamp":1792695356004,"version":"4.5.0"},"reference-count":49,"publisher":"Informa UK Limited","issue":"8","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Health Care for Women International"],"published-print":{"date-parts":[[2009,8,3]]},"DOI":"10.1080\/07399330802596473","type":"journal-article","created":{"date-parts":[[2009,7,3]],"date-time":"2009-07-03T13:02:35Z","timestamp":1246626155000},"page":"670-689","source":"Crossref","is-referenced-by-count":20,"title":["Effect of Older Maternal Age on the Risk of Spontaneous Preterm Labor: A Population-Based Study"],"prefix":"10.1080","volume":"30","author":[{"given":"Safina Hassan","family":"Mcintyre","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine V.","family":"Newburn-Cook","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beverley","family":"O'Brien","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nestor N.","family":"Demianczuk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"301","reference":[{"key":"CIT0001","doi-asserted-by":"publisher","DOI":"10.1001\/jama.270.21.2574"},{"key":"CIT0002","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000158124.96300.c7"},{"key":"CIT0003","first-page":"2S97","volume":"53","author":"Astolfi P.","year":"2005","journal-title":"Revue d'Epidemiologie et de Sant\u00e9 Publique"},{"key":"CIT0004","first-page":"27","volume-title":"Reproductive and perinatal epidemiology","author":"Berendes H. W.","year":"1991"},{"key":"CIT0005","first-page":"239","volume":"52","author":"Berkowitz G. S.","year":"1985","journal-title":"Mount Sinai Journal of Medicine"},{"key":"CIT0006","doi-asserted-by":"publisher","DOI":"10.1097\/00001648-199805000-00011"},{"key":"CIT0007","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1093\/oxfordjournals.epirev.a036128","volume":"15","author":"Berkowitz G. S.","year":"1993","journal-title":"Epidemiologic Reviews"},{"key":"CIT0008","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199003083221004"},{"key":"CIT0009","doi-asserted-by":"publisher","DOI":"10.1038\/sj.jp.7211064"},{"key":"CIT0010","doi-asserted-by":"publisher","DOI":"10.1093\/humrep\/10.1.155"},{"key":"CIT0011","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1016\/S0002-9378(12)90878-9","volume":"168","author":"Cnattingius S.","year":"1993","journal-title":"American Journal of Obstetrics and Gynecology"},{"key":"CIT0012","doi-asserted-by":"publisher","DOI":"10.1053\/sper.2002.29841"},{"key":"CIT0014","doi-asserted-by":"crossref","first-page":"1585","DOI":"10.1136\/bmj.311.7020.1585","volume":"311","author":"Gosden R.","year":"1995","journal-title":"British Medical Journal"},{"key":"CIT0015","first-page":"187","volume":"34","author":"Hammarberg K.","year":"2005","journal-title":"Australian Family Physician"},{"key":"CIT0016","doi-asserted-by":"publisher","DOI":"10.1097\/00006254-198611000-00024"},{"key":"CIT0017","doi-asserted-by":"publisher","DOI":"10.1016\/0895-4356(95)00566-8"},{"key":"CIT0018","volume-title":"Canadian perinatal health report 2003","year":"2003"},{"key":"CIT0019","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-3016.2005.00644.x"},{"key":"CIT0020","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMp048087"},{"key":"CIT0021","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2006.10.862"},{"key":"CIT0022","doi-asserted-by":"publisher","DOI":"10.1002\/0471722146"},{"key":"CIT0023","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000140682.63746.be"},{"key":"CIT0024","doi-asserted-by":"publisher","DOI":"10.1093\/humrep\/15.11.2433"},{"key":"CIT0025","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000163256.83313.36"},{"key":"CIT0026","doi-asserted-by":"publisher","DOI":"10.1080\/j.1600-0412.2000.079008644.x"},{"key":"CIT0027","first-page":"663","volume":"65","author":"Kramer M. S.","year":"1987","journal-title":"Bulletin of the World Health Organization"},{"key":"CIT0028","doi-asserted-by":"crossref","first-page":"574","DOI":"10.1093\/oxfordjournals.aje.a116535","volume":"136","author":"Kramer M. S.","year":"1992","journal-title":"American Journal of Epidemiology"},{"key":"CIT0029","doi-asserted-by":"publisher","DOI":"10.1097\/00001648-199607000-00006"},{"key":"CIT0030","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.38751.524132.2F"},{"key":"CIT0031","volume-title":"Australia's mothers and babies 2005","author":"Laws P. J.","year":"2007"},{"key":"CIT0033","first-page":"1","volume":"56","author":"Martin J. A.","year":"2007","journal-title":"National Vital Statistics Reports"},{"key":"CIT0034","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(95)90288-0"},{"key":"CIT0035","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(96)70225-9"},{"key":"CIT0036","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1046\/j.1471-0528.2003.00021.x","volume":"110","author":"Moutquin J.","year":"2003","journal-title":"BJOG: An International Journal of Obstetrics and Gynaecology"},{"key":"CIT0037","doi-asserted-by":"publisher","DOI":"10.1080\/07399330500230912"},{"key":"CIT0038","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-8529(03)00046-X"},{"key":"CIT0039","doi-asserted-by":"publisher","DOI":"10.1016\/S0029-7844(03)00739-7"},{"key":"CIT0040","doi-asserted-by":"crossref","first-page":"467","DOI":"10.1016\/S0002-9378(11)80001-3","volume":"164","author":"Savitz D. A.","year":"1991","journal-title":"American Journal of Obstetrics and Gynecology"},{"key":"CIT0041","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-3016.2005.00637.x"},{"key":"CIT0042","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyl154"},{"key":"CIT0043","series-title":"Catalogue number 84F0210XIE","volume-title":"Births 2005","year":"2007"},{"key":"CIT0044","volume-title":"CANSIM Table Number 1024508\u2014Live births, by age and parity of mother, Canada, annual","year":"2008"},{"key":"CIT0045","doi-asserted-by":"publisher","DOI":"10.1542\/peds.109.3.399"},{"key":"CIT0046","doi-asserted-by":"publisher","DOI":"10.1007\/s10995-006-0156-1"},{"key":"CIT0047","volume-title":"Trends in Europe and North America: The statistical yearbook of the economic commission for Europe 2005","year":"2005"},{"key":"CIT0048","first-page":"1","volume":"47","author":"Ventura S. J.","year":"1999","journal-title":"National Vital Statistics Reports"},{"key":"CIT0050","doi-asserted-by":"publisher","DOI":"10.1016\/S0020-7292(99)00181-2"},{"key":"CIT0051","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1016\/0002-9378(90)90853-Y","volume":"162","author":"Wen S. W.","year":"1990","journal-title":"American Journal of Obstetrics and Gynecology"},{"key":"CIT0052","volume-title":"Direct and indirect determinants of low birth weight in a large Canadian urban health region","author":"White D. E.","year":"2004"}],"container-title":["Health Care for Women International"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.tandfonline.com\/doi\/pdf\/10.1080\/07399330802596473","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,21]],"date-time":"2019-05-21T06:35:30Z","timestamp":1558420530000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.tandfonline.com\/doi\/abs\/10.1080\/07399330802596473"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,8,3]]},"references-count":49,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2009,8,3]]}},"alternative-id":["10.1080\/07399330802596473"],"URL":"https:\/\/doi.org\/10.1080\/07399330802596473","relation":{},"ISSN":["0739-9332","1096-4665"],"issn-type":[{"value":"0739-9332","type":"print"},{"value":"1096-4665","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,8,3]]}}}