{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T14:59:45Z","timestamp":1787237985028,"version":"build-2736575974"},"reference-count":32,"publisher":"BMJ","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arch Dis Child Fetal Neonatal Ed"],"published-print":{"date-parts":[[2003,1]]},"abstract":"<jats:p>\n                    <jats:bold>Objective:<\/jats:bold>\n                    To compare the survival and short term morbidity of all New Zealand very low birthweight (VLBW) infants born in two epochs, 1986 and 1998\u20131999.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Setting:<\/jats:bold>\n                    All level III and level II neonatal intensive care units (NICUs) in New Zealand.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Methods:<\/jats:bold>\n                    In 1986, data were prospectively collected for a study of retinopathy of prematurity (ROP). In 1998\u20131999, prospective data were collected by the Australian and New Zealand Neonatal Network (ANZNN). Both cohorts included all VLBW infants born during the calendar year and admitted to a NICU. Data were collected from birth until discharge home or death.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Results:<\/jats:bold>\n                    More VLBW infants were admitted for care in 1998\u20131999 (n = 1084, 0.96% of livebirths) than in 1986 (n = 413, 0.78% of livebirths; p &lt; 0.001), including a higher proportion of VLBW infants of &lt; 1000 g birth weight (38%\n                    <jats:italic>v<\/jats:italic>\n                    32% respectively; p &lt; 0.05). Survival to discharge home increased from 81.8% in 1986 to 90.3% in 1998\u20131999 (p &lt; 0.001). The 1998\u20131999 cohort had a higher proportion of infants born in a hospital with a level III NICU (87%\n                    <jats:italic>v<\/jats:italic>\n                    72% in 1986; p &lt; 0.001) and receiving antenatal corticosteroids (80%\n                    <jats:italic>v<\/jats:italic>\n                    58% in 1986; p &lt; 0.001). In 1998\u20131999, the incidence of several morbidities had decreased compared with 1986, including oxygen dependency at 28 days (29%\n                    <jats:italic>v<\/jats:italic>\n                    39% respectively; p = 0.001) and at 36 weeks postmenstrual age (16%\n                    <jats:italic>v<\/jats:italic>\n                    23%; p = 0.002), grade 1 intraventricular haemorrhage (IVH) (8%\n                    <jats:italic>v<\/jats:italic>\n                    24%; p &lt; 0.001), grade 2\/3 IVH (5%\n                    <jats:italic>v<\/jats:italic>\n                    11%; p &lt; 0.001), and stage 3\/4 ROP for infants &lt; 1000 g (6%\n                    <jats:italic>v<\/jats:italic>\n                    13%; p &lt; 0.001).\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Conclusions:<\/jats:bold>\n                    The outlook for VLBW infants in New Zealand has improved since 1986.\n                  <\/jats:p>","DOI":"10.1136\/fn.88.1.f23","type":"journal-article","created":{"date-parts":[[2002,12,20]],"date-time":"2002-12-20T17:26:00Z","timestamp":1040405160000},"page":"F23-F28","source":"Crossref","is-referenced-by-count":71,"title":["Improved outcomes for very low birthweight infants: evidence from New Zealand national population based data"],"prefix":"10.1136","volume":"88","author":[{"given":"B A","family":"Darlow","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A E","family":"Cust","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D A","family":"Donoghue","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2003,1,1]]},"reference":[{"key":"2025090502112867000_88.1.F23.1","doi-asserted-by":"publisher","DOI":"10.1053\/siny.1999.0001"},{"key":"2025090502112867000_88.1.F23.2","unstructured":"Statistics New Zealand. Te Tari Tatau. Demographic trends 1995. http:\/\/www.stats.govt.nz\/; 1996."},{"key":"2025090502112867000_88.1.F23.3","doi-asserted-by":"publisher","DOI":"10.1136\/adc.63.9.1083"},{"key":"2025090502112867000_88.1.F23.4","doi-asserted-by":"crossref","first-page":"301","DOI":"10.1111\/j.1440-1754.1992.tb02672.x","volume":"28","year":"1992","journal-title":"J Paediatr Child Health"},{"key":"2025090502112867000_88.1.F23.5","doi-asserted-by":"publisher","DOI":"10.1136\/bjo.81.11.935"},{"key":"2025090502112867000_88.1.F23.6","doi-asserted-by":"publisher","DOI":"10.1111\/j.1440-1754.1997.tb00990.x"},{"key":"2025090502112867000_88.1.F23.7","first-page":"264","volume":"111","year":"1998","journal-title":"N Z Med J"},{"key":"2025090502112867000_88.1.F23.8","doi-asserted-by":"publisher","DOI":"10.1136\/fn.79.1.F12"},{"key":"2025090502112867000_88.1.F23.9","doi-asserted-by":"crossref","unstructured":"Cust AE, Darlow BA, Donoghue DA. 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Melbourne: Perinatal Society of Australia and New Zealand, 1999:148."},{"key":"2025090502112867000_88.1.F23.32","doi-asserted-by":"publisher","DOI":"10.1097\/00055735-199906000-00001"}],"container-title":["Archives of Disease in Childhood - Fetal and Neonatal Edition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/fn.88.1.F23","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,9,5]],"date-time":"2025-09-05T09:14:01Z","timestamp":1757063641000},"score":1,"resource":{"primary":{"URL":"https:\/\/fn.bmj.com\/lookup\/doi\/10.1136\/fn.88.1.F23"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2003,1]]},"references-count":32,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2003,1,1]]},"published-print":{"date-parts":[[2003,1]]}},"alternative-id":["10.1136\/fn.88.1.F23"],"URL":"https:\/\/doi.org\/10.1136\/fn.88.1.f23","relation":{},"ISSN":["1359-2998","1468-2052"],"issn-type":[{"value":"1359-2998","type":"print"},{"value":"1468-2052","type":"electronic"}],"subject":[],"published":{"date-parts":[[2003,1]]}}}