{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,29]],"date-time":"2025-10-29T13:12:11Z","timestamp":1761743531912},"reference-count":31,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2011,9,8]],"date-time":"2011-09-08T00:00:00Z","timestamp":1315440000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Paediatrica"],"published-print":{"date-parts":[[2012,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Aim:\u2002<\/jats:bold> This study aimed to evaluate changes over time in the characteristics of permanent hearing impairment (HI) in extremely low\u2010birthweight (ELBW \u2264800\u2003g) children.<\/jats:p><jats:p><jats:bold>Methods:\u2002<\/jats:bold> Data from sequential visits up to 5\u2003years of age assessing hearing and other neurodevelopmental outcomes were extracted from a cohort of ELBW subjects born between 1983 and 2006 at a single Canadian site. Trends in HI incidence, severity and association with other impairments were analysed in three 8\u2010year epochs.<\/jats:p><jats:p><jats:bold>Results:\u2002<\/jats:bold> Fifty of 586 ELBW children had a HI. HI rates increased from 5% in epoch 1 to 7% in epoch 2\u201313% in epoch 3 (p\u2003=\u20030.01). Mild HI decreased from 78% in epoch 1 to 35% in epoch 3 (p\u2003=\u20030.03). Median age at diagnosis decreased from 13 to 8\u2003months. Comorbidities were more common in HI children than non\u2010HI children: cerebral palsy (40% vs 14%, p\u2003&lt;\u20030.0001)), cognitive (38% vs 12%, p\u2003&lt;\u20030.0001) and visual impairments (16% vs 6%, p\u2003=\u20030.009).<\/jats:p><jats:p><jats:bold>Conclusion:\u2002<\/jats:bold> The incidence and severity of hearing impairment in a cohort of extremely low\u2010birthweight children increased significantly from 5% to 13% (p\u2003=\u20030.01) over a 24\u2010year period. Comorbidities were common. Potentially modifiable causes are explored.<\/jats:p>","DOI":"10.1111\/j.1651-2227.2011.02437.x","type":"journal-article","created":{"date-parts":[[2011,8,8]],"date-time":"2011-08-08T17:25:03Z","timestamp":1312824303000},"update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Incidence and pattern of hearing impairment in children with \u2264\u2003800 g birthweight in British Columbia, Canada"],"prefix":"10.1111","volume":"101","author":[{"given":"Anne R","family":"Synnes","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shelagh","family":"Anson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julia","family":"Baum","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Laurie","family":"Usher","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,9,8]]},"reference":[{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/adc.2007.124214"},{"key":"e_1_2_9_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1440-1754.2007.01275.x"},{"key":"e_1_2_9_4_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra050700"},{"key":"e_1_2_9_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpeds.2010.06.016"},{"key":"e_1_2_9_6_2","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2008-2531"},{"key":"e_1_2_9_7_2","doi-asserted-by":"publisher","DOI":"10.1136\/adc.54.6.421"},{"key":"e_1_2_9_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3476(89)80151-9"},{"key":"e_1_2_9_9_2","doi-asserted-by":"publisher","DOI":"10.1542\/peds.104.4.900"},{"key":"e_1_2_9_10_2","doi-asserted-by":"publisher","DOI":"10.1044\/jshd.4203.328"},{"key":"e_1_2_9_11_2","doi-asserted-by":"publisher","DOI":"10.1542\/peds.60.6.831"},{"key":"e_1_2_9_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.heares.2005.12.003"},{"key":"e_1_2_9_13_2","first-page":"229","article-title":"Auditory brainstem response assessment of infants and children","volume":"10","author":"Stapells DR","year":"1989","journal-title":"Semin Hear"},{"key":"e_1_2_9_14_2","first-page":"71","volume-title":"Children with Hearing loss: Contemporary Trends","author":"Diefendorf AQ","year":"1988"},{"key":"e_1_2_9_15_2","doi-asserted-by":"crossref","unstructured":"British Columbia Provincial Intrauterine Growth Charts 1993 based on Kitchen WH et\u00a0al. 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