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Total readmission rates decreased from 49 to 14% at one to five years, and readmissions for respiratory causes fell from 31 to 3%. Bronchopulmonary dysplasia (<jats:styled-content style=\"fixed-case\">BPD<\/jats:styled-content>) or gestational age was not associated with readmissions for respiratory causes in multiple logistic regression models. However, both BPD and gestational age \u226425\u00a0weeks was associated with wheezing during the first year and the use of asthma medication during the first two years. <jats:styled-content style=\"fixed-case\">BPD<\/jats:styled-content> was associated with asthma medication between three and five years but not significantly at five years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Respiratory morbidity decreased during the first five years of life but was still more common than expected. It was unrelated to <jats:styled-content style=\"fixed-case\">BPD<\/jats:styled-content> and gestational age at five years of\u00a0age.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apa.13165","type":"journal-article","created":{"date-parts":[[2015,8,25]],"date-time":"2015-08-25T08:32:26Z","timestamp":1440491546000},"page":"1189-1198","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Respiratory illness contributed significantly to morbidity in children born extremely premature or with extremely low birthweights in 1999\u20132000"],"prefix":"10.1111","volume":"104","author":[{"given":"Kaia","family":"Skromme","sequence":"first","affiliation":[{"name":"Department of Clinical Science Section\u00a0for Pediatrics University of Bergen Bergen Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katrine Tyborg","family":"Leversen","sequence":"additional","affiliation":[{"name":"Department of Pediatrics 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