{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,3]],"date-time":"2025-11-03T03:59:10Z","timestamp":1762142350457,"version":"3.37.3"},"reference-count":17,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2017,6,16]],"date-time":"2017-06-16T00:00:00Z","timestamp":1497571200000},"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":[[2017,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>This Swedish study compared the discharge diagnosis codes used for children up to the age of five hospitalised for acute lower respiratory tract infections before and after the introduction of the pneumococcal conjugate vaccine in 2007.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The International Classification of Diseases\u201310th revision codes were used. We compared the discharge diagnosis codes at the Astrid Lindgren Children's Hospital from 1 July 2005 to 30 June 2007 (n=1,127) and 1 July 2011 to 30 June 2013 (n=1,240) in relation to the diagnostic methods used.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There was a 54% reduction in the rate of all\u2010cause pneumonia from the first to the second period in children aged 0\u20131 years, but some of this could have been due to the improved diagnosis of viral infections and us changing the code for respiratory syncytial virus infection from pneumonia to bronchiolitis. The overall rate of acute lower respiratory tract infections was unchanged.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>We could not determine how much of the reduction in bacterial pneumonia in children under one was because of the introduction of the pneumococcal conjugate vaccine, based solely on discharge codes. Longitudinal register studies should take changes in diagnosis codes into account.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apa.13923","type":"journal-article","created":{"date-parts":[[2017,5,16]],"date-time":"2017-05-16T16:38:23Z","timestamp":1494952703000},"page":"1825-1829","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Changing diagnosis coding routines may confound the results of longitudinal childhood pneumonia studies"],"prefix":"10.1111","volume":"106","author":[{"given":"Margareta","family":"Eriksson","sequence":"first","affiliation":[{"name":"Astrid Lindgren Children's Hospital Karolinska University Hospital Stockholm Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna","family":"Nilsson","sequence":"additional","affiliation":[{"name":"Astrid Lindgren Children's Hospital Karolinska University Hospital Stockholm Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0105-1865","authenticated-orcid":false,"given":"Rutger","family":"Bennet","sequence":"additional","affiliation":[{"name":"Astrid Lindgren Children's Hospital Karolinska University Hospital Stockholm Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,6,16]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(12)61901-1"},{"key":"e_1_2_9_3_1","first-page":"CD004977","article-title":"Pneumococcal conjugate vaccines for preventing vaccine\u2010type invasive pneumococcal disease and X\u2010ray defined pneumonia in children less than two years of age","author":"Lucero MG","year":"2009","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0011989"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamapediatrics.2013.186"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3476(63)80215-2"},{"key":"e_1_2_9_7_1","doi-asserted-by":"crossref","first-page":"334","DOI":"10.1542\/peds.35.2.334","article-title":"Diagnosis and treatment: management of acute viral bronchiolitis in infancy","volume":"35","author":"Wright FH","year":"1965","journal-title":"Pediatrics"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.7326\/M13-1419"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra1413456"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2013-4177"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1473-3099(15)70017-4"},{"key":"e_1_2_9_12_1","first-page":"353","article-title":"Standardized interpretation of paediatric chest radiographs for the diagnosis of pneumonia in epidemiological studies","volume":"83","author":"Cherian T","year":"2005","journal-title":"Bull World Health Organ"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1080\/02841850510021238"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-199604000-00017"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa1405870"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1136\/thoraxjnl-2015-206933"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.3201\/eid1907.121625"},{"key":"e_1_2_9_18_1","first-page":"D7IW","article-title":"Barnvaccinationsprogrammet \u2013 effektivt men otillr\u00e4ckligt. 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