{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,15]],"date-time":"2026-08-15T03:31:54Z","timestamp":1786764714597,"version":"build-2736575974"},"reference-count":40,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2017,11,29]],"date-time":"2017-11-29T00:00:00Z","timestamp":1511913600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100006706","name":"Tampereen Tuberkuloosis\u00e4\u00e4ti\u00d6","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100006706","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pediatric Pulmonology"],"published-print":{"date-parts":[[2018,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To evaluate the frequency and predictors of hospital admissions for lower respiratory tract infections (LRTIs) in moderately preterm (MP, 32<jats:sup>+0<\/jats:sup> to 33<jats:sup>+6<\/jats:sup> weeks) and late preterm (LP, 34<jats:sup>+0<\/jats:sup> to 36<jats:sup>+6<\/jats:sup> weeks) infants compared to term (T \u226537 weeks) and very preterm (VP, &lt;32<jats:sup>+0<\/jats:sup> weeks) infants.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>This national register\u2010based study covered all infants born in Finland in 1991\u20102008. Data on 1\u2009018\u2009256 infants were analyzed in four gestational age\u2010based groups: VP (<jats:italic>n<\/jats:italic>\u2009=\u20096329), MP (<jats:italic>n<\/jats:italic>\u2009=\u20096796), LP (<jats:italic>n<\/jats:italic>\u2009=\u200939\u2009928), and T (<jats:italic>n<\/jats:italic>\u2009=\u2009965\u2009203) groups. Data on hospital admissions due to bronchiolitis\/bronchitis and pneumonia were collected up to the age of 7 years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Hospital admissions for LRTIs were more common in the MP and LP groups than in the T group but less frequent than in the VP group: bronchiolitis\/bronchitis (VP 24.4%, MP 13.9%, LP 9.5%, and T 5.6%) and pneumonia (VP 8.8%, MP 4.5%, LP 3.3%, and T 2.4%). Compared to the term group, MP and LP birth predicted bronchiolitis\/bronchitis (MP OR 1.89; 95%CI 1.75\u20102.03, LP 1.51; 1.45\u20101.56) and pneumonia (MP 1.49; 1.32\u20101.67, LP 1.25; 1.18\u20101.33) admissions. Statistically significant risk factors for LRTIs included maternal smoking, cesarean section, male sex, admission to a neonatal unit and ventilator therapy. In addition, being first\u2010born, being born SGA and neonatal antibiotic therapy were associated with bronchiolitis\/bronchitis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>MP and LP births, in addition to VP birth, have a significant impact on respiratory infectious morbidity and the need of hospital admissions for LRTIs.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ppul.23908","type":"journal-article","created":{"date-parts":[[2017,11,29]],"date-time":"2017-11-29T17:54:22Z","timestamp":1511978062000},"page":"209-217","source":"Crossref","is-referenced-by-count":43,"title":["Hospital admissions for lower respiratory tract infections in children born moderately\/late preterm"],"prefix":"10.1002","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9699-1547","authenticated-orcid":false,"given":"Paula","family":"Haataja","sequence":"first","affiliation":[{"name":"Department of Pediatrics Tampere University Hospital Tampere Finland"},{"name":"Tampere Center for Child Health Research University of Tampere Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P\u00e4ivi","family":"Korhonen","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Tampere University Hospital Tampere Finland"},{"name":"Tampere Center for Child Health Research University of Tampere Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Riitta","family":"Ojala","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Tampere University Hospital Tampere Finland"},{"name":"Tampere Center for Child Health Research University of Tampere Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mikko","family":"Hirvonen","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Tampere University Hospital Tampere Finland"},{"name":"Tampere Center for Child Health Research University of Tampere Tampere Finland"},{"name":"Central Finland Health Care District Jyv\u00e4skyl\u00e4 Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matti","family":"Korppi","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Tampere University Hospital Tampere Finland"},{"name":"Tampere Center for Child Health Research University of Tampere Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mika","family":"Gissler","sequence":"additional","affiliation":[{"name":"Information Services Department THL National Institute for Health and Welfare Helsinki Finland"},{"name":"Research Centre for Child Psychiatry University of Turku Turku Finland"},{"name":"Karolinska Institute Department of Neurobiology Care Sciences and Society Division of Family Medicine Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tiina","family":"Luukkaala","sequence":"additional","affiliation":[{"name":"Health Sciences Faculty of Social Sciences University of Tampere Tampere Finland"},{"name":"Research and Innovation Centre Tampere University Hospital Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Outi","family":"Tammela","sequence":"additional","affiliation":[{"name":"Department of Pediatrics Tampere University Hospital Tampere Finland"},{"name":"Tampere Center for Child Health Research University of Tampere Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2017,11,29]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.siny.2012.01.007"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2009-1381"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prrv.2014.12.001"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(12)61901-1"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.e896"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1473-3099(16)00150-X"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2013-1737"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/ppe.12295"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201211-2070OC"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1136\/archdischild-2015-308723"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jaci.2015.07.040"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00431-016-2708-8"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2014-0945"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/apa.12671"},{"key":"e_1_2_8_16_1","unstructured":"Acute lower respiratory tract infection in children (online). 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