{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T10:15:36Z","timestamp":1778062536467,"version":"3.51.4"},"reference-count":33,"publisher":"American Academy of Pediatrics (AAP)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,9,1]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVES<\/jats:title>\n                    <jats:p>To characterize temperature percentiles for infants at least 35\u00a0weeks\u2019 gestation through the first 48\u00a0hours of their birth hospitalization in the newborn nursery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>This retrospective cross-sectional study used electronic health record data from mothers and newborns admitted to a university-affiliated newborn nursery between May 2015 and August 2021. Axillary temperature values measured during the nursery stay were analyzed in prespecified time intervals to generate first, fifth, 50th, 95th, and 99th temperature percentiles from birth through 48\u00a0hours after birth. Descriptive, stratified subanalyses by infant sex, gestational age, birth weight, mode of delivery, and exposure to maternal peripartum fever were also conducted.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>We analyzed 227\u2009813 axillary temperature values from 23\u2009352 infants. The median temperature ranged from 36.9 \u00b0C at birth to 37.0 \u00b0C at 48\u00a0hours following birth. The temperature range between the first and 99th percentile was widest at birth (36.1\u201338.4 \u00b0C, \u03b4 2.3 \u00b0C) and narrowed thereafter to a range of 36.5 \u00b0C to 37.8 \u00b0C (\u03b4 1.3 \u00b0C) at 48\u00a0hours following birth. Temperature percentiles did not differ by sex but did increase minimally with increases in gestational age and birth weight; however, 95% CIs often overlapped. Infants delivered via cesarean had lower temperatures at birth than infants born vaginally, and infants exposed to peripartum maternal fever had higher temperatures following birth than nonexposed infants.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>These hour-specific temperature percentiles in late preterm and term infants in the newborn nursery strengthen the foundation for interpreting newborn temperatures in clinical context and highlight the need for more nuanced, evidence-based approaches to hypothermia evaluation and management.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1542\/peds.2025-070973","type":"journal-article","created":{"date-parts":[[2025,8,22]],"date-time":"2025-08-22T00:02:48Z","timestamp":1755820968000},"source":"Crossref","is-referenced-by-count":0,"title":["Temperature Percentiles by Hour of Life in the Newborn Nursery"],"prefix":"10.1542","volume":"156","author":[{"given":"Rebecca","family":"Dang","sequence":"first","affiliation":[{"name":"1Division of Pediatric Hospital Medicine, Department of Pediatrics, Stanford University, Palo Alto, California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adam","family":"Frymoyer","sequence":"additional","affiliation":[{"name":"2Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University, Palo Alto, California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anisha I.","family":"Patel","sequence":"additional","affiliation":[{"name":"3Division of General Pediatrics, Department of Pediatrics, Stanford University, Palo Alto, California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yingjie","family":"Weng","sequence":"additional","affiliation":[{"name":"4Quantitative Sciences Unit, Department of Medicine, Stanford University, Palo Alto, California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alan R.","family":"Schroeder","sequence":"additional","affiliation":[{"name":"1Division of Pediatric Hospital Medicine, Department of Pediatrics, Stanford University, Palo Alto, California"},{"name":"5Division of Pediatric Critical Care, Department of Pediatrics, Stanford University, Palo Alto, California"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"417","published-online":{"date-parts":[[2025,8,22]]},"reference":[{"issue":"3","key":"2026050605430137400_r1","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1001\/archpediatrics.2008.556","article-title":"Routine assessment of temperature in healthy newborns: lack of evidence for its clinical utility","volume":"163","author":"Jaffe","year":"2009","journal-title":"Arch Pediatr Adolesc 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(Phila)."}],"container-title":["Pediatrics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/publications.aap.org\/pediatrics\/article-pdf\/doi\/10.1542\/peds.2025-070973\/1843290\/pediatrics.2025070973.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/publications.aap.org\/pediatrics\/article-pdf\/doi\/10.1542\/peds.2025-070973\/1843290\/pediatrics.2025070973.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T09:43:10Z","timestamp":1778060590000},"score":1,"resource":{"primary":{"URL":"https:\/\/publications.aap.org\/pediatrics\/article\/156\/3\/e2025070973\/203210\/Temperature-Percentiles-by-Hour-of-Life-in-the"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8,22]]},"references-count":33,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2025,8,22]]},"published-print":{"date-parts":[[2025,9,1]]}},"URL":"https:\/\/doi.org\/10.1542\/peds.2025-070973","relation":{},"ISSN":["0031-4005","1098-4275"],"issn-type":[{"value":"0031-4005","type":"print"},{"value":"1098-4275","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,8,22]]},"article-number":"e2025070973"}}