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Temperature Percentiles by Hour of Life in the Newborn Nursery.

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Title: Temperature Percentiles by Hour of Life in the Newborn Nursery.
Authors: Dang, Rebecca, Frymoyer, Adam, Patel, Anisha I., Weng, Yingjie, Schroeder, Alan R.
Source: Pediatrics. Sep2025, Vol. 156 Issue 3, p1-10. 10p.
Subjects: Newborn screening, Cross-sectional method, Cesarean section, Statistical models, Hypothermia, Academic medical centers, Research funding, Delivery (Obstetrics), Vagina, Axilla, Prenatal exposure delayed effects, Retrospective studies, Descriptive statistics, Fever, Children's hospitals, Hospital care of newborn infants, Hospital nurseries, Body temperature, Medical records, Acquisition of data, Gestational age, Medical thermometry, Confidence intervals, Birth weight, Data analysis software, Regression analysis, Disease incidence
Abstract: OBJECTIVES: To characterize temperature percentiles for infants at least 35 weeks' gestation through the first 48 hours of their birth hospitalization in the newborn nursery. METHODS: 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 hours after birth. Descriptive, stratified subanalyses by infant sex, gestational age, birth weight, mode of delivery, and exposure to maternal peripartum fever were also conducted. RESULTS: We analyzed 227 813 axillary temperature values from 23 352 infants. The median temperature ranged from 36.9 °C at birth to 37.0 °C at 48 hours following birth. The temperature range between the first and 99th percentile was widest at birth (36.1-38.4 °C, δ 2.3 °C) and narrowed thereafter to a range of 36.5 °C to 37.8 °C (δ 1.3 °C) at 48 hours 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. CONCLUSIONS: 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. [ABSTRACT FROM AUTHOR]
Copyright of Pediatrics is the property of American Academy of Pediatrics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Temperature Percentiles by Hour of Life in the Newborn Nursery.
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  Data: <searchLink fieldCode="AR" term="%22Dang%2C+Rebecca%22">Dang, Rebecca</searchLink><br /><searchLink fieldCode="AR" term="%22Frymoyer%2C+Adam%22">Frymoyer, Adam</searchLink><br /><searchLink fieldCode="AR" term="%22Patel%2C+Anisha+I%2E%22">Patel, Anisha I.</searchLink><br /><searchLink fieldCode="AR" term="%22Weng%2C+Yingjie%22">Weng, Yingjie</searchLink><br /><searchLink fieldCode="AR" term="%22Schroeder%2C+Alan+R%2E%22">Schroeder, Alan R.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Pediatrics%22">Pediatrics</searchLink>. Sep2025, Vol. 156 Issue 3, p1-10. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Newborn+screening%22">Newborn screening</searchLink><br /><searchLink fieldCode="DE" term="%22Cross-sectional+method%22">Cross-sectional method</searchLink><br /><searchLink fieldCode="DE" term="%22Cesarean+section%22">Cesarean section</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+models%22">Statistical models</searchLink><br /><searchLink fieldCode="DE" term="%22Hypothermia%22">Hypothermia</searchLink><br /><searchLink fieldCode="DE" term="%22Academic+medical+centers%22">Academic medical centers</searchLink><br /><searchLink fieldCode="DE" term="%22Research+funding%22">Research funding</searchLink><br /><searchLink fieldCode="DE" term="%22Delivery+%28Obstetrics%29%22">Delivery (Obstetrics)</searchLink><br /><searchLink fieldCode="DE" term="%22Vagina%22">Vagina</searchLink><br /><searchLink fieldCode="DE" term="%22Axilla%22">Axilla</searchLink><br /><searchLink fieldCode="DE" term="%22Prenatal+exposure+delayed+effects%22">Prenatal exposure delayed effects</searchLink><br /><searchLink fieldCode="DE" term="%22Retrospective+studies%22">Retrospective studies</searchLink><br /><searchLink fieldCode="DE" term="%22Descriptive+statistics%22">Descriptive statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Fever%22">Fever</searchLink><br /><searchLink fieldCode="DE" term="%22Children's+hospitals%22">Children's hospitals</searchLink><br /><searchLink fieldCode="DE" term="%22Hospital+care+of+newborn+infants%22">Hospital care of newborn infants</searchLink><br /><searchLink fieldCode="DE" term="%22Hospital+nurseries%22">Hospital nurseries</searchLink><br /><searchLink fieldCode="DE" term="%22Body+temperature%22">Body temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+records%22">Medical records</searchLink><br /><searchLink fieldCode="DE" term="%22Acquisition+of+data%22">Acquisition of data</searchLink><br /><searchLink fieldCode="DE" term="%22Gestational+age%22">Gestational age</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+thermometry%22">Medical thermometry</searchLink><br /><searchLink fieldCode="DE" term="%22Confidence+intervals%22">Confidence intervals</searchLink><br /><searchLink fieldCode="DE" term="%22Birth+weight%22">Birth weight</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis+software%22">Data analysis software</searchLink><br /><searchLink fieldCode="DE" term="%22Regression+analysis%22">Regression analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Disease+incidence%22">Disease incidence</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: OBJECTIVES: To characterize temperature percentiles for infants at least 35 weeks' gestation through the first 48 hours of their birth hospitalization in the newborn nursery. METHODS: 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 hours after birth. Descriptive, stratified subanalyses by infant sex, gestational age, birth weight, mode of delivery, and exposure to maternal peripartum fever were also conducted. RESULTS: We analyzed 227 813 axillary temperature values from 23 352 infants. The median temperature ranged from 36.9 °C at birth to 37.0 °C at 48 hours following birth. The temperature range between the first and 99th percentile was widest at birth (36.1-38.4 °C, δ 2.3 °C) and narrowed thereafter to a range of 36.5 °C to 37.8 °C (δ 1.3 °C) at 48 hours 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. CONCLUSIONS: 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. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Pediatrics is the property of American Academy of Pediatrics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=188160134
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1542/peds.2025-070973
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 1
    Subjects:
      – SubjectFull: Newborn screening
        Type: general
      – SubjectFull: Cross-sectional method
        Type: general
      – SubjectFull: Cesarean section
        Type: general
      – SubjectFull: Statistical models
        Type: general
      – SubjectFull: Hypothermia
        Type: general
      – SubjectFull: Academic medical centers
        Type: general
      – SubjectFull: Research funding
        Type: general
      – SubjectFull: Delivery (Obstetrics)
        Type: general
      – SubjectFull: Vagina
        Type: general
      – SubjectFull: Axilla
        Type: general
      – SubjectFull: Prenatal exposure delayed effects
        Type: general
      – SubjectFull: Retrospective studies
        Type: general
      – SubjectFull: Descriptive statistics
        Type: general
      – SubjectFull: Fever
        Type: general
      – SubjectFull: Children's hospitals
        Type: general
      – SubjectFull: Hospital care of newborn infants
        Type: general
      – SubjectFull: Hospital nurseries
        Type: general
      – SubjectFull: Body temperature
        Type: general
      – SubjectFull: Medical records
        Type: general
      – SubjectFull: Acquisition of data
        Type: general
      – SubjectFull: Gestational age
        Type: general
      – SubjectFull: Medical thermometry
        Type: general
      – SubjectFull: Confidence intervals
        Type: general
      – SubjectFull: Birth weight
        Type: general
      – SubjectFull: Data analysis software
        Type: general
      – SubjectFull: Regression analysis
        Type: general
      – SubjectFull: Disease incidence
        Type: general
    Titles:
      – TitleFull: Temperature Percentiles by Hour of Life in the Newborn Nursery.
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            NameFull: Dang, Rebecca
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            NameFull: Frymoyer, Adam
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            NameFull: Patel, Anisha I.
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            NameFull: Weng, Yingjie
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              M: 09
              Text: Sep2025
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              Y: 2025
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