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Pediatric and Developmental Pathology

, Volume 6, Issue 2, pp 160–167 | Cite as

Reference Values for Second Trimester Fetal and Neonatal Organ Weights and Measurements

  • Katrine Hansen
  • C. James Sung
  • Carol Huang
  • Halit Pinar
  • Don B. Singer
  • Calvin E. Oyer

To establish accurate reference ranges for the entire second trimester, we documented organ weights, body weight, and linear measurements for 597 fetuses and neonates with gestational ages ranging from 12 to 26 wk. We determined the mean and standard deviation for weights and measurements at each week of gestation using the StatView™ SE + Graphics statistical program. The analyses revealed a linear correlation between the gestational age and, respectively, the toe-heel length, crown-rump length, and crown-heel length. Body and organ weights increase at varying rates throughout the second trimester. The data correlate well with weights and measurements previously published for the latter half of the second trimester, and extend these reference ranges to encompass the entire second trimester.

Keywords

Standard Deviation Body Weight Linear Correlation Reference Range Statistical Program 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Society for Pediatric Pathology 2003

Authors and Affiliations

  • Katrine Hansen
    • 1
  • C. James Sung
    • 1
  • Carol Huang
    • 1
  • Halit Pinar
    • 1
  • Don B. Singer
    • 1
  • Calvin E. Oyer
    • 1
  1. 1.Department of Pathology, Women and Infants Hospital of Rhode Island and Brown Medical School, 101 Dudley Street, Providence, RI 02905, USAUS

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