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Approaches for Constructing Age-Related Reference Intervals and Centile Charts for Fetal Size

Author(s): Hynek M

The assessment of the fetal size based on ultrasound biometry is important for proper pregnancy management. The means for evaluations of these measurements represent age-related reference intervals and centile charts which are used to detect the extreme values, possibly indicating pathology. The key features concerning the design of studies used for the construction of these intervals are given. The aim of this paper is to review possible statistical approaches, pointing out the methodology, goodness of fit, advantages and limitations.


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