Comparison of Commonly Used Methods to Predict the Final Height in Constitutional Tall Stature

Area of Science:

• Pediatric Endocrinology
• Growth and Development
• Medical Statistics

Background:

• Constitutional tall stature is a common condition in children.
• Accurate prediction of adult height is crucial for clinical management and parental counseling.
• Existing prediction methods may have limitations, especially in prepubertal and early pubertal children.

Purpose of the Study:

• To evaluate the accuracy of the Bayley-Pinneau (BP) and Tanner-Whitehouse I (TWI) methods for predicting adult height in children with constitutional tall stature.
• To compare predicted height standard deviation scores (SDS) with actual adult height SDS.

Main Methods:

• Retrospective analysis of medical records of 138 children (52 male, 86 female) with constitutional tall stature (height ≥90th percentile).
• Children were prepubertal or early pubertal at the time of referral.
• Adult height was assessed at age 17 years using height SDS, compared with referral height SDS using BP and TWI methods.

Main Results:

• Children remained tall, but their height SDS at age 17 was lower than at referral.
• Boys' height SDS decreased from 2.13±1 to 1.65±1.21.
• Girls' height SDS decreased from 2.48±1 to 2.15±1.

Conclusions:

• The BP and TWI prediction methods are useful for estimating adult height in children with constitutional tall stature, even in the prepubertal and early pubertal stages.
• Clinicians should be aware of the potential fallibility of these prediction methods.
• This study provides insights into the accuracy and limitations of adult height prediction in this population.