Gender differences of final height contributed by parents' height among healthy individuals

Area of Science:

• Pediatric Endocrinology
• Human Genetics
• Anthropometry

Background:

• Accurate estimation of children's final height is crucial for diagnosing and managing short stature.
• Understanding the influence of parental height on offspring final height is essential for clinical practice.
• Previous studies have explored parental height contributions, but specific gender-based analyses in diverse populations are needed.

Purpose of the Study:

• To characterize the relationship between parental heights and offspring final heights by gender in the Taiwanese population.
• To assess the differential contributions of fathers and mothers to the tallest and shortest child's height.
• To evaluate the predictive accuracy of different models for estimating final height based on parental stature.

Main Methods:

• Recruited 2149 healthy adults (25-35 years) for height measurements and parental height data collection.
• Employed simple linear regressions and scatter plots to analyze parental contributions to offspring height by gender.
• Performed statistical comparisons using the corrected midparental height method and a final height for parental height model.

Main Results:

• Fathers' height showed the strongest contribution to the tallest son's final height (adjusted R²=0.20).
• Mothers' height demonstrated the strongest contribution to the shortest daughter's final height (adjusted R²=0.18).
• The final height for parental height model provided better prediction for the tallest son's height based on midparental height.

Conclusions:

• The study provides a reasonable estimation of final heights for the Taiwanese population, useful for clinical practice.
• Findings support the evaluation of growth hormone replacement therapies for non-growth hormone defect short stature.
• Gender-specific parental height contributions offer valuable insights for predicting final adult stature.