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Kidney size and function in a multi-ethnic population-based cohort of school-age children

Hanneke Bakker1, Marjolein N Kooijman, Albert J van der Heijden

  • 1The Generation R Study Group, Erasmus Medical Center, Rotterdam, The Netherlands.

Pediatric Nephrology (Berlin, Germany)
|March 7, 2014
PubMed

Insights

Childhood kidney size and function are linked to body mass index and ethnicity. Early identification of at-risk individuals can help prevent future kidney disease.

Area of Science:

  • Pediatric Nephrology
  • Public Health
  • Biostatistics

Background:

  • Subclinical impaired kidney growth in childhood can lead to adult kidney disease and hypertension.
  • Understanding childhood kidney development is crucial for long-term health outcomes.

Purpose of the Study:

  • To examine the cross-sectional associations between childhood characteristics and kidney size and function.
  • To identify factors influencing kidney development in a multi-ethnic pediatric cohort.

Main Methods:

  • A population-based cohort study of 6,397 children (median age 6.0 years).
  • Measurements included kidney volume, serum creatinine and cystatin C, microalbuminuria, and blood pressure.
  • Glomerular filtration rate (GFR) was estimated using established formulas.

Main Results:

  • Childhood anthropometrics correlated positively with kidney volume, creatinine levels, and blood pressure.
  • Significant ethnic differences were observed in all kidney size and function parameters.
  • Smaller kidney volume was associated with higher creatinine/cystatin C and lower estimated GFR.
  • Larger kidney volume correlated with an increased risk of microalbuminuria.

Conclusions:

  • Childhood kidney volume and function are influenced by body mass index and ethnicity.
  • Kidney volume is related to kidney function but not directly to blood pressure in children.
  • These findings aid in the early identification of children at risk for kidney disease.
Abstract

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