Reference indices for evaluating kidney dimensions in children using anthropometric measurements.

Area of Science:

• Pediatric Nephrology
• Medical Imaging
• Anthropometry

Background:

• Kidney size changes are common indicators of renal pathologies.
• Establishing normal kidney dimensions is crucial for diagnosing and managing pediatric kidney diseases.
• Accurate reference ranges are needed for Nigerian children.

Purpose of the Study:

• To determine age-, height-, and weight-matched kidney dimensions in healthy Nigerian children.
• To provide normative data for pediatric renal assessment in Nigeria.
• To correlate kidney parameters with anthropometric measurements and sex.

Main Methods:

• A descriptive, cross-sectional study involving 1315 Nigerian school-aged children (5-17 years).
• Kidney parameters (length, width, thickness, volume) measured using ultrasound.
• Statistical analysis correlated kidney dimensions with age, sex, and anthropometric data.

Main Results:

• Normative values for kidney dimensions were established for different age, height, weight, and gender groups.
• Left kidneys were generally longer and thicker with greater volume; right kidneys were wider.
• Significant correlations were found between renal parameters and body size indicators (except BMI), with sex-based differences observed.

Conclusions:

• This study provides gender-, age-, weight-, and height-specific normative ranges for kidney parameters in Nigerian children.
• Regression models were developed to aid in the assessment of pediatric renal health.
• The findings are essential for accurate screening, diagnosis, and follow-up of kidney conditions in this population.