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Haematological and biochemical reference intervals for infants and children in Gabon
Alexander Humberg1, Judith Kammer, Benjamin Mordmüller
1Medical Research Unit, Albert Schweitzer Hospital, Lambaréné, Gabon.
Insights
This study established crucial hematological and biochemical reference intervals for Gabonese infants and children. These findings highlight population-specific variations in blood parameters, essential for accurate clinical diagnosis.
Area of Science:
- Clinical Biochemistry
- Hematology
- Pediatric Health
Background:
- Establishing population-specific reference intervals is vital for accurate medical diagnosis.
- Previous studies have shown variations in hematological parameters across different ethnic groups.
Purpose of the Study:
- To determine reference intervals for key hematological and biochemical markers in Gabonese infants and children.
- To provide a benchmark for clinical laboratory testing in Central Africa.
Main Methods:
- Analyzed blood samples from 226 healthy infants (4-9 weeks) and 185 healthy children (18-60 months).
- Measured red blood cell parameters, white blood cell counts, glutamate-pyruvic transaminase, creatinine, and total bilirubin.
- Utilized nonparametric methods to establish 95% reference limits according to Clinical and Laboratory Standards Institute guidelines.
Main Results:
- Gabonese children exhibited lower hemoglobin, hematocrit, red blood cell count, and mean corpuscular volume compared to European populations.
- Higher platelet counts were observed in the Gabonese cohort.
- Elevated eosinophil counts in older children suggest a potential link to intestinal helminth infections.
Conclusions:
- The study underscores the necessity of local reference ranges for pediatric populations.
- These established reference intervals serve as a valuable benchmark for similar Central African populations.
- Understanding regional variations in hematological and biochemical parameters improves diagnostic accuracy.
Objectives:
To establish reference intervals for major haematological and biochemical parameters in Gabonese infants and children.
Methods:
The reference sample population consisted of 226 healthy infants (4-9 weeks of age) and 185 healthy children (18-60 months of age). Basic red cell parameters as well as total and differential white blood cell counts were performed. Clinical chemistry parameters consisted of glutamate-pyruvic transaminase and creatinine, and total bilirubin was measured in children. Statistical analysis was based on the guidelines of the Clinical and Laboratory Standards Institute. Nonparametric methods were used to determine 95% reference limits and their 90% confidence intervals.
Results:
Compared to European populations, values for several red cell parameters (haemoglobin, haematocrit, red blood cell count, mean corpuscular volume) were lower and platelet counts were higher. Eosinophils were higher in the older age group, most likely caused by intestinal helminths.
Conclusions:
The study confirms the importance of establishing reference limits for local populations. The reference ranges could be used as a benchmark for similar populations in Central Africa.
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