Haematological values in healthy Nigerian infants

Area of Science:

• Hematology
• Pediatrics
• African Health

Background:

• Establishing accurate reference ranges for hematological indices is crucial for diagnosing anemia and other conditions in infants.
• Existing reference ranges for red blood cell indices are often based on Caucasian populations, potentially leading to misdiagnosis in diverse ethnic groups.

Purpose of the Study:

• To determine normal values for key hematological indices in healthy Nigerian neonates and infants.
• To compare these values with those established for Caucasian infants.
• To assess the influence of factors like infant sex, delivery method, and sickle cell trait on these indices.

Main Methods:

• Serial electronic determination of hemoglobin concentration, packed cell volume, red blood cell counts, and mean cell volume.
• Study cohort included 99 healthy, full-term Nigerian babies and infants aged 1 day to 6 months.
• Analysis included comparison with established Caucasian infant data and assessment of influencing factors.

Main Results:

• Mean values for hemoglobin concentration, packed cell volume, and red blood cell counts were consistently lower in Nigerian infants compared to Caucasian infants across all age groups.
• The pattern of red cell indices over the first six months of life was similar between Nigerian and Caucasian infants.
• Infant sex, method of delivery, and heterozygous sickle cell trait did not significantly influence the measured red cell indices.

Conclusions:

• The findings support the need for separate, race-specific reference ranges for hematological indices in black neonates and infants.
• Adoption of distinct reference levels can improve the accuracy of diagnosis and management of hematological disorders in this population.
• Further research may explore the underlying physiological or environmental factors contributing to the observed differences.