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Updated: May 2, 2026

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Hemoglobin cut-off values in healthy Turkish infants
Ahmet Arvas1, Emel Gür, Durmuş Doğan
1Department of Pediatrics, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey, aarvas@istanbul.edu.tr.
This study determined hemoglobin cut-off values for infant anemia, finding lower levels than WHO criteria in a developing country. Re-evaluating these values is crucial for infant health and development.
Area of Science:
- Pediatrics
- Hematology
- Public Health
Background:
- Anemia poses a significant public health risk, increasing morbidity and mortality.
- Establishing accurate diagnostic criteria for infant anemia is essential.
Purpose of the Study:
- To determine the specific hemoglobin (Hb) cut-off values for diagnosing anemia in healthy infants.
- To compare these values with existing World Health Organization (WHO) criteria.
Main Methods:
- A retrospective cross-sectional study involving 1484 healthy infants aged 4-24 months.
- Analysis of hemoglobin levels across four age groups.
- Evaluation of Hb levels in relation to maternal age, birth weight, weight gain rate, feeding practices, and gender.
Main Results:
- Hemoglobin cut-off values (5th percentile) were established for different infant age groups (e.g., 97 g/L at 4 months, 93 g/L at 6 months).
- Determined cut-off values were generally lower than WHO criteria, potentially due to iron status variations in the studied population.
- Female infants showed higher Hb levels, with a significant difference noted at 6 months; no significant associations were found with maternal age, birth weight, or weight gain rate.
Conclusions:
- Current hemoglobin cut-off values for infant anemia may require re-evaluation.
- Recommended cut-offs should align with the specific growth and developmental context of the community.
- Further research is needed to establish precise normal Hb levels for infants in developing countries.
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