Abstract
Background: Anemia is a global public health problem affecting developed and adversely affecting developing coun
tries. About 1.62 billion peoples are affected worldwide, currently pregnant women are the most vulnerable population
corresponding to 24.8%. Objective: To evaluate RBC indices and significance of Mentzer index for differentiation
between Iron deficiency anemia and Beta thalassemia trait. Patients and methods: Cross sectional study was conducted
in Babylon Maternity and Pediatrics Teaching Hospital for a period of 4 months. Data was collected prospectively
after approval of the research proposal was gained, the study involved 114 patients that were referred to the Babylon
Maternity and Pediatrics Teaching Hospital. Results: The average age of IDA patients was 11.79 6.09, while that of
BTT patients was 12.15 5.26. There was no significant relationship between the mean age of patients with illness.
Those with a Mentzer Index greater than 13 are more likely to have IDA (sensitivity 95.6%) and less likely to have beta
thalassemia (specificity 95.6%). Patients with a Mentzer Index <13 are more likely to have TT (sensitivity 72.7%)
and non-probability of IDA (specificity 72.7%). Conclusion: Clinicians face a dilemma distinguishing between iron
deficiency anemia and beta thalassemia in anemic patients since diagnostic tests are not inexpensive to the majority
of the population. The Mentzer Index can be used as a screening test for iron deficiency anemia, with sensitivity and
specificity of 95.6% and 72.7%, respectively, and for beta thalassemia. Those with a Mentzer Index <13 can undergo
Hb electrophoresis for confirmation.
tries. About 1.62 billion peoples are affected worldwide, currently pregnant women are the most vulnerable population
corresponding to 24.8%. Objective: To evaluate RBC indices and significance of Mentzer index for differentiation
between Iron deficiency anemia and Beta thalassemia trait. Patients and methods: Cross sectional study was conducted
in Babylon Maternity and Pediatrics Teaching Hospital for a period of 4 months. Data was collected prospectively
after approval of the research proposal was gained, the study involved 114 patients that were referred to the Babylon
Maternity and Pediatrics Teaching Hospital. Results: The average age of IDA patients was 11.79 6.09, while that of
BTT patients was 12.15 5.26. There was no significant relationship between the mean age of patients with illness.
Those with a Mentzer Index greater than 13 are more likely to have IDA (sensitivity 95.6%) and less likely to have beta
thalassemia (specificity 95.6%). Patients with a Mentzer Index <13 are more likely to have TT (sensitivity 72.7%)
and non-probability of IDA (specificity 72.7%). Conclusion: Clinicians face a dilemma distinguishing between iron
deficiency anemia and beta thalassemia in anemic patients since diagnostic tests are not inexpensive to the majority
of the population. The Mentzer Index can be used as a screening test for iron deficiency anemia, with sensitivity and
specificity of 95.6% and 72.7%, respectively, and for beta thalassemia. Those with a Mentzer Index <13 can undergo
Hb electrophoresis for confirmation.
Keywords
Beta thalassemia trait
Diagnostic accuracy
Hematopathology
Iron deficiency anemia
Mentzer index
RBC indices