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Comparison of screening indicators for different types of thalassemia carriers in Hunan Province
Hua Tang1, Rong Yu2, Ziyin Yu1
1Maternal and Child Health Hospital of Hunan Province, Department of Medical Genetic, Changsha City, Hunan Province, China.
Insights
This study evaluated common indicators for identifying alpha, beta, and compound alpha-beta thalassemia carriers in Hunan Province. Findings aid in distinguishing carrier types for effective thalassemia prevention.
Area of Science:
- Genetics
- Hematology
- Public Health
Background:
- Thalassemia carrier screening is crucial for preventing the genetic blood disorder.
- Variations in race and genotype affect standard indicators like MCV, MCH, and HbA2.
- Accurate identification of different thalassemia types is essential for effective screening.
Purpose of the Study:
- To evaluate common screening indicators for alpha, beta, and compound alpha-beta thalassemia carriers in Hunan Province.
- To assess the utility of existing formulas in predicting and differentiating thalassemia carrier types.
- To improve the accuracy of thalassemia carrier identification in the region.
Main Methods:
- Utilized receiver operating characteristic (ROC) curve analysis combined with the Youden index.
- Analyzed data from blood routine examinations and hemoglobin electrophoresis.
- Applied literature-related formulas to a cohort of 1111 alpha-thalassemia, 464 beta-thalassemia, and 24 compound alpha-beta thalassemia carriers.
Main Results:
- Identified optimal screening indicators and formulas for distinguishing between different thalassemia carrier types.
- Demonstrated the effectiveness of ROC curve analysis in evaluating diagnostic accuracy.
- Provided a basis for refined thalassemia screening protocols in Hunan Province.
Conclusions:
- Common screening indicators, when analyzed with ROC curves and specific formulas, can effectively differentiate between alpha, beta, and compound alpha-beta thalassemia carriers.
- The study provides a validated approach for improving the accuracy of thalassemia carrier screening in the studied population.
- Refined screening strategies based on these findings can enhance the prevention of thalassemia.
Background:
Carrier screening is the most effective method to block the occurrence of thalassemia. However, due to differences in race and genotype, MCV, MCH, HbA2 and other indicators are far from each other. The purpose of this study is to evaluate the common screening indicators of a, b and ab-compound thalassemia carriers in Hunan Province, and try to use the relevant formulas in the existing literature to predict and distinguish different types of thalassemia carriers.
Methods:
Receiver operating characteristic curve (ROC curve) combined with Youden index was utilized to analyze results of blood routine examination, hemoglobin electrophoresis, and literature-related formulas for 1111 a-thalassemia carriers, 464 b-thalassemia carriers and 24 ab-thalassemia carriers.
