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. 2019 Jun;27(2):78–84. doi: 10.5455/aim.2019.27.78-84

Table 3. Performance of various formulas in differentiating BTMi from other causes of microcytic hypochromic anemia.

Accuracy (%) Specificity Sensitivity Method
74.2 70.5 75.7 Mentzer index MCV/RBC
73.8 75.0 73.4 Srivastava formula MCH/RBC
76.7 70.0 79.5 Ehsani formula MCV-10 *RBC
86.9 87.9 84.7 New formula |80-MCV|*|27-MCH|
– – - 80.3 90.9 Mentzer index