Table 2. Two-by-two table for validating... | American Society of Hematology

Table 2.

Two-by-two table for validating the SCD genotype algorithm

Genotype based on the algorithm	Genotype based on registry/chart reviews		Do not have SCD
Genotype based on the algorithm	HbSS/HbSβ⁰ thalassemia	Other sickle cell genotype	Do not have SCD
HbSS/HbSβ⁰ thalassemia	188	4	0
Other sickle cell genotype	10	134	7
Patients with SCD not identified by the algorithm	11	13	—
Total number of SCD patients	209	151	—

Genotype based on the algorithm	Genotype based on registry/chart reviews		Do not have SCD
Genotype based on the algorithm	HbSS/HbSβ⁰ thalassemia	Other sickle cell genotype	Do not have SCD
HbSS/HbSβ⁰ thalassemia	188	4	0
Other sickle cell genotype	10	134	7
Patients with SCD not identified by the algorithm	11	13	—
Total number of SCD patients	209	151	—