TABLE 1.

INCIDENCE OF PULMONARY HYPERTENSION AMONG DIFFERENT TYPES OF HEMOLYTIC ANEMIA

Hemolytic Anemia Type	Incidence	References
Hemoglobin SS disease	Increased	9, 73
Hemoglobin SC disease	Increased	73, 76
Hemoglobin SOArab disease	Increased	73
Hemoglobin Sβ+ disease	Increased	73, 76, 98
Hemoglobin Sβ0 disease	Increased	73
β-Thalassemia major	Increased	99–101
β-Thalassemia intermedia	Increased	102, 103
Hemoglobin E/β-thalassemia	Increased	104
G6PD deficiency	Not reported
Hereditary elliptocytosis	Not reported
Hereditary ovalocytosis	Not reported
Hereditary spherocytosis	Increased	105
Idiopathic autoimmune	Reported	106, 107
Microangiopathic	Reported	108, 109
Paroxysmal nocturnal hemoglobinuria	Increased	110, 111
Malaria	Reported	112