Table 2.

History of acute and chronic symptoms and complications among patients with sickle cell disease.

Parameter		Frequency n (%)
Symptoms	Asymptomatic	15 (48.4%)
	Exertional dyspnea	9 (29%)
	Recurrent chest pain	3 (9.7%)
	Exertional dyspnea with palpitation	1 (3.2%)
SCD History of acute complications	Aplastic crisis	16 (51.6%)
	Painful crisis	26 (83.9%)
	Stroke	3 (9.7%)
	Sequestration crisis	6 (19.4%)
	Acute chest syndrome	17 (54.8%)
SCD Chronic complications	Gallstones	12 (38.7%)
	Chronic renal disease	2 (6.5%)
	Chronic leg ulcer	10 (32.3%)
	Retinal disease	3 (9.7%)
	Avascular necrosis	11 (35.5%)