TABLE 2.

Pulmonary hypertension epidemiological data

Registry	[Ref.]		Incidence per 106 population	Prevalence per 106 population
IPPHS	[17]	IPAH	1.7
French	[8]	IPAH	1.0	5.9
French	[8]	IPAH	2.4	15 (4–29#)
Scottish	[25]	IPAH	2.6	9
Scottish	[25]	IPAH	7.6	26 (52¶)
REVEAL	[9]	IPAH	0.9
REVEAL	[9]	IPAH	2.0	10.6
UK	[10]	IPAH	1.1	6.6
Spanish	[11]	IPAH	1.2	5.6
Spanish	[11]	PAH	3.7	16
Swedish	[5]	IPAH	5	25

Data are presented as annual cases per million population for incidence and prevalence. IPAH: idiopathic pulmonary arterial hypertension; PAH: pulmonary arterial hypertension; REVEAL: Registry to Evaluate Early and Long-Term Pulmonary Arterial Hypertension. ^#: regional differences; ^¶: Scottish hospitalisation registry.