Table 2.

Physicians’ classification and management of patients after fluid challenge.

	NFC (n = 55)	PFC (n = 12)	P value
WHO PH classification*
Group 1, PAH	23 (42)	1 (8)	0.03
Group 2, PH-LHD	27 (49)	12 (100)	<0.001
Group 3, PH-Lung disease	24 (44)	4 (33)	0.52
Group 4, CTEPH	3 (5)	2 (17)	0.19
Group 5, Miscellaneous	3 (5)	1 (8)	0.75
Initiation of PAH therapy	28 (51)	0 (0)	<0.001
Discharged from PH clinic	15 (27)	8 (67)	0.02

Values are presented as n (%).

^*Some patients were classified as multifactorial PH with contributions from more than one WHO group

CTEPH, chronic thromboembolic PH; LHD, left heart disease; PAH, pulmonary arterial hypertension.