Clinical and Instrumental Characteristics of Newly Diagnosed Patients with Various Forms of Pulmonary Hypertension according to the Russian National Registry

Table 6

Assessment of functional status in patients with PH at the time of diagnosis.

Parameters	Patient groups
	PAH	IPAH	PAH-CTD	PAH-CHD	PoPH	CTEPH
6MWD, meters
Borg dyspnea index scale, points
SpО2 before 6MWD, (%)	95.0 [91.2; 98.0]	96.5 [94.0; 98.0]^4	95.3 [93.0; 97.1]	92.3 [89.7; 95.0]^2.3.5	96.3 [94.8; 98.0]^4	94.0 [90.0; 97.0]
FC ()
WHO FC I/II/III/IV	10%/19%/65%/6%	7%/32%/48%/13%	8%/24%/58%/10%	9%/25%/47%/19%	22%/34%/44%/0%	3%/20%/59%/18%

Note: : at the time of diagnosis; 1: ; 2: ; 3: ; 4: vs. ; 5: vs. .