Table 1.

Baseline demographic and clinical characteristics of the patients.

Variable	All Patients	IPAH	CHD–PAH	Others	p-Value
	(n = 89)	(n = 20)	(n = 62)	(n = 7)
Age—years	34.53 ± 8.97	36.25 ± 9.36	33.47 ± 8.58	36.29 ± 3.04	0.075
BMI—kg/m2	20.29 ± 3.35	22.30 ± 2.76	19.46 ± 3.30	21.37 ± 3.08	0.003
Smoking—yes/no	14 (15.7%)/75 (84.3%)	3 (15.0%)/17 (85.0%)	9 (14.5%)/53 (85.5%)	2 (28.6%)/5 (71.4)	0.623
Gender—female/male	74 (83.1%)/15 (16.9%)	16 (80.0%)/4 (20.0%)	52 (83.9%)/10 (16.1%)	6 (85.7%)/1 (14.3%)	0.909
Marital status					0.293
Married	58 (65.2%)	17 (85.0%)	35 (56.5%)	6 (85.7%)
Single	25 (28.1%)	2 (10.0%)	22 (35.5%)	1 (14.3%)
Divorce	6 (6.7%)	1 (5.0%)	5(8.0%)	0
Educational level					0.373
Primary school	7 (7.8%)	3 (15.0%)	3 (4.8%)	1 (14.3%)
Middle school	24 (27.0%)	4 (20.0%)	18 (29.0%)	2 (28.6%)
High school	24 (27.0%)	4 (20.0%)	20 (32.3%)	0
College or above	34 (38.2%)	9 (45.0%)	21 (33.9%)	4 (57.1%)
Course of disease (year)	5.73 ± 4.57	4.55 ± 3.85	5.95 ± 4.82	7.29 ± 4.82	0.112
WHO-FC					0.762
I	21 (23.6%)	3 (15.0%)	16 (25.8%)	2 (28.6%)
II	62 (69.7%)	15 (75.0%)	43 (69.4%)	4 (57.1%)
III	6 (6.7%)	2 (10.0%)	3 (4.8%)	1 (14.3%)
Right heart catheterization
PAP (mean)—mmHg	57.28 ± 21.67	49.50 ± 20.03	59.70 ± 22.19	53.83 ± 19.5	0.383
3wPAWP—mmHg	8.97 ± 3.15	8.67 ± 3.11	9.02 ± 3.24	9.17 ± 3.24	0.937
CI—L/min/m2	3.46 ± 1.09	3.25 ± 1.08	3.46 ± 1.08	3.84 ± 1.28	0.403
RAP—mmHg	5.03 ± 3.19	7.17 ± 5.02	4.51 ± 2.47	4.67 ± 1.86	0.201
Echocardiography
LVEF %	68.78 ± 5.74	69.10 ± 5.19	68.80 ± 5.90	67.71 ± 6.53	0.988
TAPSE mm	18.01 ± 3.84	19.84 ± 4.10	17.64 ± 3.51	16.03 ± 4.53	0.084
DASI total score	36.47 ± 13.58	33.09 ± 13.45	37.52 ± 13.39	36.84 ± 16.08	0.451
PeakVO2—mL/min/kg	13.70 ± 3.74	13.97 ± 2.26	13.71 ± 3.90	12.87 ± 7.74	0.890
Peak VO2 < 11 mL/min/kg	20 (22.4%)	4 (20.0%)	14 (22.5%)	2 (28.6%)	0.342
6MWD—meters	478.10 ± 100.80	516.45 ± 89.54	467.97 ± 103.16	467.97 ± 100.40	0.161