Table 3 Baseline characteristics of the study participants

Patients (n)

53 (40 F, 10 M)

53 (35 F, 18 M)

Mean age (years)

48.5

50.8

Pulmonary hypertension diagnosis (n)

 PAH

50

46

  Ideopathic PAH

12

14

  Hereditary PAH

0

1

  PAH associated with congenital heart disease

5

4

  PAH associated with connective tissue disease

14

14

  PAH associated with portal hypertension

1

1

  Drug induced PAH

0

1

  PAH subtype not specified

16

11

 Chronic thromboembolic pulmonary hypertension

3

7

WHO-FC (n)

 Class I

1

0

 Class II

12

13

 Class III

24

28

 Class IV

2

1

 Not reported (Fox et al.)

11

11

Mean pulmonary artery pressure (mmHg)*

49

47.1

6 minute walking test distance (m)

401

408