Table 1 Baseline clinical and demographical data
|  | Total (n = 814) | Arrhythmia YES (n = 225) | Arrhythmia NO (n = 589) | p |
|---|---|---|---|---|
Age (years) | 59 ± 14 | 65 ± 11 | 57 ± 15 | <  0.001 |
Males | 378 (46%) | 113 (50%) | 265 (45%) | NS |
Group 1 PH: PAH | 334 (41%) | 87 (39%) | 247 (41%) | NS |
Group 3 PH: Lung diseases | 140 (17%) | 23 (10%) | 117 (20%) | 0.0007 |
Group 4 PH: CTEPH | 303 (37%) | 106 (47%) | 197 (33%) | 0.0002 |
Group 5 PH: Other types of PH | 37 (5%) | 9 (4%) | 28 (5%) | NS |
Arterial hypertension | 470 (58%) | 160 (71%) | 310 (53%) | <  0.0001 |
Diabetes mellitus | 204 (25%) | 74 (33%) | 130 (22%) | 0.03 |
Coronary artery disease | 168 (21%) | 49 (22%) | 119 (20%) | NS |
Chronic obstructive pulmonary disease / obstructive sleep apnea | 195 (23%) / 49 (6%) | 62 (28%) / 10 (4%) | 133 (22%) / 39 (7%) | NS |
Specific therapy | 416 (51%) | 109 (48%) | 307 (52%) | <  0.01 |
PEA in CTEPH | 173 (21%) | 68 (30%) | 105 (18%) | 0.0002 |
NYHA | 2.69 ± 0.79 | 2.66 ± 0.81 | 2.71 ± 0.78 | NS |
6-min walking test (m) | 341 ± 129 | 329 ± 127 | 346 ± 129 | NS |
Mortality | 379 | 140 (49%) | 320 (48%) | NS |