Table 1.
Baseline characteristics of included articles.
| Author | Year of publication | Research type | Study population | Age years (mean/median) | Sample size | Male | Female | Number of male patients with CTEPH | Number of female patients with CTEPH | Follow-up time (years) |
|---|---|---|---|---|---|---|---|---|---|---|
| Vittorio Pengo[6] | 2004 | PC | Patients with consecutive acute PE | 61.2 | 305 | 125 | 180 | 9 | 9 | 7.9 |
| Frederikus A. Klok[7] | 2010 | RC | Patients with consecutive acute PE | 56.0 | 866 | 410 | 456 | 1 | 3 | 2.8 |
| David Martί[8] | 2010 | PC | Patients with consecutive acute PE | 63.4 | 110 | 48 | 62 | 6 | 4 | 2.0 |
| Laurent Guérin[9] | 2014 | PC | Patients with acute PE | 61.0 | 23 | 146 | 63 | 83 | 2 | 5 |
| F.A. Klok[10] | 2014 | PC | Patients with acute PE | 44.5 | 134 | 75 | 59 | 4 | 2 | 0.6 |
| Suqiao Yang[11] | 2015 | PC | Patients with acute PE | 61.6 | 614 | 298 | 316 | 3 | 7 | 3.3 |
| Chih-Hsin Hsu[12] | 2019 | RC | Patients with acute PE | 63.8 | 200 | 83 | 117 | 2 | 6 | 3.0 |
| Farid Rashidi[13] | 2020 | PC | Patients with acute PE | 58.3 | 475 | 280 | 195 | 8 | 14 | 1.0 |
| Gudula J. A. M. Boon[14] | 2021 | PC | Patients with acute PE | 56.0 | 314 | 167 | 174 | 7 | 2 | 2.0 |
| Carlos Aranda[15] | 2020 | RC | Patients with acute PE | 51.8 | 241 | 121 | 120 | 7 | 7 | 2.0 |
| C. Martinez[16] | 2018 | RC | Patients with acute PE | 61.1 | 2356 | 1137 | 1219 | 130 | 153 | 3.5 |
CTEPH = chronic thromboembolic pulmonary hypertension, PC = prospective cohort study, PE = pulmonary embolism, RC = retrospective cohort study.