Table 9 Comparison with previous reports regarding the percentage of patients with “borderline pre-capillary PH” or “borderline PH”
Country | n | % of borderline pre-capillary PH | % of borderline PH | of total PH patients | Associated conditions | ||
|---|---|---|---|---|---|---|---|
of total patients (including Non-PH) | of total pre-capillary PH patients | of total patients (including Non-PH) | Total | ||||
Assad et. al.(2017)[5] | U.S.A | 4343 | – | – | 18.0% | 22.6% | CTD:0.9% CAD:71.5% COPD + ILD:18.7% |
Douschan et.al.(2018)[6] | Austria | 547 | – | – | 11.7% | 18.1% | ※Conventional group only Group1:25.5% Group2:20.3% Group3:26.6% Group4:18.3% Group5:9.3% |
Gustavo et.al. (2013)[7] | the U.S | 1491 | – | – | 4.2% | 4.5% | ※Borderline + borerline precapillary only None:30.4% CTD:16.2% Heart disease:16.2% Respiratory disease:29.7 |
Umit et.al. (2019)[9] | Turkey | 58 | 12.1% | 14.0% | Unknown | Unknown | IPAH suspected:43.1% Congenital PH suspected:34.5% Systemic sclerosis: 3.4% Left heart disease and valvular disease:6.9% |
Our study | Japan | 683 | 3.2% | 4.3% | 7.3% | 8.6% | Group1:22.8% Group2:3.1% Group3:14.6% Group4:55.6% Group5:1.2% |