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Table 9 Comparison with previous reports regarding the percentage of patients with “borderline pre-capillary PH” or “borderline PH”

From: Characteristics of patients meeting the new definition of pre-capillary pulmonary hypertension (Nice 2018) in a single Japanese pulmonary hypertension center

  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%
  1. CTD, connective tissue disease; CAD, coronary artery disease; COPD, chronic obstructive disease; ILD, interstitial lung disease; IPAH, idiopathic pulmonary hypertension; PH, pulmonary hypertension