Fig. 1From: Cardiopulmonary exercise testing and pulmonary function testing for predicting the severity of CTEPHPredictors of severe CTEPH on multivariable analysis of CPET and PFT parameters. Range for “Severe”: PAP (mm Hg) ≥ 45. Results are expressed as odds ratio (OR) with 95% confidence interval (95% CI). VE = minute ventilation; VO2 = oxygen uptakeBack to article page