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Table 1 Baseline characteristics

From: Designing pulmonary arterial hypertension trials for detecting change in right ventricular function using cardiovascular magnetic resonance: what is the appropriate sample size?

Characteristic (N=19)
Age (years): average ±SD (range) % Female Body surface area(m2): average ±SD 52±11 (28-67) 95% 1.8±0.2
WHO functional class  
I (%) II (%) III (%) Unknown (%) 32% 37% 26% 5%
Past medical history  
None Hypothyroidism Atrial fibrillation Other (hypertension, stroke, asthma) 10 (53%) 6 (32%) 1 (5%) 5 (26%)
Etiology of pulmonary hypertension  
Idiopathic Congenital Connective tissue disease/scleroderma Other (HIV, anorexigen use) 7 (37%) 4 (21%) 3 (16%) 5 (26%)
Therapy for pulmonary hypertension  
No therapy Single-therapy Multi-therapy (2 or more agents) 2 (11%) 6 (32%) 11 (58%)
Baseline right ventricular size and function measurements (means)  
RVEF (%) RVEDVI (ml/m2) RVESVI (ml/m2) 35±12 136±41 91±38
  1. SD = standard deviation; WHO, World Health Organization; RVEF, right ventricular ejection fraction; RVEDVI, right ventricular end-diastolic volume index; RVESVI, right ventricular end-systolic volume index