Table 2– Characteristics of precapillary, post-capillary and mixed phenotype groups
PrecapillaryPost-capillaryMixedp-value#
Subjects n9313476
End-expiratory PAWP mmHg12.8±4.016.0±3.114.0±3.4<0.0001
PAWPmrc mmHg9.4±3.212.5±2.211.0±2.7<0.0001
PVR dyn·s·cm−5379 (280–639)240 (178–309)320 (234–541)<0.0001
Left atrial diameter >40mm5.862.143.7<0.0001
  • Data are presented as mean±sd, median (interquartile range) or %, unless otherwise stated. PAWP: pulmonary artery wedge pressure; PAWPmrc: PAWP as mean across the respiratory cycle; PVR: pulmonary vascular resistance. #: comparisons between all three groups; for pairwise comparisons there was no difference in PVR between precapillary and mixed patients, for all other pairwise comparisons p<0.05; : results only for those with echocardiogram data (precapillary: n=52; post-capillary: n=124; mixed: n=71).