Red Cell Distribution Width and Platelet Count as Biomarkers of Pulmonary Arterial Hypertension in Patients with Connective Tissue Disorders

Table 3

Correlation between functional parameters and RDW and platelet count in patients with PAH.

Variable	RDW	Platelet count
6MWD	;	;
BNP	;	;
Creatinine clearance	;	;
Hb	;	;
sPAP	;	;
LVEF	;	;
RAA	;	;
RVD	;	;
DLCO	;	;
FEV1	;	;
FEV1/FVC	;	;

RDW: red cell distribution width; 6MWD: 6-minute walking distance; BNP: brain natriuretic peptide; Hb: haemoglobin; sPAP: systolic pulmonary artery pressure; LVEF: left ventricular ejection fraction; RAA: right atrium area; RVD: right ventricle diameter; DLCO: diffusion lung capacity for carbon monoxide; FEV1: forced expiratory volume in the 1st second; FVC: forced vital capacity.