Plasma fibroblast activation protein is decreased in acute heart failure despite cardiac tissue upregulation

Table 2 Relationships between the plasma FAP levels of acute HF and the clinical variables which showed significant differences between acute and chronic HF

Acute HF	Clinical variables	R	P value
Plasma FAP levels	Age (years)	− 0.141	0.341
	BMI (kg/m²)	0.143	0.524
	Hemoglobin (mg/dL)	0.016	0.916
	Hematocrit (%)	0.076	0.610
	LVEF (%)	− 0.143	0.400
	LVESD (mm)	− 0.079	0.666
	LVEDD (mm)	− 0.011	0.951

BMI body mass index, HF heart failure, LVEF left ventricular ejection fraction, LVESD left ventricular end-systolic diameter, LVEDD left ventricular end-diastolic diameter

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