NPPB and atrial fibrillation: Thus, in patients with CP, death was associated with the presence of AF, lowerhemoglobin levels (< 13 g/dL), higher CRP (≥ 7.4 mg/dL) and BNP(≥ 157 pg/mL) levels, and pulmonary artery systolic pressure (PASP) >55 mm Hg.