NPPB and hydrops fetalis: 560 HF patientsAge: 85 yearsLowest tertile NT-proBNP levelsN = 186Gender: 62 (33%) males/124 (67%) femalesMedium tertile NT-proBNP levelsN = 187Gender: 54 (29%) males/133 (71%) femalesHighest tertile NT-proBNP levelsN = 187Gender: 71 (38%) males/116 (62%) females