ALB and nephrotic syndrome: In our study, worse prognosis was associated with the presence of nephrotic syndrome (defined as the presence of 24-hour proteinuria equal to or > 3.5 g/24h with albumin < 3 g/dL and edema), elevated 24-hour proteinuria (defined as the presence of 24-hour proteinuria equal to or > 0.3 g/24h) and low initial serum albumin.