In accordance with previous studies on IgA nephropathy, proteinuria (HR, 1.89; p < 0.001) [14], age (HR, 1.060; p = 0.023) [15], serum albumin (HR, 0.31; p = 0.002) [16] and serum cholesterol (HR, 1.02; p = 0.007) [17] were also significantly associated with deterioration of renal function. Here, ALB is linked to IgA glomerulonephritis.