Kaplan-Meier survival (renal event-free) curves during follow-up by tertiles of plasma copeptin. Renal events were defined as the doubling of the serum creatinine levels or ESRD during follow-up. A: Subjects with microalbuminuria or macroalbuminuria at baseline (n = 3,101). B: Subjects with macroalbuminuria at baseline (n = 729).