Secondary outcome: a renal composite endpoint, defined as; reduction in estimated GFR of more than 50% (for individuals with a baseline estimated GFR less than 60 ml/min/1.73m*m); reduction in estimated GFR of more than 30 ml/min/1.73m*m (for individuals with a baseline estimated GFR greater than or equal to 60 ml/min/1.73m*m) or progression to end-stage renal disease (defined as need for dialysis, renal transplant or an eGFR of less than 15 ml/min/1.73m*m).