Patients with T@DM at risk for cardiovascular events were stratified as having normal or mildly impaired renal function ( estimated glomerular filtration rate -LSB- eGFR -RSB- > @ mL/min/@ @ m ( @ ) ; n = @,@ ) , moderate renal impairment ( eGFR @-@ mL/min/@ @ m ( @ ) ; n = @,@ ) , or severe renal impairment ( eGFR < @ mL/min/@ @ m ( @ ) ; n = @ ) and randomized to receive saxagliptin or placebo .