Eight hundred fifty-four patients with baseline mean eGFR @ @ mL/min/@ @ m ( @ ) were studied , including @ ( @ % ) with eGFR @ mL/min/@ @ m ( @ ) ( CKD stage @ or @ ) , @ ( @ % ) with eGFR @ to @ mL/min/@ @ m ( @ ) ( CKD stage @ ) , and @ ( @ % ) with eGFR < @ mL/min/@ @ m ( @ ) ( CKD stage @ or @ ) .