ACE and chronic kidney disease: A study of 11,774 patients with CKD (eGFR, 15-60 mL/min/1.3 m2) with an averageage of 73 years from a multispecialty primary care group practice in Massachusetts found low rates of adherence to many CKD practice guidelines, including annual urinary protein quantification (30%), receipt of appropriate ACE-inhibitor/ARB medications (75%), and documentation of CKD on their problem list (24%).38