Performance measurements in diabetes care: the complex task of selecting quality indicators

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PURPOSE: /st> To review the literature on the content and development of the sets of quality indicators used in studies on the quality of diabetes care in primary care settings. DATA SOURCES: /st> The MEDLINE (Ovid), PubMed, PsychINFO, Embase and CINAHL databases were searched for relevant articles published up to January 2011. STUDY SELECTION: and data extraction We included studies on the quality of adult diabetes care, using quality indicators. We excluded studies focusing on the hospital setting, patient subgroups, specific components of diabetes care and specific outcomes. In total, 102 studies (including 102 sets and 1494 indicators) were analyzed by two independent reviewers, using the criteria of the National Quality Measures Clearinghouse and international guidelines to document the content and selection of the identified indicators. RESULTS OF DATA SYNTHESIS: /st> Sets varied greatly in number, content and definitions of quality indicators. Most of the indicators concerned HbA1C, lipids, blood pressure, eye and foot examination and urinalysis. Few sets included indicators on lifestyle counseling, patient experiences, healthcare structure or access to healthcare providers. Seventy sets did not specify explicit selection criteria, and 19 of these did not report the sources of the indicators. CONCLUSIONS: /st> Sets of quality indicators are diverse in number, content and definitions. This diversity reflects a lack of uniformity in the concept of diabetes care quality and hinders the interpretation of and comparison between quality assessments. METHOD: logy regarding defining constructs such as the quality of diabetes care and indicator selection procedures is available and should be used more rigorously.