The 20th century has seen dramatic improvements in quality, efficiency, and productivity of the industrial, manufacturing, and selected service sectors through the redesign of the management and production processes. Moreover, the health care sector, plagued by overuse, underuse, and misuse of care remained a laggard in adopting needed changes to improve quality, effectiveness, and delivery. The change agent may have been the 2001 report by the Institute of Medicine, which shocked the collective conscience of the industry with the revelation of the alarming statistics of death owing to preventable medical errors. A variety of methodologies have since been adopted by the health care sector with mixed successes. However, scant attention has been given to the historical significance of Florence Nightingale pioneering quality management in nursing care over a century ago with her use of statistics to influence health care decisions, to enhance quality care delivery, and to improve facility design. This article addresses the abstract concept of quality, its illusive nature, and multidimensionality from different perspectives in health utilization and delivery. It presents a survey of the various quality management theories and models and their variance, which have attracted the attention of the health sectors as potential saviors of the beleaguered health industry afflicted by the quality crisis.
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