To the Editor: In their study on quality improvement
organizations (QIOs), Drs Snyder and Anderson1 conclude
that improvement in hospital quality indicators is not attributable to QIO
interventions because improvement at “intervention” hospitals
was significantly greater than improvement at nonintervention hospitals on
only 1 of 15 quality measures. However, 4 problems in the study design made
finding significant differences unlikely, even if QIOs had been responsible
for a large part of improvement over the past 7 years.
Quality Improvement Organizations and Hospital Care. JAMA. 2005;294(16):2028–2030. doi:10.1001/jama.294.16.2028-a
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