Evaluating The Accuracy Of Sampling Strategies For Estimation Of Compliance Rate For Ventilator-Associated Pneumonia Process Measures
INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY(2016)
摘要
BACKGROUND. Measuring processes of care performance rates is an invaluable tool for quality improvement; however, collecting daily process measure data is time-consuming and burdensome.OBJECTIVE. To evaluate the accuracy of sampling strategies to estimate monthly compliance rates with ventilator-associated pneumonia prevention measures.SETTING AND PARTICIPANTS. A total of 37 intensive care units affiliated with 29 hospitals participating in a 2-state 35-month ventilator associated pneumonia prevention collaborative. Analysis was limited to 325 unit-months with complete data entry rates.METHODS. We calculated unit-month level actual and sample monthly compliance rates for 6 ventilator-associated pneumonia prevention measures, using 4 sampling strategies: sample 1 day per month, sample 1 day per week, sample 7 consecutive days per month, and sample 7 consecutive days per month plus additional consecutive days as necessary to obtain at least 30 ventilator-days for that month whenever possible. We compared sample versus actual rates using paired t test and chi(2) test.RESULTS. Mean sampling accuracy ranged 84%-97% for 1 day per month, 91%-98% for 1 day per week, 92%-98% for 7 consecutive days per month, and 96%-99% for 7 consecutive days with at least 30 days per month if possible. The most accurate sampling strategy was to sample 7 consecutive days with at least 30 ventilator-days per month if possible. With this strategy, sample rates were within 10% of actual rates in 88%-99% of unit-months and within 5% of actual rates in 74%-97% of unit-months.CONCLUSION. Sampling process measures intermittently rather than continually can yield accurate estimates of process measure performance rates.
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关键词
compliance strategies,pneumonia,sampling strategies,ventilator-associated
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