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Clinical science
CUSUM: a dynamic tool for monitoring competency in cataract surgery performance
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- Published on: 25 May 2010
- Published on: 25 May 2010CUSUM for monitoring competency: Computer software is useful for bootstrapping and real time CUSUM plotting.Show More
We congratulate Salowi and colleagues on their study of the use of CUSUM to monitor competency in cataract extraction (1). However there are two modifications that could make their system more responsive and reliable.
Firstly the authors use a CUSUM chart that fluctuates on only one side of the zero line. Traditionally CUSUM charts fluctuate on both sides of the zero line (2,3). The consultant in their Figure 1...
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