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If you had reduced the mean door-to-doctor time in your ED from 64.3 minutes to 39.8 minutes (a 38.1% improvement) in seven months, you’d probably be pretty happy. But for Maureen Kelly-Nichols, RN, MSA, the ED nurse director at Providence Hospital in Southfield, MI, that was not the key measure of success in her recent Six Sigma project.

Six Sigma success story: Reducing variations is key