1. Control chart of the quarterly number of deliveries between infant sleep-related deaths from 2005 to June 2016.
Control chart of the quarterly number of deliveries between infant sleep-related deaths from 2005 to June The centerline is the average number of deliveries between deaths in the iterative period and after the full intervention. The arrow delineates the end of the iterative period when the full intervention began. UCL, upper control limit.
Scott D. Krugman, and Carolyn J. Cumpsty-Fowler Hospital Pediatrics 2018;8:
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