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Figure 1 | BMC Pediatrics

Figure 1

From: The swiss neonatal quality cycle, a monitor for clinical performance and tool for quality improvement

Figure 1

Benchmarking diagram. Plsek’s p-chart for mechanical ventilation for unit 8 versus the other level III NICUs in Switzerland (CH) displaying historical annual percentages for 2000–2012. The mean (Avg) percentage over the entire period is 44.2% for the unit and 50.2% for CH. The 1st and 2nd standard deviation (SD) of the unit are dotted lines (SD were calculated using the formula SD = SQRT {[mean percentage x (1 - mean percentage)] / [sample size]}) whereas the 3rd SD are dashed lines. The unit’s upper and lower control limits (UCL = 58% and LCL = 30.3%, respectively) are set by convention at ± 3 SD beyond the mean.

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BMC Pediatrics

ISSN: 1471-2431

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