Specifically, three statistical tests were applied to the data: (a) a shift in the data demonstrated by eight or more consecutive data points above or below the mean centreline on the control chart, (b) a statistical trend in the data which is defined as six consecutive data points constantly increasing or decreasing, not counting values that are repeated in the sequence, and (c) a data point that exceeds the upper or lower control limits on the control chart (i.e. a data point that exceeds 3 sigma).
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Impact of an ABCDE team triage process combined with public guidance on the division of work in an emergency department.
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