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Published byStanley Hingle Modified over 2 years ago

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Web Portal Graphs Benefits of using 100% as scale for percentage graphs for diabetes, CHD and COPD

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Why do we graph results? To improve patient outcomes To communicate improvement To communicate lack of improvement To focus improvement work

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Percentage scale varies from 30% to 80% - all measures look equally good

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Drawbacks to using a varying percentage scale Does not accurately represent improvement At a glance the measures look to be improving equally Interpreting the graphs takes more time and thought

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Percentage Scale = 100% Rate of improvement is clear

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Benefits of using 100% scale Graphs clearly depict rate of improvement Relative improvement between each measure is clear Improvement work can be focussed on specific areas No distortion of graphs

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BP graph is particularly distorted by scale

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