How to stratify data

From our free online course, “Practical Improvement Science in Health Care: A Roadmap for Getting Results”:
https://www.edx.org/course/ph556x-pra...

Stratification allows you to look at the population as various subgroups. By stratifying your data, you may be able to identify opportunities for improvement that aren't obvious from the data as a whole. Use this tool when you want to compare different subgroups, such as a process completed at three clinics in different geographical locations.

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