2 Proportions

This example applies to the Healthcare Module. For more information, go to www.minitab.com/healthcare-module.

Example

In this worksheet, the Readmissions Before and Readmissions After columns contain the number of readmissions before and after a process improvement. The Number Before and Number After columns contain the total number of patients before and after the process improvement. You can enter these observations directly in the dialog box instead of storing them in the Minitab worksheet.

C1	C2	C3	C4
`Readmissions Before`	`Number Before`	`Readmissions After`	`Number After`
53	645	17	326

How-to

From the Healthcare KPIs: Decrease 30-Day Readmissions dialog box, select 2 Proportions, then click OK.
From the drop-down list, select Summarized data.
In Number of events, enter the number of readmissions before and after the process improvement.
In Number of trials, enter the total number of patients before and after the process improvement.
Click Options. In Alternative hypothesis, choose Difference > hypothesized difference.
Click OK.

Tip

For more information about this analysis, click Help in the main dialog box.