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Anonymous
Not applicable

Calculate percentage per category in 'survival curve'

Hello

 

I have some data on patients and how many days they stayed in a hospital.

If a patient has been in the hospital for 3 days (starting with day zero) like patient P110001121288 then I have three rows. One row (observation) for each day in the hospital - all starting with zero and incrementing by 1.

Data look like this:

PatientId DaysInHospital AgeGroups
P110001121288 0 0-29 years
P110001121288 1 0-29 years
P110001121288 2 0-29 years
P110006104217 0 60+ years
P110006104217 1 60+ years
P110006104217 2 60+ years
P110006104217 3 60+ years
P110006319740 0 30-59 years
P110006319740 1 30-59 years
P110006319740 2 30-59 years
P110006319740 3 30-59 years
P110006319740 4 30-59 years
P110006319740 5 30-59 years
P110006593041 0 30-59 years
P110006593041 1 30-59 years
P110006593041 2 30-59 years
P110006593041 3 30-59 years
P110006670979 0 30-59 years
P110006670979 1 30-59 years
P110006670979 2 30-59 years
P110006670979 3 30-59 years
P110006670979 4 30-59 years
P110008686937 0 0-29 years
P110008751176 0 0-29 years
P110008751176 1 0-29 years
P110008751176 2 0-29 years
P110008751176 3 0-29 years
P110008751176 4 0-29 years
P110008751176 5 0-29 years
P110008751176 6 0-29 years
P110008751176 7 0-29 years
P110008751176 8 0-29 years

 

My graph looks like this - however I want to show percentages per group instead of totals, so I need the graph to start with 100% for day zero for each agegroup. And then I need to calculate a measure for the percentages for the following days, which means I need to use the numbers from day zero as denominator. E.g 30-59 years denominator = 669 and the percentage for day 1 should be 444/669 = 66,4% and so forth for each group.

How to calculate the DAX measure for these percentages?

Thank you very much in advance!

Number of patients on days in hospital by agegroups.png

1 ACCEPTED SOLUTION
mahoneypat
Employee
Employee

I believe this measure will do what you are looking for.

 

Pct Still in Hospital = var dayzerocount = CALCULATE(DISTINCTCOUNT(Data[PatientID]), Data[Days in Hospital] = 0)
var currentcontextcount = DISTINCTCOUNT(Data[PatientID])
return DIVIDE(currentcontextcount, dayzerocount)
 
patientsplot.png




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@mahoneypa HoosierBI on YouTube


View solution in original post

1 REPLY 1
mahoneypat
Employee
Employee

I believe this measure will do what you are looking for.

 

Pct Still in Hospital = var dayzerocount = CALCULATE(DISTINCTCOUNT(Data[PatientID]), Data[Days in Hospital] = 0)
var currentcontextcount = DISTINCTCOUNT(Data[PatientID])
return DIVIDE(currentcontextcount, dayzerocount)
 
patientsplot.png




Did I answer your question? Mark my post as a solution! Kudos are also appreciated!

To learn more about Power BI, follow me on Twitter or subscribe on YouTube.


@mahoneypa HoosierBI on YouTube


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