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Anonymous
Not applicable

calculated columns: Lost_date and reactivated_date

‎01-07-2019 02:53 PM
Hi, I wish to get help on a problem that I am trying to solve. I have a list of patients and their visit dates to a clinic. I want to create a column two columns: 1) Lost_date 2) reactivated date Lost Date: A patient becomes lost/inactive if he has not visited the clinic for more than 18 months since his/her last visit Reactivated-date: if a patient comes back to the clinic after being inactive for more than 18 months, then the new visit date is considered as reactivated_date Eg: Pat_Id: Visit_Date 2 5/6/2016 2 7/6/2016 ----- the patient becomes inactive on 1/6/2018 (the patient has not visited for 18 months) 2 5/8/2018 ----- the patient become reactivated on 5/8/2018 Any help would be great
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v-shex-msft
Community Support
Community Support
In response to Anonymous

‎01-18-2019 01:45 AM

Hi @Anonymous,

 

I modify calculated column formulas based on your expected result and sample data, please try to use it if it works:

Lost Date =
VAR prevDate =
    CALCULATE (
        MAX ( Lost[Visit_Date] ),
        FILTER (
            ALL ( Lost ),
            [patid] = EARLIER ( [patid] )
                && [Visit_Date] < EARLIER ( Lost[Visit_Date] )
        )
    )
RETURN
    IF (
        DATEDIFF ( prevDate, [Visit_Date], MONTH ) >= 18,
        DATE ( YEAR ( prevDate ), MONTH ( prevDate ) + 18, DAY ( prevDate ) )
    )


Reactive Date =
VAR nextDate =
    CALCULATE (
        MIN ( Lost[Visit_Date] ),
        FILTER (
            ALL ( Lost ),
            [patid] = EARLIER ( Lost[patid] )
                && [Visit_Date] >= EARLIER ( [Lost Date] )
        )
    )
RETURN
    IF ( [Lost Date] <> BLANK () && nextDate <> BLANK (), nextDate )

4.png


Regards,
Xiaoxin Sheng

Community Support Team _ Xiaoxin
If this post helps, please consider accept as solution to help other members find it more quickly.

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