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EdwardLui's avatar
EdwardLui
Copper Contributor
Jan 10, 2023

Excel: Adding staff absences on a rolling 365 days. Plus recording Bradford Factor scores

So I have to work out my staff's sickness days and calculate their Bradford Factor score. However, this is done on a rolling 365 days from the day I work this out.

 

I've tried using "A" for absence and I tried using "1" as well. Both seem to have their merits but not a complete picture.

 

I also need to work out the Bradford factor score so I have to work out, not just the number of days sick (in the last 365 days) but also the number of occurrences as well.

 

The table structure is column A date, column B staff 1, column C staff 2 and so on. I can work out counting the number of sick days is fine. But it's figuring out the <="&TODAY() and >"&TODAY()-365 formulas that works out the number of sick occurrences as well.

 

To add another spanner to the works, out of all those that have been sick, I need to separate those that are covid related and not add them to the Bradford Factor score.

 

In my mind for the report/separate sheet, I'll have e.g. from today:

 

- the number of absences a staff has taken for a rolling 365 days

- out of those, how many days is covid

- how many occurrences overall

- work out the Bradford factor score which is the occurrences x2 x number of actual days off (minus covid related)

 

All help is appreciated.

6 Replies

  • mtarler's avatar
    mtarler
    Silver Contributor
    there is a lot here and I'm unclear if you need help with a formula or how to structure the data. For the formula it would appear something like =COUNTIF or COUNTIFA should work. BTW if you want 12 months instead of 365 days you can use EDATE(TODAY(), -12)
    As for structure that is more intriguing because it sounds like you need a lot of 'continuous' data or do you just need everything relative to 'Today'. If it is only relative to 'Today' that is much easier as you can either insert a few lines under the header or in a new table copy the original header (i.e. all the staff) and then have rows for each of those calculations based on today.
    Can you provide a sample sheet (NO personal/private/confidential info, i.e. no real names please)
    If you can attach it here upload it to OneDrive or SharePoint or the like and share a link or PM it to me and I can post it here.
    • EdwardLui's avatar
      EdwardLui
      Copper Contributor
      I should note the calculations are based from today rolling back 365 days worth of absences.
      • mtarler's avatar
        mtarler
        Silver Contributor

        EdwardLui So you say 

        The part I'm stuck on now is working out the number of occurrences for a typical Mon-Fri work day period. I've used a VBA script but it doesn't count for bank holidays so it's taking that as extra occurrence.

        So are you trying to know the # weeks or maybe the # of Workdays in that time period to get an average?  something like NETWORKDAYS() ?  But if you are looking back at 365 days aren't the # of bank holidays the same every year (i.e. hoidays on Sat/Sun get moved to Fri/Mon)?

    • EdwardLui's avatar
      EdwardLui
      Copper Contributor
      I've been inserting into column A the rows of each date starting from 01/01/2022 to current. Column B onwards is just each staff. Let's say there's 10. If they are off I've been marking the corresponding date/staff cell as 'A' and if its covid related it's 'C'. I've managed to figure out most of it by using the following formula bearing in mind the dates/absence is in one sheet and the reporting is in another sheet but same workbook.

      =COUNTIFS('Staff Absence'!$A:$A,"<="&TODAY(),'Staff Absence'!$A:$A,">"&TODAY()-365,'Staff Absence'!B:B,"A")

      And changed the letter to C for covid related.

      The part I'm stuck on now is working out the number of occurrences for a typical Mon-Fri work day period. I've used a VBA script but it doesn't count for bank holidays so it's taking that as extra occurrence.

      It's equally difficult trying to do the same for part-time staff of 3 days. As when off for e.g. 4 weeks, it's showing as 4 different occurrences.

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