Age in Year Month Day Format

[#1]

Hi,

Please give me some ideas about how to calculate Age for Patient in the hospital by using Visit Hospital Date - Date of Birth

and the result should be Year, Number of Month , Day

such as

Date of Birth 01/01/2011

Visit Hospital Date 11/03/2012

Age = 1 Year 2 Months 11 Days

Thank you in advance for sharing....

[swuehl]

ainiko,

this is a little complex using QV functions, but I think you can do it like this:

SET DateFormat='DD/MM/YYYY';

INPUT:

LOAD *

, if(day(VisitDay) >= day(DoB),

  mod(MonthIDVisitDay-MonthIDDoB,12),

  mod(MonthIDVisitDay-MonthIDDoB,12)-1) as AgeMonths

, if(day(VisitDay) >= day(DoB),

  day(VisitDay)-day(DoB),

  VisitDay-addmonths(DoB,12*AgeYears+mod(MonthIDVisitDay-MonthIDDoB,12)-1))+1 as AgeDays

;

LOAD *

, age(VisitDay,DoB) as AgeYears

, Year(DoB)*12+Month(DoB) as MonthIDDoB

, Year(VisitDay)*12+Month(VisitDay) as MonthIDVisitDay

INLINE [

DoB, VisitDay

01/01/2011, 11/03/2012

01/01/2010, 29/02/2012

01/03/2010, 29/02/2012

];

I just used a preceding load so I can use fields I calculated in the INLINE table load, this makes it somewhat easier to read.

Maybe there is a VBScript function I don't know of you can call as Macro code from the script, but above should work using only QV functions.

The created Age fields can then easily be concatenated to a string like

=AgeYears &' Years '&AgeMonths&' Months '&AgeDays&' Days'

in the frontend or also as a new field, to get a string like you requested above.

Hope this helps,

Stefan

edit: corrected bugs in AgeMonths and AgeDays

edit2: Corrected another bug when start and end date fall into the same calendar month.

[#3]

Thank you very much. It is helpful.