Many thanks Jamie. It works now. I will never have found out my mistake without your support. Thanks again. Sophie.

--Pièce jointe du message transmise-- From: epidata-list@lists.umanitoba.ca To: epidata-list@lists.umanitoba.ca Date: Sat, 8 Oct 2011 16:41:29 +0200 Subject: [EpiData-list] How to calculate age

Hello everybody, I am trying to write a syntax in .chk file to automatically calculate age during the data entry from the today's date and the DoB.The syntax is : " ddn MUSTENTER END

age NOENTER BEFORE ENTRY let age=(round(int((date-ddn)/(365.25)))) END END" The variables are coded in the .qes file as follows: {DATE} automatique <Today-dmy>{DDN} DATE DE NAISSANCE (DATE OF BIRTH) <dd/mm/yyyy>{AGE} automatique ### What's wrong with my syntax? Sincerely hope you can help me. Regards, Sophie PilleronPhD student.

--Pièce jointe du message transmise-- From: epidata-list@lists.umanitoba.ca To: epidata-list@lists.umanitoba.ca Date: Sat, 8 Oct 2011 12:42:47 -0400 Subject: Re: [EpiData-list] How to calculate age

You cannot have a field named DATE because that is the name of a function. EpiData doesn't complain when you do this, but you cannot use any function names as field names.

Jamie

On 2011-10-08, at 10:41 AM, epidata-list@lists.umanitoba.ca wrote:

  let age=(round(int((date-ddn)/(365.25))))