Date:         Fri, 18 Jan 2002 12:42:41 -0000
Reply-To:     Roland <roland.rashleigh-berry@VIRGIN.NET>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Roland <roland.rashleigh-berry@VIRGIN.NET>
Organization: Virgin Net Usenet Service
Subject:      Re: age calculations etc

Just subtract one from the other since a date in SAS is just an integer.

days=refer-birth;



"David Yeates" <david.yeates@uhce.ox.ac.uk> wrote in message
news:a2944u$q4g$1@news.ox.ac.uk...
> Hi All,
>
> I have been puzzling over the following...
>
> Given the birth-date and another reference date refer-date I can calculate
> the exact age using that old favourite macro
>
> %macro age(birth, refer);
>    int((intck('month',&birth,&refer)-(day(&birth)>day(&refer)))/12);
> %mend age;
>
> where &birth and &refer are the two dates.  Now what I need having
> calculated the age is exactly how many days are there from the birthday in
> the year corresponding to refer-date to refer-date itself.
>
> Any ideas very welcome.
>
> Kind regards
> David
> UHCE, Oxford University
>
>