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Re: st: generating age using dates


From   Neil Shephard <[email protected]>
To   [email protected]
Subject   Re: st: generating age using dates
Date   Fri, 17 Dec 2010 15:49:25 +0000

On Fri, Dec 17, 2010 at 3:26 PM, martine etienne <[email protected]> wrote:
> Hi Statlisters,
> I am trying to generate age using the following variables:
>
> "survey_date"=survey date
>
> "q1_dob2"=date of birth

What format are these stored as?

-des survey_date q1_dob2-

>
> I started with the following command:
> gen nage= survey_date- q1_dob2
> gen age= nage/365.4
> but I'm stuck at this point because it looks like the numbers are very similar
> to each other,

What does "very similar" mean?  If you could post the output of -des
nage age- would go some way to explaining that.

> ie..I have a sample of 287 and over 200 are 50 plus....

Why is that surprising?  What is the study design?  If it was to
survey people > ~45 then this wouldn't surprise me at all!

Neil


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