Hi Nick,
Thank your prompt reply. My apologies for not explaining well myself.
Scoring = to have sum of n pills at week 24.
Week 24 data is included, i.e.
4,8,12,16,20 & 24
Thank you in advance and best regards
ziad
On Nov 15, 2007 3:02 AM, Nick Cox <[email protected]> wrote:
> This does not seem a complete question.
>
> What you mean by scoring?
>
> Do you have data for week 24 or not?
>
> If you do not, how do you expect to predict week 24 from other weeks?
>
> Nick
> [email protected]
>
> Ziad El-Khatib
>
> I am trying to find a way to score number of pills intake per patient
> (cohort study) at week24:
> npill1 and npill2 are variables with values 0 or 1 (i.e. took pills or
> not) week number are 4,8,12,16
>
> studyid week npill1 npill2
> 1001 4 1 1
> 1001 8 0 1
> 1001 12 0 0
>
> etc..
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
Ziad El-Khatib
AIDS Unit
National Institute for Communicable Diseases (NICD)
1 Modderfontein Road
Private Bag X4, Sandringham, 2131
Johannesburg, South Africa
Mobile: +27 (0) 72-52 39 716
Phone: +27 (0) 11-386 6433
Fax (NICD): +27 (0)11 386 6453
Fax (alternative): +27 (0)866 18 2871
http://www.nicd.ac.za/
Division of International Health (IHCAR)
Karolinska Institutet
www.phs.ki.se/ihcar
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/