Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: longitudinal data


From   "joshua liwindi" <[email protected]>
To   [email protected]
Subject   st: longitudinal data
Date   Mon, 13 Jun 2011 07:35:57 +0000

Hi all,
 I would like to get a hint in the easiest way to analyse this data, am not very good in STATA and more so with Biostatistics.
 I have a data set with data from an anti-malarial study with 3 arms placebo(SP), and two active arms, (SP+AS3) and (SP+AS2).
 gametocytes count is measured at days 0,1,2,7,14,21 and 28
The dataset is presented in a wide format
am intrested in effectiveness of treatment on gametocytes count and its prevalence during the 28 days
 1. How do i calculate odds ratio and proportions and  2. p values of (SP vs AS1) and (SP vs AS2) and
 3. Corresponding p values of difference in the prevalence in those two groups with their respective 95% confidence intervals for the days above.

 Do I need to change the data set to a long format or I can do all this analysis with the current wide format.

Thanks

 Liwindi

 
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index