Statalist


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

Re: st: Hazard ratios to rates.


From   Ricardo Ovaldia <ovaldia@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Hazard ratios to rates.
Date   Wed, 17 Dec 2008 10:14:29 -0800 (PST)

Thank you Steve and Enzo.


Ricardo Ovaldia, MS
Statistician 
Oklahoma City, OK


--- On Wed, 12/17/08, Enzo Coviello <enzo.coviello@tin.it> wrote:

> From: Enzo Coviello <enzo.coviello@tin.it>
> Subject: Re: st: Hazard ratios to rates.
> To: statalist@hsphsun2.harvard.edu
> Date: Wednesday, December 17, 2008, 1:21 AM
> Steven Samuels ha scritto:
> > Hazard ratios compare two distributions, but you want
> to know something about one of the distributions.  It is the
> same as if you had asked: "I know the ratio of two
> numbers is 2:1.  What is one of them?"
> > 
> > So,unless you have more information, the answer to
> your question is "No".
> 
> I would add that a Cox model makes available an estimate of
> the cumulative hazard and after we can use -stcurve- to
> obtain an estimate of the hazard at some specified value.
> See -stcurve-.
> 
> 
> Enzo
> 
> 
> > 
> > -Steve
> > 
> > On Dec 16, 2008, at 5:03 PM, Ricardo Ovaldia wrote:
> > 
> >> 
> >> Is there a way to convert hazard ratios from
> survival to rates such as number of deaths per 10,000?
> >> 
> >> For example if for treatment A compare to a pacebo
> the HR=1.3, I know that there is 30% increase risk of
> failure under treatment A. However, can I say what the rate
> per 1000 patients would be? For example: X patient per 1000
> will die on treatment A
> >> 
> > *
> > *   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/
> > 
> 
> 
> -- Enzo Coviello
> Unità di Epidemiologia e Statistica ASL Bari
> Piazza V. Emanuele, 14 - 70054 GIOVINAZZO (BA)
> Italy
> tel +39 080 3357883 - fax +39 080 3357867
> mobile 347 5016016 ^^^^
> Home
> via Imbriani, 186 - 70055 MINERVINO MURGE (BA)
> tel +39 0883 695055
> 
> *
> *   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/


      

*
*   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 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index