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Re: st: linear mixed models doubt in how to interpret the Coef
From
Joerg Luedicke <[email protected]>
To
[email protected]
Subject
Re: st: linear mixed models doubt in how to interpret the Coef
Date
Thu, 30 Jun 2011 11:29:36 -0400
If you are interested in development of -SDNN- over time conditional
on -Glu-, it could make
sense to run a growth model which would involve an interaction between
time and -Glu-. For
an example, have a look at Hesketh/Skrondal's introductory book
(http://www.stata.com/bookstore/mlmus2.html)
, p. 211ff.
J.
On Thu, Jun 30, 2011 at 11:08 AM, Luisa Soares-Miranda
<[email protected]> wrote:
> Dear Maarten,
>
> Thank you for your help. But even though can I say that a longitudinal
> analyze of the associations between Glu and SDNN was cerried out?
>
> thanks
>
> Luisa
>
> On Thu, Jun 30, 2011 at 3:57 PM, Luisa Soares-Miranda
> <[email protected]> wrote:
>> Dear all,
>> I am writing you because I am performing a longitudinal mix models
>> analyses as the following
>>
>> xi: xtmixed sdnn i.year_of_visit gender age smoke alcohol
>> waistcinrcunfrence_std pa_std tasis_std trg_std glu_std hdl_std
>> || id: i.year, covariance(identity)
>>
>> I have 3 years of data, my main doubt now is how can I interpret my
>> Coefficient? If my results I have that the Coef of Glu is -3.35 and
>> the p is 0.001. Can I say that when I increase by one unit Glu sdnn
>> decreases -3.35 ms over 3 years? So Glu is associated with a decrease
>> in sdnn over time.
>> thank you so much for your help,
>> regards
>> Luisa
>>
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