[R-sig-Epi] Calculate local RR from GAM

[BXC (Bendix Carstensen)]

In the paper:

@article{Carstensen:Plummer:2010:JSSOBK:v38i06,
  author =	"Bendix Carstensen and Martyn Plummer",
  title =	"Using Lexis Objects for Multi-State Models in R",
  journal =	"Journal of Statistical Software",
  volume =	"38",
  number =	"6",
  pages =	"1--18",
  day =  	"4",
  month =	"1",
  year = 	"2011",
  CODEN =	"JSSOBK",
  ISSN = 	"1548-7660",
  bibdate =	"2010-09-16",
  URL =  	"http://www.jstatsoft.org/v38/i06",
  accepted =	"2010-09-16",
  acknowledgement = "",
  keywords =	"",
  submitted =	"2010-02-09",
}

there is a section which explains how to do this for parametric spline models which are not dramatically dissimilar from GAM models.

Best regards,
Bendix Carstensen

> -----Original Message-----
> From: r-sig-epi-bounces at r-project.org 
> [mailto:r-sig-epi-bounces at r-project.org] On Behalf Of Przemyslaw Jura
> Sent: 9. februar 2011 14:38
> To: r-sig-epi at r-project.org
> Subject: [R-sig-Epi] Calculate local RR from GAM
> 
> Dear Group,
> I am just a beginner in Epidemiology, epi-statistics and this 
> group hence, in advance I apologize if I ask trivial question.
> 
> I would like to ask how is it possible to calculate from GAM 
> (general additive model) Relative Risk the model has 
> following formula:
> log(E[O_i]) ~ log(N_i) + someCovariates_i, where Oi is number 
> of cases of some disease in i-th area, N is population at 
> risk in i-th area, other covariates are i-th region specific.
> I one paper authors calculated RR for each i-th region out of 
> this model, but I have no idea how can I do it myself.
> 
> 
> 
> Kindest regards,
> 
> pj
> 
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