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Breslow Day Test

2 messages · Ngayee J Law, vito muggeo

#
Hello everyone,

Does anyone know if I can do Breslow Day Test for the homogeneity of odds
ratio in R?
Thanks!

- Jacqueline
#
I don't remember this test exactly; however testing homogenity of the odds
ratio in K 2x2 tables is equivalent to testing interaction x:z in the
logistic model:

y~x+z+x:z

where y is the (binary) response variable, x is the (binary) "exposure"
variable and z is the K-levels confounding factor,

best,
vito


----- Original Message -----
From: "Ngayee J Law" <Ngayee.Law at celeradiagnostics.com>
To: <r-help at stat.math.ethz.ch>
Sent: Tuesday, December 17, 2002 3:25 AM
Subject: [R] Breslow Day Test