Greetings

I run a binary logistic regression. I try to choose among many many covariates I have these that are possible confounders and when building the regression line I think I tried to make a good coverage of these confounders and relevant covariates.

I run the same regression for few test for few dichotomic variables I have at different levels as these are my variables of interest.

My Nagel-Kerke R^2 is somewhere around 0.36 and for the omnibus test the model is significant. Yet the model is significant in the Homser and Lemeshow test. I can play along some covariates so the model would fit better according to this measure and then the Hom-Lem would not be significant but for the next regression I need to run with the same covariates but for the independent variable of my interest the Hom-Lem is again significant - I'm afraid I have no fully adjused model I can get with Hom-Lem insignifcant. Yet other parameters as I understand them indicate the model is reasonble.

Is significant H-L test makes the model irrelevant? or not reliable to the extent it can't be published?

edit: my sample is around 4400, out o fit 160 account positive (in the dependent outcome)

regards

David

I run a binary logistic regression. I try to choose among many many covariates I have these that are possible confounders and when building the regression line I think I tried to make a good coverage of these confounders and relevant covariates.

I run the same regression for few test for few dichotomic variables I have at different levels as these are my variables of interest.

My Nagel-Kerke R^2 is somewhere around 0.36 and for the omnibus test the model is significant. Yet the model is significant in the Homser and Lemeshow test. I can play along some covariates so the model would fit better according to this measure and then the Hom-Lem would not be significant but for the next regression I need to run with the same covariates but for the independent variable of my interest the Hom-Lem is again significant - I'm afraid I have no fully adjused model I can get with Hom-Lem insignifcant. Yet other parameters as I understand them indicate the model is reasonble.

Is significant H-L test makes the model irrelevant? or not reliable to the extent it can't be published?

edit: my sample is around 4400, out o fit 160 account positive (in the dependent outcome)

regards

David

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