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    Logistic regression - hosmer lamselow goodness of fit

    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...
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    Comparing proportions (or comparing performances of diagnostic tools)

    Hey everyone and thanks in advance for your attention I'm trying to compare the performances of 5 different softwares acting as diagnostic tools. all they do is asking the patient questions for symptoms. I have given each software 20 vignettes in which everyone has 20-40 symptoms the softwares...
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    Dose Response and logistic regression

    Hello and thank you for your time. It's quite long so you could get the accurate picture I'm investigating the association between a (life time mean) vitamin level and the occurrence of a disease (yes/no). I am using a 4600 patients data set (after cleaned) among 160 developed the disease and...
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    How to do linear regression for multiple subjects

    Hello, super - basic question, thanks in advance: I'm trying to analyze the impact of group session meetings on sleep quality of (preliminary 7, but around 28 subjects eventually) 7 different patients. Each morning they have assigned the time they slept (in minutets for instance) for a period...
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    Comparing three different slopes between three regression lines

    Hi all, I hope the thread is in it's place. I wanted to compare slopes between three different simple regression lines. The three data sets have the same x (time) and y (measured value) variables but each data set have gone through a different treatment and so the intercept and the slopes are...
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    Comparing three coefficients

    Hi all, I hope the thread is in it's place. I wanted to compare slopes between three different simple regression lines. The three data sets have the same x (time) and y (measured value) variables but each data set have gone through a different treatment and so the intercept and the slopes are...