# Tagged Questions

731 views

### Power calculations, logistic regression with continuous exposure--cohort

I'm trying to estimate power in a logistic regression with a continuous exposure in a cohort study (ie, the ratio of the sampling probabilities is 1). I have population cumulative incidence ...
55 views

### Dealing with dependant data when estimating probability of an event happening

I have 10 year worth of data from 1970 to 1980 (40 quarters). For each quarter I have five measurements M1, M2, M3, M4 and M5. TWIST: Although the data I have is on individual patient level the ...
109 views

### How should I model a Dose-Response Curve with Resistant Subpopulation?

I am looking at the relationship between an environmental exposure and a health outcome. Measurements have been taken on subjects at a number of different time points and I am trying to work out if ...
59 views

### Pre-process classification data according to ‘amount of evidence’

I have an area which is divided into polygons of different sizes. Each polygon has the same associated features/predictors and I know whether something occurs within the polygon or not. If something ...
129 views

### How to compute confidence interval for number to treat in a logistic regression?

I have built a multivariate regression model where $\mathbf x$ is the variable vector. Now I am asked to calculate the confidence interval for the number to treat (NNT) at $\mathbf x=\mathbf {x_0}$ ...
3k views

### Poisson regression to estimate relative risk for binary outcomes

Brief Summary Why is it more common for logistic regression (with odds ratios) to be used in cohort studies with binary outcomes, as opposed to poisson regression (with relative risks)? Background ...