Catherine M Herzog

2 Questions 5 Answers 0 Followers

Questions related from Catherine M Herzog

How to determine infectious viral dose for experimental animals and the sample size(s) needed to do so?

During a transmission trial, once one or more viral isolates are prepared, animals are inoculated. If the infectious dose is not yet known, what is a proper study design and analysis approach to...

06 June 2019 1,704 2 View

How can I calculate concordance / C-statistic / C-index for clustered survival data?

I've carried out a survival analysis. I have a dataset of live singleton deliveries over a few year period (~203, 000 deliveries, 1, 512 events). I'd like to be able to calculate the...

12 December 2014 2,230 4 View