|From||KRISTIEN VERHEYEN <firstname.lastname@example.org>|
|Subject||st: Producing incidence rates and weighted incidence rate|
|Date||Fri, 6 Jun 2003 11:47:43 +0100|
Dear all, I have dataset from a cohort study including horses, trainers, number of fractures and days at risk. Each observation consists of a horse with its ID number, the trainer by which it was trained, the number of fractures it sustained during the study period and the number of days it contributed to the study.