TL26: Advance Methodologies and Available Softwares (SAS) in Analysing Overdispersed Count Data
*Santosh C Sutradhar, Pfizer Inc. 


Overdispersion or extra variation is a common phenomenon that occurs when binomial (multinomial) data exhibit larger variances than that permitted by the binomial (multinomial) model. This arises when the data are clustered or when the assumption of independence is violated. There is no clear guidance on challenges in dealing with count data with overdispersion. During the roundtable lunch we can have an interactive discussion on the recent development in methodologies and available softwares in analysing overdispersed count data.