Föreläsningar och seminarier ARC-seminarium med Nurgul Batyrbekova: "Survival analysis - Issues of times scales and censoring"

2023-03-14 11:00 Add to iCal
Campus Solna Stora konforerensrummet, plan 10, Widerströmska huset, Tomtebodavägen 18a, och via Zoom (https://ki-se.zoom.us/j/6019910648)

Välkommen till ett nytt ARC-seminarium som gästas av Nurgul Batyrbekova, doktorand vid institutionen för medicinsk epidemiologi och biostatistik, tisdagen den 14 mars 2023, kl. 11:00. Det går även att ansluta till seminariet via Zoom.

"Modelling multiple time-scale with flexible parametric survival models"


Nurgul Batyrbekova, Karolinska Institutet, Institutionen för medicinsk epidemiologi och biostatistik


There are situations when we need to model data with multiple time-scales. We usually use Cox or Poisson models to model data with multiple time-scales. This would require fine-splitting of the data to ensure that the assumption of proportional hazards within given time-intervals holds. However, this is not optimal when the dataset is large and when the models become too complex to manage. Iacobelli and Carstensen (2013) have shown how to fit multiple time-scales using Poisson models within a multistate framework. The drawback with Poisson method, is that users are required to assume constant hazard rates within time-intervals. An alternative approach is to fit flexible parametric survival models when modelling data with multiple time-scales. This method does not require assumtion of constant hazard rates, splitting data into small time-intervals, and therefore saves time, helps avoid technological limitations and reduces room for error

Delta via Zoom

Anslut till seminariet via Zoomlänk


Serhiy Dekhtyar Senior forskare