Exposició GRASS

De 10:00-11:00
* Víctor, Carles Serrat, Klaus: Eficiència en programació en R.

De 11:00-12:00
* Rodrigo Villegas: Empirical study of correlated survival times for recurrent events with proportional hazards margins and the effect of correlation and censoring.

Resum:

We compare the efficiency, accuracy and robustness of models independent increment (AG), marginal (WLW) and conditional (PWP) under different simulated scenarios with varying degrees of within-subject correlation and censoring. We find substantial difference between models. In particular, we note that the corrected variance method WLW is not optimum when the intra-event correlation is high.