I am aware that there are different methods to deal with ties in survival analysis, which are based on alternating the partial likelihood used to estimate the beta parameters. I am working on a dataset, where time to event is recorded in days. Has the fact that the time until event is recorded in days and hence a limited amount of values for this time are seen an influence on the method for handling the ties in the analysis?

Considering that the different methods (breslow, discrete and efron) preform well if there are few ties, increasing the time interval (ex. from day to week) would have an influence on the methods, as more ties would be generated. On the other hand decreasing the time interval (dy to hours) would create less ties, and thus has no influence on the method for handling ties. Is this correct?


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