Following radical nephrectomy normal structures, such as bowel, may simulate a recurrent mass.
This may be due to a lack of information on how to simulate recurrent event data using a total time scale as opposed to published simulation algorithms for gap time [ 3, 4] and other multivariate [ 17, 18] or univariate [ 19] failure time data.
Intramedullary abscesses may simulate tumor.
Alternatively, one may simulate the remainder of the trial.
At CT, an ectopic parathyroid may simulate a lymph node.
We simulated recurrent falls in two groups, control and intervention, using Matlab Version 7 software (see Additional file 1).
We retrospectively simulated recurrent SDR calculation and validation with varying periodicity (quarterly vs. monthly), resignalling criteria, and N ≥ 3 vs. N ≥ 5.
We have presented a general method for simulating recurrent event data when the hazard is defined on a total time scale.
Additional file 1 Provides a readily accessible R function, that implements the derived technique for simulating recurrent event data following an Andersen-Gill model.
We provided an R function simrec for simulating recurrent event data under a total time scale in the counting process style.
