We included age and gender and degree of comorbidity (Charlson Score), factors known to be associated with ICH outcome, 26 and surgical procedures in the models.
The value is given at the time a patient is undergoing a procedure in the model.
We followed the same procedure in the model, except for the method to distinguish between personality types: individuals were classified according to time spent near the predator by the same thresholds as in the empirical data, but the individual's feeding rate was not taken into account.
Finally, the KP-IRAM was calculated on the day of the procedure (rather than at admission) for people who had one of the procedures included in the model.
For people undergoing one of the procedures considered in the model (see additional file 2), the index day was the day of the procedure.
In this regard, a Visual Basic.Net program was created to execute the multiple procedures contained in the model.
19 We used the same cost for perioperative and severe postoperative complications for each of the procedures included in the model.
The CHERG provides technical inputs to the assumptions and procedures used in the model and also guides the on-going development of the model.
To address the first difficulty, we use a bootstrapping procedure in the model-building process to ensure that the model's complexity is not excessive given the quantity of data available.
The count procedure in the models proposed here similarly captures the phenomenon of a repeated step-wise process, but does so in a way that allows the parameters of the on/off initiation model to be mapped to the new models, and surveyed.
