Exact(60)
Control variables as above.
ESACK defines new variables as below.
random variables as long as j≠k.
Questions on future prospects are psychological variables as well.
Last, bias could be caused by missing variables, as follows.
This relation may exist for other variables as well.
Log transformation was performed for positively skewed variables, as appropriate.
The model can be implemented with local variables as follows.
Demographic variables as well as illness-related characteristics were collected.
Data were occasionally missing for other variables as well.
Add other variables as needed.
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