Table 1 Variables used in the analysis
Variables | Type | Meaning |
|---|---|---|
Gender | Exact | Gender of patient (Males, Females) |
Practice | Exact | Practice ID |
JCG | Exact | Year of visiting the GP |
Age | Varying | Age of the patient |
Follow-up | Exact | Cases and controls should enter in database the same year |
Follow-up | Trimmed | Controls could enter in database prior to the case |
Comorbidity Index | Exact | Cases and controls should have the same number of diseases |
Comorbidity Index | Varying | Controls could have less, equal or more diseases based on a threashold |