Table 1.

Excluded patients

Reasons for exclusionMedical file exclusion (n = 892)*Dead (n = 139)Refused or unattainable (n = 56)Clinically examined (n = 346)Total (n = 892)
* The total number in the patient group before exclusion.
Drug-induced parkinsonism298311218359
Other parkinsonism151932057
Essential tremor14651237
Other neurologic disorder1630322
No evidence of PD801312
Insufficient information084012
Onset too recent or unknown00088
Total351672564507