The influence of cholinesterase inhibitor therapy for dementia on risk of cardiac pacemaker insertion: a retrospective, population-based, health administrative databases study in Ontario, Canada

Table 1 Diagnostic codes used to determine the presence of dementia in study databases

Code	Description
ICD10
F00	Dementia in Alzheimer’s disease
F01	Vascular dementia
F02	Dementia from Pick’s, Creutzfeldt-Jakob, Huntington’s, Parkinsons, HIV, or other disease
F03	Unspecified dementia
G30	Alzheimer’s disease
ICD9
290	Senile dementia, presenile dementia
3310	Alzheimer’s disease
3311	Pick’s disease
3312	Senile degeneration of the brain
2912	Alcoholic dementia
2941	Dementia in other diseases

ICD = International Classification of Diseases, standardized coding versions 9 & 10.
ICD10 codes were used in DAD and NACRS after 2002. ICD9 codes were used prior to 2002 and in the OHIP database. Since OHIP only captures the first 3 numbers of the ICD9 code, only 290 was used to identify dementia in this dataset.

ISSN: 1471-2377