Sociodemographic Factors and Criminal Behaviour Preceding Neurodegenerative Disease - Retrospective Register Study

Plain-language summary

In this retrospective register study, clinically classified individuals with neurodegenerative disease from the years 2010-2021 will be verified from the clinical records from KUH and Oulu University Hospital (OUH). Based on the Finnish social security number, these individuals will be linked to the the national registers of Statistics Finland and Finnish Social and Health Data Permit Authority Findata including incomes, sociodemographic factors, education, occupation, criminal records as well as to the national registers including the bought pharmaceuticals, comorbidities and causes of death. For each study case, 10 randomly selected control cases, matched with age, sex and geographical area, will be used. The aim of the study is to examine: * 1\) The prevalence of criminal and other disruptive behaviour in groups of different neurodegenerative diseases prior to and after the diagnosis * 2\) Changes in employment, residency,income, and marital status prior to and after the neurodegenerative disease diagnosis * 3\) Hospital diagnoses and reimbursable drugs prior to and after the diagnosis * 4\) Causes of death in patients with neurodegenerative disease to study excess mortality of the patients

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