Adult-Onset Neuroepidemiology in Finland: Lessons to Learn and Work to Do

Area of Science:

• Neuroscience
• Genetics
• Public Health

Background:

• Finland's population is a genetic isolate, yet not homogenous.
• Existing neuroepidemiological data for adult-onset disorders in Finland is limited.
• Regional variations in disease incidence and prevalence are suspected.

Purpose of the Study:

• To review available neuroepidemiological data for adult-onset disorders in Finland.
• To identify specific neurological disorders with high or low prevalence in the Finnish population.
• To highlight data deficiencies and obstacles to neuroepidemiological research in Finland.

Main Methods:

• Review of existing literature and data on neuroepidemiology in Finland.
• Analysis of prevalence and incidence patterns for various neurological disorders.
• Identification of data gaps and research impediments.

Main Results:

• Elevated risk observed for Unverricht-Lundborg disease (EPM1), Multiple Sclerosis (MS), Amyotrophic Lateral Sclerosis (ALS), Spinal muscular atrophy (Jokela type) (SMAJ), and adult-onset dystonia.
• Notably low or absent prevalence of Friedreich's ataxia (FRDA) and Wilson's disease (WD).
• Significant lack of data for common disorders (stroke, Alzheimer's) and rare conditions (neurosarcoidosis).

Conclusions:

• Finland exhibits a unique neuroepidemiological profile with specific genetic predispositions.
• Urgent need for comprehensive, granular nationwide data collection and research.
• Administrative and financial barriers impede crucial advancements in Finnish neuroepidemiology.