[Geographic distribution of multiple sclerosis and comparison with geophysical values]

Area of Science:

• Environmental Science
• Epidemiology
• Geophysics

Context:

• Previous research noted similarities between Multiple Sclerosis (MS) frequency distribution and solar particle ray patterns.
• Analysis of prevalence data indicates a stronger correlation with geomagnetic latitude than geographic latitude.

Purpose:

• To investigate the relationship between global MS frequency distribution and environmental factors, specifically geomagnetic and geographic latitude.
• To explore the spatial correlation of MS distribution with solar particle rays, geomagnetic activity, and Earth's external radiation belt.

Summary:

• Global MS frequency distribution closely follows a Gaussian curve relative to geomagnetic latitude, increasing towards the poles and decreasing near them.
• The study highlights a spatial relationship between MS distribution, solar particle rays, geomagnetic activity, and the Earth's outer radiation belt.
• The 11-year sun cycle is being considered for further analysis.

Impact:

• Provides a refined understanding of geographical factors influencing MS prevalence.
• Suggests potential environmental triggers for MS related to space weather and geomagnetic phenomena.
• Opens avenues for future research into the role of solar and geomagnetic activity in MS etiology.