Geomagnetic disturbances may be environmental risk factor for multiple sclerosis: an ecological study of 111 locations in 24 countries

Table 2 Coefficients of regression models

	Europe			North America			North Hemisphere			Australasia†			Both hemispheres
	R	AR²	SEE	R	AR²	SEE	R	AR²	SEE	R	AR²	SEE	R	AR²	SEE
AMAG60	0.69	0.47	33.8	0.65	0.42	69.85	0.71	0.50	60	0.92	0.84	11.92	0.75	0.56	57.07
GeoLat	0.58	0.34	37.93	0.40	0.16	84.36	0.27	0.07	82	0.89	0.79	13.67	0.41	0.17	78.48
GeoMag	0.60	0.36	37.17	0.40	0.16	84.36	0.57	0.33	70	0.91	0.83	12.41	0.63	0.40	66.50
AGRAPH60	0.42	0.18	42.27	0.21	0.05	89.85	0.19	0.04	83	0.92	0.84	11.96	0.35	0.12	80.55

R: Coefficient of correlation; AR²: Adjusted R² (coefficient of determination); SEE: Standard error of estimates; AMAG60: Angular distance to geomagnetic 60 latitude; AGRAPH60: Angular distance to geographic 60 latitude; GeoLat: Geographic latitude; GeoMag: Geomagnetic latitude.
† Australasia is a region that geopolitically comprises Australia and New Zealand.

ISSN: 1471-2377