The Scandinavian paradox revisited: Editorial comment on Berg-Hansen et al. ‘High prevalence and no latitude gradient of multiple sclerosis in Norway’

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References

Kurtzke

Beebe

Norman

Jr.

Epidemiology of multiple sclerosis in US veterans: III. Migration and the risk of MS. Neurology 1985; 35: 672–678.

Alter

Kahana

Zilber

. Multiple sclerosis prevalence in Israeli ethnic groups: Evidence that lifestyle influences risk. Ann Neurol 2004; 56: S30–S30.

Alter

Okihiro

Rowley

. Multiple sclerosis among Orientals and Caucasians in Hawaii. Neurology 1971; 21: 122–130.

Simpson

Jr. Blizzard

Otahal

. Latitude is significantly associated with the prevalence of multiple sclerosis: A meta-analysis. J Neurol Neurosurg Psychiatry 2011; 82: 1132–1141.

Alonso

Hernan

. Temporal trends in the incidence of multiple sclerosis: A systematic review. Neurology 2008; 71: 129–135.

Van der Mei

Ponsonby

Dwyer

. Past exposure to sun, skin phenotype, and risk of multiple sclerosis: Case-control study. Brit Med J 2003; 327: 316.

Van der Mei

Ponsonby

Dwyer

. Vitamin D levels in people with multiple sclerosis and community controls in Tasmania, Australia. J Neurol 2007; 254: 581–590.

Dahl

Aarseth

Myhr

. Multiple sclerosis in Nord-Trondelag County, Norway: A prevalence and incidence study. Acta Neurol Scand 2004; 109: 378–384.

Edland

Nyland

Riise

. Epidemiology of multiple sclerosis in the county of Vestfold, eastern Norway: Incidence and prevalence calculations. Acta Neurol Scand 1996; 93: 104–109.

10.

Larsen

Aarli

Nyland

. Western Norway, a high-risk area for multiple sclerosis: A prevalence/incidence study in the county of Hordaland. Neurology 1984; 34: 1202–1207.

11.

Midgard

Riise

Nyland

. Epidemiologic trends in multiple sclerosis in Møre and Romsdal, Norway: A prevalence/incidence study in a stable population. Neurology 1991; 41: 887–892.

12.

Kampman

Brustad

. Vitamin D: A candidate for the environmental effect in multiple sclerosis – Observations from Norway. Neuroepidemiology 2008; 30: 140–146.

13.

Ahlgren

Oden

Lycke

. High nationwide prevalence of multiple sclerosis in Sweden. Mult Scler 2011; 17: 901–908.

14.

Visser

Wilde

Wilson

. A new prevalence study of multiple sclerosis in Orkney, Shetland and Aberdeen city. J Neurol Neurosurg Psychiatry 2012; 83: 719–724.

15.

Burgaz

Akesson

Oster

. Associations of diet, supplement use, and ultraviolet B radiation exposure with vitamin D status in Swedish women during winter. Am J Clin Nutr 2007; 86: 1399–1404.