Key result
Latitude and poliomyelitis rates associate with MS mortality in Australasia but not the northern hemisphere.
Design
Other
Authors
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Australasian geographic associations merit confounder-adjusted studies; leaves open global relevance of latitude or poliomyelitis to multiple sclerosis mortality.
Observational
Yes
The study supports a geographical relationship between multiple sclerosis mortality and poliomyelitis notification rates in Australasia.
White et al. (1965) conducted an observational in Multiple sclerosis. Latitude and poliomyelitis notification rate was evaluated on Multiple sclerosis mortality. Latitude and poliomyelitis notification rates were confirmed to be related to multiple sclerosis mortality in Australasia, though not in the northern hemisphere.