Smoking confirmed as MS risk factor

Smoking is a clear risk factor for developing multiple sclerosis, which is even further elevated in smokers living at lower latitudes, an Australian meta-analysis finds.

Pooled data from 26 studies including over 8,600 cases of MS and 400,000 healthy controls showed smokers and ex-smokers had a 54% higher risk of MS.

There was little heterogeneity between the studies and even a more conservative selection of 19 studies produced a similar association between smoking and MS, the authors from Queensland’s Griffith and Gold

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