A systematic review of the incidence and prevalence of autoimmune disease in multiple sclerosis.

12 , 15 However, the only study with controls that appeared to be selected from the same underlying source population reported a nearly statistically significant increase in prevalence in the MS population (OR 2.5; 0.9–6.6, Supplemental Table 63). 33 Guillain-Barre syndrome One Danish study reported the incidence of Guillain-Barre syndrome to be 0% (Supplemental Table 64), and this did not differ from expectations for the general population (Supplemental Table 65). 48 Four studies reported the prevalence to range from 0.11–1.66%. 3 , 21 , 22 , 33 The highest estimate was produced by a Danish study that was hospital-based, 21 while the other estimates were drawn from outpatient, or inpatient and outpatient records.

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