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Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an autoimmune disease of the roots of spinal nerves and peripheral nerves, whose etiopathogenic mechanisms are not well elucidated. This is clinically characterized by symmetrical distal and proximal muscle weakness, decreased or absence of deep tendon reflexes and paresthesias; developed for at least 8 weeks; although; for whose diagnosis electromyographic, histological, imaging and immune criteria are also used. The estimation of the incidence and prevalence of CIDP is difficult due to the heterogeneity in the studies; but it is estimated that the crude incidence is 0.21-0.53 per 100,000 person-years and the prevalence is 1.58-4.39 per 100,000 people.
Torres et al. (Mon,) studied this question.