Table 4. Summary of clinical response rate and duration of carbidopa-levodopa in patients with MSA in the European and American cohort studies.

MSA-C: Multiple system atrophy cerebellar type; MSA-P: multiple system atrophy parkinsonian type; L-Dopa: levodopa.

	Response to L-Dopa in MSA-C patients	Response to L-Dopa in MSA-P patients	Response duration (years) in MSA-C patients	Response duration (years) in MSA-P patients	Total number of cases
European cohort study [5]	13%	31.2%	3.5	3.3	141
American cohort study [16]	25%	25%	2.6	3.3	126