Dyskinetic cerebral palsy accounts for what percentage of CP cases?

• A. 10-15%
• B. 40-50%
• C. 60-70%
• D. 20-30%

Answer: (D)

Understanding how common each CP type is helps you pick the right range. Dyskinetic cerebral palsy, which includes the athetoid and dystonic forms caused by basal ganglia involvement, is less common than the spastic form. Across many studies, about one-fifth to one-third of CP cases are dyskinetic, which is commonly described as roughly 20–25% and often cited within a 20–30% range. That’s why the 20–30% option is the best fit.

In contrast, spastic CP is the most frequent type, reflecting the larger share of CP cases, while dyskinetic CP sits as a minority. So the correct range aligns with the typical distribution: dyskinetic CP makes up about a fifth to a bit over a quarter of cases.