What percentage of cerebral palsy cases does ataxic cerebral palsy represent?

• A. 5%
• B. 10%
• C. 15%
• D. 20%

Answer: (B)

This question tests how common ataxic cerebral palsy is among all cerebral palsy cases. Ataxic CP is one of the less frequent types, with most cases being spastic, and a sizable minority being dyskinetic. The typical estimate places ataxic CP around five to ten percent of CP cases. Among the options given, ten percent aligns with the common teaching range and best fits the reality that ataxic CP is relatively rare compared with other types. A higher figure like fifteen or twenty percent would overstate its frequency, while five percent is possible in some series but less commonly used in exam reference ranges. Therefore, ten percent is the most appropriate choice.