From: Dimensions of the posterior fossa in patients symptomatic for Chiari I malformation but without cerebellar tonsillar descent
Chiari-like Group
Control Group
Number of Patients
22
25
Ageb
48 (17–65)
51 (34–68)
Male to female ratio
8:14
9:16
Duration of symptomsb
7.4 (3–15)
N/A