Analysis of the Volumes of the Posterior Cranial Fossa, Cerebellum, and Herniated Tonsils Using the Stereological Methods in Patients with Chiari Type I Malformation

Table 3

Mean (±SD) values for age, CV, PCFV, and CV to PCFV ratio, herniated tonsillar length, herniated tonsillar volume, and herniated tonsillar volume to CV ratio for both sexes in the CMI group.

	Age	CV (cm^3)	PCFV (cm^3)	CV to PCFV ratio (%)	Herniated tonsil lenght (mm)	Herniated tonsil volume (cm^3)	Herniated tonsil volume to CV ratio (%)
Men (𝑛: 14)	37.0±11.6	122.58±21.50	152.53±29.79	80.39±5.65	10.35±3.93	1.01±0.61	0.83±0.42
Women (𝑛: 16)	41.9±13.8	113.03±14.14	140.24±9.81	80.40±7.65	9.0±2.78	0.79±0.37	0.71±0.35
Total (𝑛: 30)	39.63±12.88	117.49±18.28	146.01±19.07	80.39±6.68	9.63±3.37	0.89±0.50	0.77±0.38
P	0.330	0.157	0.790	0.997	0.280	0.239	0.424

CV: cerebellar volume, PCVF: posterior cranial fossa volume.