Table 3.

Spetzler-Martin grade characteristics

Spetzler-Martin grade	Number of Patients (*)	Percent of total
I	6	22.2%
II	10	37.0%
III	6	22.2%
IV	5	18.5%
Size	Number of patients	Percent of total
<3cm	14	51.9%
3–6cm	12	44.4%
>6cm	1	3.7%
Pattern of venous drainage	Number of patients	Percent of total
Deep	2	7.4%
Superficial	16	59.3%
Both	9	33.3%
Location	Number of patients	Percent of total
Eloquent site	9	33.3%
Non-Eloquent site	18	66.7%
Compactness Score	Number of patients **	Percent of total
1	6	25.0%
2	16	66.7%
3	2	8.3%

±, total = total number for which the data was available

cm, centimeter

^*In 1 patient, S-M grade could not be determined

^**In 4 patients, Compactness Score could not be determined