. Author manuscript; available in PMC: 2012 Mar 16.

Published in final edited form as: AJNR Am J Neuroradiol. 2011 Sep 1;32(8):1420–1425. doi: 10.3174/ajnr.A2679

Table 1.

Demographics information

Characteristics of Patients	<1 cm	1–2 cm	>2 cm	P Value
Based on distance between lesion and SMC
No. of subjects (n = 74)	31	16	27	.09
Male (%)	55	50	74	.20
Handedness (% right)^a	74	93	76	.34
Mean age ± SD (yr)	50 ± 17.0	43 ± 12.5	41 ± 15.5	.05
Grade III or IV tumors (%)	71	50	43	.10
Mean length of follow-up (mo)^b	40	35	49	.28
Based on distance of lesion from Broca or Wernicke area^c
No. of subjects (n = 77)	26	15	36	.01
Male (%)	61	40	55	.74
Handedness (% right)	81	73	78	.88
Mean age ± SD (years)	44 ± 14.4	40 ± 18.6	49 ± 15.7	.12
Grade III or IV tumors (%)	54	60	53	.89
Mean length of follow-up (mo)^b	58	56	43	.26

For the motor deficits study cohort, handedness was unknown for n = 5 subjects.

The survival analysis patient cohort is slightly different from the cohort used in other parameter characterizations.

Grouping was based on minimum distance from either Broca or Wernicke area.