Only thallium index shows statistical significance between malignant and nonmalignant brain lesions

Characteristic	Infectious Lesions(n = 20)	Malignant Lesions(n = 28)
Age (y)	42.5 ± 7.8	41.1 ± 7.6
Gender (% male)	70	89
Average size (cm)	1.98 ± 0.79	2.49 ± 1.47
Thallium index	1.59 ± 0.92	2.41 ± 2.14*

^*P < .004.