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. Author manuscript; available in PMC: 2022 Jul 1.

Published in final edited form as: J Neurosurg. 2021 Jul 16;136(1):88–96. doi: 10.3171/2021.1.JNS203536

TABLE 1.

Characteristics of the study population

Characteristic	Cancer Subtype
Characteristic	Breast	Colon	Lung	Melanoma	Renal
No. of patients	134 (14)	33 (3)	226 (23)	483 (50)	89 (9)
Metastatic lesions
Total	285 (14)	52 (2)	502 (24)	1099 (52)	168 (8)
No./patient	2.1 ± 1.4	1.6 ± 0.85	2.5 ± 2.9	2.3 ± 1.7	1.9 ± 1.4
Tumor vol, cm³	2.9 ± 4.2	4.8 ± 5.0	2.6 ± 4.5	2.2 ± 4.2	2.5 ± 3.6
Age, yrs	52.9 ± 10.6	63.9 ± 10.0	60.3 ± 11.7	56.5 ± 14.6	60.8 ± 9.50
Sex
Male	2 (1)	28 (54)	238 (47)	733 (67)	140 (83)
Female	283 (99)	24 (46)	264 (53)	366 (33)	28 (17)

Values are shown as number (percent) or mean ± SD.