. 2012 May 3;14(7):849–858. doi: 10.1093/neuonc/nos113

Table 4.

Univariate analysis of clinicopathological predictors of time to brain metastasis as isolated first visceral site in the context of competing risks

Variable	P (Cohort 1)^a	P (Cohort 2)^a	P^b
Primary tumor thickness (mm)
≤1 vs >1	.002	.015	.0003
Primary tumor ulceration status
Absent vs present	.002	.0002	<.0001
Primary tumor mitosis
Absent vs present	.13	.27	.23
AJCC stage at pathological diagnosis
I/II vs III/IV	.0013	.05	.0007
Primary tumor histologic subtype
Nodular vs superficial spreading/other	.036	.002	.0008
Gender
Male vs female	.65	.35	.56

^aBy Gray's test.

^bCombined P value.