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. Author manuscript; available in PMC: 2019 Jun 13.
Published in final edited form as: Clin Genitourin Cancer. 2018 Nov 22;17(2):e273–e280. doi: 10.1016/j.clgc.2018.11.006

Table 3.

Brain Metastasis Local Control in 177 Lesions

Characteristic HR (95% CI) P
Lesion Size
 < 1 cm Reference .0008
 1–2 cm 1.14 (0.35, 3.68)
 > 2 cm 7.52 (2.56, 22.10)
Lesion Volume
 < 1 cc Reference .0015
 1–2 cc —a
 > 2 cc 6.57 (2.36, 18.31)
Treatment Dose
 12–18 Gy Reference .5205
 20–24 Gy 0.71 (0.25, 2.04)
Treatment Isodose
 40–50% Reference .3390
 55–80% 0.60 (0.21, 1.70)

Abbreviations: CI = confidence interval; HR = hazard ratio.

a

No events occurred in group.