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. Author manuscript; available in PMC: 2015 May 31.
Published in final edited form as: World Neurosurg. 2014 Aug 1;83(3):261–268. doi: 10.1016/j.wneu.2014.07.043

Table 3.

Statistical analysis of the biopsy yield of the three methods

Comparison Groups OR 95%-CI P value
Frame-based vs. Frameless 2.38 0.64 - 8.76 .26
Frameless vs. ioMRI 1.83 0.85 - 3.95 .13
Frame-based vs. ioMRI 4.35 1.24 - 15.28 * .02
*

p<.05