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. 2015 Jan;36(1):210–218. doi: 10.3174/ajnr.A4096

Table 2:

Contingency table (2 × 2) showing the lack of correlation between epidural leak and type of cortical erosion, large or permeativea

Epidural Leak+ Epidural Leak− Total
Large CE 7 36 43
Permeative CE 3 24 27
Total 10 60 70

Note:—CE indicates cortical erosion.

a

Fisher exact test. Two-tailed P = .730.