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. 2010 Sep 28;8:110. doi: 10.1186/1477-7525-8-110

Table 5.

Accuracy of a priori predictions

N = 90 %
Exact 43 48

Off by 1 category 38 42

a priori > observed 31
a priori < observed 7

Off by 2 category 9 10

a priori > observed 9
a priori < observed 0