Table 2: Bivariate analysis comparing frequency of diagnostic certainty phrases by imaging modality in reports that contain diagnostic certainty phrases (n=2,071/5,598).

Imaging Modality Reports that Contain Phrases with
Good Agreement/ Reports that Contain Diagnostic Certainty Phrases
X-ray (n=1,226) 6/331 2%
CT (n=3,010) 67/1,159 6%
MRI (n=1,362) 48/581 8%
Chi-square Statistic (comparing X-ray with CT+MRI) 16.00
P-value 0.0003