Table 1.

Radiology reports

Reports	Cumulative (19 months)	Pre-intervention (4 months)	Post-intervention (15 months)	P value (pre/post)
Total number of reports generated	391,657	82,353	309,304
Number of reports flagged by error detection algorithm	826 (0.21 %)	198 (0.24 %)	628 (0.20 %)	0.04
Laterality	547 (0.14 %)	124 (0.15 %)	423 (0.14 %)
Gender mismatch	279 (0.07 %)	74 (0.09 %)	205 (0.06 %)
Flagged reports that are positive for errors (true positives)	401 (0.10 %)	116 (0.14 %)	285 (0.09 %)	<0.0001
Laterality	141 (0.04 %)	43 (0.05 %)	98 (0.03 %)
Gender mismatch	260 (0.07 %)	73 (0.09 %)	187 (0.07 %)
Confirmed errors that were ultimately corrected	64 % (256/401)	15 % (17/116)	84 % (239/285)	<0.0001
Laterality error precision	26 % (141/547)	35 % (43/124)	23 % (98/423)
Gender error precision	93 % (260/279)	99 % (73/74)	91 % (187/205)