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. Author manuscript; available in PMC: 2023 Apr 1.

Published in final edited form as: Dis Colon Rectum. 2022 Apr 1;65(4):489–496. doi: 10.1097/DCR.0000000000002145

TABLE 4.

Accuracy of ymrCRM categorization

Group (n)	%					No. (%) of patients
Group (n)	Accuracy	Sensitivity	Specificity	PPV	NPV	Overstaging	Understaging
Full cohort (94)	63.8	64.7	63.6	28.2	89.0	28 (29.8)	6 (6.4)

Anterior CRM (42)	50.0	66.6	47.2	17.3	89.5	19 (45.2)	2 (4.8)
Distal tumor^a (35)	51.4	58.3	47.8	36.8	68.8	12 (34.3)	5 (14.3)

^a

≤7 cm from the anal verge.