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Table 2 Follow-up of the adenoma group

From: Transanal endoscopic microsurgery in treatment of rectal adenomas and T1 low-risk carcinomas

  Nonhigh-grade High-grade Overall
n 51 52 103
Recurrence free (n) 47 49 96
Lost to follow-up (n) 1 3 4
Recurrences (n) 3 0 3
Mean relapse-free survival (months) 19.4 22.9 21.1
Mean duration of observation period (months) 20.7 22.9 21.8