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Table 2 Registrant Findings

From: Outcomes of screening and surveillance in people with two parents affected by colorectal cancers: experiences from the Familial Bowel Cancer Service

Characteristic

Registrants

Overall Prevalence Rates

N = 96

 All Neoplasms

41 (42.7%)

  All Adenomas

39 (40.6%)

   Non-Advanced Adenomas

29 (30.2%)

   Advanced Adenomas

10 (10.4%)

  Colorectal cancer [CRC]

2 (2.1%)

Registrant Neoplasms

N = 41

 Pathology for First Neoplasms

  Tubular Adenoma [TA]

17 (41.4%)

  Sessile Serrated Adenoma/Polyp [SSA/P]

11 (26.8%)

  Mixed adenomatous pathology

3 (7.3%)

  Pathology unspecified

1 (2.4%)

  Advanced neoplasm

9 (21.9%)

   Tubulovillous adenoma [TVA]

4 (9.8%)

   Large polyp--TA

3 (7.3%)

   CRC

2 (4.9%)

 Mean age of first neoplastic finding

53.5 ± 11.0

 Number of young-onset first neoplasms

22 (53.7%)

 FOBT positive within 6 months prior (out of all colonoscopies with neoplasms, n = 61)

9 (14.8%)

Registrant Advanced Neoplasms

N = 12

 Pathology for First Advanced Neoplasms

  TVA

5 (41.7%)

  Large polyp--TA

5 (41.7%)

  CRC

2 (16.7%)

 Mean age of first advanced finding

54.1 ± 9.44

 Number of young-onset advanced neoplasms (out of all advanced neoplasms, n = 12)

6 (50.0%)

Registrant Colorectal Cancers

 Mean age of colorectal cancer diagnosis

64.5 ± 5.5

  1. Plus-minus values are means ± SD
  2. Percentages may not add up to 100% due to rounding