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. 2022 Apr 2;21(4):489–555. doi: 10.1007/s10689-021-00284-8

Table 2.

MSH6 and PMS2 carriers with colonic neoplasia identified

Colonoscopy before age 50 Total
(N = 113)
MSH6
(N = 76)
PMS2
(N = 37)
P
(MSH6 vs. PMS2)
Any neoplastic lesion identified before 50 (including advanced lesions, non-advanced lesions, CRC) 46 (41%) 32 (42%) 14 (38%) 0.69
Any advanced adenoma/advanced serrated lesion identified before 50 7 (6%) 5 (7%) 2 (5%) 0.99
Any CRC identified before 50 4 (4%) 3 (4%) 1 (3%) 0.99
Colonoscopy before age 30

Total

(N = 20)

MSH6

(N = 16)

PMS2

(N = 4)

P

(MSH6 vs. PMS2)

Any neoplastic lesion identified before age 30 (including advanced lesions, non-advanced lesions, CRC) 9 (45%) 7 (44%) 2 (50%) 1.0
Any advanced adenoma/advanced serrated lesion identified before age 30 1 (5%) 1 (6%) 0 0.99
Any CRC identified before age 30 0 0 0 -
Colonoscopy between ages 30–39

Total

(N = 46)

MSH6

(N = 26)

PMS2

(N = 20)

P

(MSH6 vs. PMS2)

Any neoplastic lesion identified between ages 30–39 (including advanced lesions, non-advanced lesions, CRC) 16 (35%) 9 (35%) 7 (35%) 1.0
Any advanced adenoma/advanced serrated lesion identified between ages 30–39 3 (7%) 1 (4%) 2 (10%) 0.57
Any CRC identified between ages 30–39 3 (7%) 2 (8%) 1 (5%) 0.99
Colonoscopy between ages 40–49

Total

(N = 59)

MSH6

(N = 43)

PMS2

(N = 16)

P

(MSH6 vs. PMS2)

Any neoplastic lesion identified between ages 40–49 (including advanced lesions, non-advanced lesions, CRC) 28 (47%) 21 (49%) 7 (44%) 0.78
Any advanced adenoma/advanced serrated lesion identified between ages 40–49 4 (7%) 3 (7%) 1 (6%) 0.99
Any CRC identified between ages 40–49 1 (2%) 1 (2%) 0 0.99