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. Author manuscript; available in PMC: 2009 May 29.
Published in final edited form as: Epigenetics. 2009 Feb 27;4(2):114–118. doi: 10.4161/epi.4.2.7954

Table 2.

Prevalence of IGF2 imprinting status according to specified age categories

Age strata
Years		 All subjectsa (N = 400) No colorectal neoplasia Sb
(N = 210)		 Colorectal neoplasiac
(N = 190)
Normal
N = 315
N (%)		 LOI
N = 85
N (%)		 Normal
N = 179
N (%)		 LOI
N = 31
N (%)		 Normal
N = 136
N (%)		 LOI
N = 54
N (%)
15–21 5 (71.4) 2 (28.6) 4 (66.7) 2 (33.3) 1 (100.0) 0 (0.0)
22–29 4 (80.0) 1 (20.0) 3 (75.0) 1 (25.0) 1 (100.0) 0 (0.0)
30–39 12 (92.3) 1 (7.7) 9 (100.0) 0 (0.0) 3 (75.0) 1 (25.0)
40–49 38 (74.5) 13 (25.5) 23 (85.2) 4 (14.8) 15 (62.5) 9 (37.5)
50–59 79 (79.8) 20 (20.2) 46 (83.6) 9 (16.4) 33 (75.0) 11 (25.0)
60–69 88 (73.3) 32 (26.7) 55 (83.3) 11 (16.7) 33 (61.1) 21 (38.9)
≥70 89 (84.8) 16 (15.2) 39 (90.7) 4 (9.3) 50 (80.7) 12 (19.3)

Normal, normal imprinting; LOI, loss of imprinting; p values for the trend

a

p = 0.34,

b

p = 0.49,

c

p = 0.17.