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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: Gastroenterology. 2020 Mar 14;159(1):129–138.e9. doi: 10.1053/j.gastro.2020.03.016

Table 3.

30-year absolute risk estimates of colorectal cancer for 50-year-old men and women

Subgroup Cases n(%)/Controls n(%) 30 Year Risk, % (95% CI)
Men Women Men Women
No colonoscopy
Low genetic risk
  Unfavourable lifestyle 164(40)/88(26) 40(15)/26(12) 6.2 (5.4–7.1) 4.9 (3.9–6.2)
  Intermediate lifestyle 157(38)/123(36) 101 (38)/53(24) 4.9 (4.3–5.6) 3.6 (3.0–4.3)
  Favourable lifestyle 87(21)/134(39) 123(47)/143(64) 3.5 (3.0–4.0) 2.5 (2.1–2.9)
Intermediate genetic risk
  Unfavourable lifestyle 260(41)/97(30) 76(21)/20(9) 9.4 (8.3–10.7) 7.1 (5.7–8.8)
  Intermediate lifestyle 216(34)/120(37) 131(36)/78(35) 7.4 (6.5–8.3) 5.2 (4.4–6.1)
  Favourable lifestyle 153(24)/108(33) 156(43)/126(56) 5.3 (4.7–6.1) 3.6 (3.1–4.2)
High genetic risk
  Unfavourable lifestyle 341(40)/115(36) 118(21)/27(13) 13.4 (11.8–15.1) 10.6 (8.6–13.1)
  Intermediate lifestyle 302(35)/105(33) 199(35)/57(28) 10.6 (9.4–11.9) 7.8 (6.7–9.1)
  Favourable lifestyle 208(24)/99(31) 248(44)/119(59) 7.6 (6.7–8.7) 5.5 (4.8–6.3)
Colonoscopy
Low genetic risk
  Unfavourable lifestyle 53(36)/80(23) 7(9)/21(11) 2.1 (1.9–2.6) 1.9 (1.5–2.4)
  Intermediate lifestyle 59(40)/145(41) 33(40)/65(34) 1.7 (1.5–2.0) 1.4 (1.1–1.7)
  Favourable lifestyle 35(24)/129(36) 42(51)/107(55) 1.2 (1.0–1.4) 0.9 (0.8–1.1)
Intermediate genetic risk
  Unfavourable lifestyle 75(34)/110(29) 23(15)/26(12) 3.3 (2.9–3.1) 2.7 (2.2–3.4)
  Intermediate lifestyle 80(36)/126(34) 60(28)/60(28) 2.6 (2.3–3.0) 1.9 (1.7–2.4)
  Favourable lifestyle 67(30)/138(37) 88(57)/129(60) 1.9 (1.6–2.1) 1.4 (1.2–1.6)
High genetic risk
  Unfavourable lifestyle 120(38)/100(29) 44(21)/22(10) 4.8 (4.2–5.5) 4.2 (3.3–5.2)
  Intermediate lifestyle 117(36)/127(37) 66(32)/70(32) 3.8 (3.3–4.3) 3.0 (2.6–3.6)
  Favourable lifestyle 90(28)7118(34) 98(47)7127(58) 2.6 (2.3–3.1) 2.1 (1.8–2.4)

Abbreviations: CI, confidence interval