Table 2.

Cumulative incidence of gastric cancer and small intestinal cancer in patients with Lynch syndrome

Age group, yr	Cumulative incidence (%)a (95% CI)
	Gastric cancer		Small intestinal cancer
	Male	Female	Male	Female
≤40	0.31 (0.03–1.66)	0.17 (0.02–0.91)	0.0 (0.0–0.0)	0.0 (0.0–0.0)
≤50	0.71 (0.14–2.39)	0.17 (0.02–0.91)	0.42 (0.04–2.18)	0.21 (0.02–1.12)
≤60	2.47 (0.90–5.47)	0.42 (0.08–1.46)	2.62 (0.97–5.71)	0.21 (0.02–1.12)
≤70	3.36 (1.31–7.05)	0.80 (0.21–2.31)	5.49 (2.43–10.37)	0.21 (0.02–1.12)
≤80	7.26 (1.80–18.03)	3.43 (0.50–11.71)	7.28 (3.19–13.63)	2.21 (0.23–9.19)
Lifetime	7.26 (1.80–18.03)	3.43 (0.50–11.71)	7.28 (3.19–13.63)	2.21 (0.23–9.19)

CI, confidence internal.

^aDerived from cumulative incidence function, with competing risk.