Table 2. Ten-year cumulative incidence of second malignancy (Kaplan–Meier estimates).

	n	(%)	95% CI
Gastrointestinal	182	11.5	9.5–13.4
Gynaecologicala	132	8.6	6.9–10.2
Ovary	74	5.0	3.8–6.3
Lung	58	3.7	2.6–4.9
Leukaemia	47	3.3	2.3–4.3
Melanoma	37	2.8	1.8–3.8
Lymphoma	41	2.6	1.7–3.5
Genitourinary	41	2.2	1.4–3.0
Sarcoma	34	2.1	1.3–3.0
Others	25	1.6	0.8–2.3
Thyroid	20	1.4	0.7–2.1
Head and neck	18	1.1	0.5–1.6
Total	709	45.0	41.2–48.7

Abbreviation: CI=confidence interval.

^aCervical and endometrial.