Table 2. Cancer incidence before and after 20 years of age among 40 487 offspring of atomic-bomb survivors and controls.

		Age 1–19 years		Age 20+ years
Cancer site	ICD-9a	Male	Female	Male	Female	Total
Solid tumors	140–203, 225	15	9	234	317	575
Digestive	150–159	2	1	149	89	241
Respiratory	160–165	0	1	23	9	33
Female breast	174	0	0	0	88	88
Female genital organ	179–184	0	0	0	71	71
Male genital organ	185–187	1	0	14	0	15
Urinary	188–189	0	0	17	1	18
Brain and nervous	191,192,225	5	3	12	10	30
Thyroid	193	1	1	9	33	44
Other		6	3	10	16	35
Hematopoietic tumors	200–208	16	8	23	21	68
Leukemia	204–208	8	7	9	10	34
Lymphoma	200–202	8	1	14	11	34

^aInternational Classification of Diseases, 9th Revision.