Table 3.

Estimated ORs (95% CIs) by age groups for childhood cancers associated with residence at diagnosis in agriculturally intense counties in the U.S. NAACCR, 1995–2001, ICCC major sites and selected subgroups.

	Percent cropland
	Medium		High
Cancer type	No.	OR (95% CI)	No.	OR (95% CI
All cancers	4,476	1.0 (1.0–1.0)	1,598	1.0 (1.0–1.1)
Leukemias	1,357	1.0 (0.9–1.1)	470	1.2 (1.1–1.3)
Lymphoid leukemias	1,074	1.0 (0.9–1.1)	387	1.3 (1.1–1.4)
Acute myeloid leukemias	207	1.2 (1.1–1.4)	66	1.8 (1.4–2.3)
Lymphomas and reticuloendothelial	463	1.1 (1.0–1.2)	155	1.4 (1.2–1.7)
Hodgkin lymphomas	189	1.3 (1.1–1.5)	58	2.1 (1.6–2.7)
Non-Hodgkin lymphomas	166	1.1 (0.9–1.3)	60	2.1 (1.6–2.8)
Central nervous system	975	1.1 (1.0–1.1)	348	1.3 (1.1–1.4)
Astrocytomas	475	1.1 (1.0–1.2)	184	1.5 (1.3–1.7)
Primitive neuroectodermal tumor	222	1.2 (1.0–1.4)	69	1.9 (1.5–2.4)
Sympathetic nervous system tumors	349	1.2 (1.0–1.3)	121	1.7 (1.4–2.1)
Neuroblastomas	336	1.2 (1.0–1.3)	118	1.8 (1.5–2.1)
Retinoblastoma	97	1.2 (1.0–1.5)	45	2.6 (1.9–3.5)
Renal tumors	269	1.3 (1.1–1.5)	102	2.1 (1.7–2.6)
Wilms’ tumor	253	1.3 (1.1–1.5)	96	2.1 (1.7–2.7)
Renal carcinoma	16	2.3 (1.3–4.2)	5	3.3 (1.3–8.3)
Hepatic tumors	63	1.6 (1.2–2.2)	23	3.3 (2.1–5.0)
Hepatoblastoma	54	1.7 (1.3–2.3)	21	4.0 (2.5–6.3)
Malignant bone tumors	218	1.2 (1.1–1.4)	84	2.3 (1.8–2.9)
Osteosarcoma	110	1.3 (1.0–1.6)	44	2.7 (2.0–3.6)
Ewing’s sarcoma	91	1.8 (1.4–2.3)	33	4.3 (3.0–6.2)
Soft-tissue sarcomas	344	1.3 (1.1–1.4)	109	1.7 (1.4–2.0)
Rhabdomyosarcomas	181	1.5 (1.2–1.7)	59	2.5 (1.9–3.3)
Germ cell, etc.a	130	1.3 (1.1–1.6)	57	2.3 (1.8–3.1)
Carcinomas and other	164	1.1 (1.0–1.3)	77	2.2 (1.8–2.8)
Thyroid carcinoma	55	1.8 (1.3–2.4)	26	3.0 (2.0–4.6)
Malignant melanoma	41	1.6 (1.1–2.2)	25	4.6 (3.0–7.0)
Other and unspecified	25	2.9 (1.9–4.6)	7	11.2 (5.1–24.4)

^aGerm cell, trophoblastic, and other gonadal neoplasms.