Table I.

Case age distribution and quality indices of the major sites of cancers in Qidong, 1972–2011.

		Age, years and no. of cases								DCO		MV
Site	ICD-10	0–14	15–34	35–44	45–54	55–64	65–74	75+	Total	No.	%	No.	%	M:I
Oesophagus	C15	1	24	81	392	995	1,538	1,383	4,414	11	0.25	1,533	34.73	0.95
Stomach	C16	2	308	879	1,993	3,716	4,807	3,696	15,401	29	0.19	8,550	55.52	0.89
Colon-rectum	C18–21	2	183	373	749	1,251	1,774	1,703	6,035	2	0.03	4,819	79.85	0.75
Liver	C22	64	2,602	6,819	7,673	5,606	3,612	2,022	28,398	88	0.31	3,797	13.37	0.96
Pancreas	C25	3	42	142	347	732	1,111	902	3,279	7	0.21	774	23.6	0.95
Lung	C33–34	5	128	513	1,695	3,852	5,411	3,736	15,340	41	0.27	1,951	12.72	0.93
Breasta	C50	1	180	761	1,097	720	417	276	3,452	0	0	3,212	93.05	0.51
Cervix	C53	3	62	191	263	281	229	182	1,211	0	0	1,089	89.93	0.72
Bladder	C67	2	22	52	143	345	474	581	1,619	0	0	1,158	71.53	0.68
B and CNS	C70–72	104	189	221	384	377	350	160	1,785	6	0.34	480	26.89	0.9
NHL	C82-85/96	48	133	146	228	337	361	219	1,472	0	0	1,468	99.73	0.85
Leukaemia	C91-95	221	402	242	264	303	328	170	1,930	4	0	1,921	99.53	0.93
All sites	C00-96	538	4,897	11,150	16,633	20,301	22,429	16,832	92,780	212	0.23	37,052	39.94	0.88

^aIncludes 32 cases of male breast cancer. DCO, death certificate only; MV, morphological verification; B and CNS, brain and central nervous system; NHL, non-Hodgkin's lymphoma; ICD, International Classification of Diseases; M:I, mortality: incidence.