Table 1.

The national (Cusum) detection and incidence rate of Keshan disease in China from 1990 to 2009

Year	KD detection rate (%)	Cusum KD detection rate (%)	Latent KD detection rate (%)	Cusum latent KD detection rate (%)	Chronic KD detection rate (%)	Cusum chronic KD detection rate (%)	KD incidence rate (‰)	Cusum KD incidence rate (‰)	Latent KD incidence rate (‰)	Cusum latent KD incidence rate (‰)	Chronic KD incidence rate (‰)	Cusm chronic KD incidence rate (‰)
1990–1994	4.2	4.2	3.8	3.8	0.4	0.4	2.7	2.7	2.29	2.29	0.4	0.4
1995	1.43	5.63	1.04	4.84	0.39	0.79	0.69	3.39	0.63	2.92	0.06	0.46
1996	1.33	6.96	1.09	5.93	0.24	1.03	0.49	3.88	0.28	3.2	0.21	0.67
1997	4.26	11.22	3.58	9.51	0.68	1.71	9.15	13.03	8.6	11.8	0.55	1.22
1998	4.27	15.49	3.62	13.13	0.65	2.36	0.95	13.98	0.5	12.3	0.45	1.67
1999	4.29	19.78	3.69	16.82	0.59	2.95	5.5	19.48	5.25	17.55	0.25	1.92
2000	5.06	24.84	4.16	20.98	0.89	3.84	2.86	22.34	1.9	19.45	0.9	2.82
2001	5.54	30.38	4.63	25.61	0.91	4.75	5.13	27.47	3.87	23.32	0.87	3.69
2002	5.44	35.82	4.57	30.18	0.87	5.62	3.95	31.42	3.27	26.59	0.68	4.37
2003	2.79	38.61	2.19	32.37	0.6	6.22	1.84	33.26	1.23	27.82	0.61	4.98
2004	4.22	42.83	3.51	35.88	0.71	6.93	1.94	35.2	1.82	29.64	0.11	5.09
2005	4.11	46.94	3.51	39.39	0.6	7.53	0.76	35.96	0.67	30.31	0.09	5.18
2006	2.89	49.83	2.25	41.64	0.6	8.13	0.84	36.8	0.38	30.69	0.08	5.26
2007	3.03	52.86	2.41	44.05	0.62	8.75	4.88	41.68	4.41	35.1	0.49	5.75
2008	2.21	55.07	1.71	45.76	0.5	9.25	2.21	43.89	1.72	36.82	0.49	6.24
2009	2.02	57.09	1.58	47.34	0.44	9.69	3.33	47.22	2.89	39.71	0.44	6.68