Upper gastrointestinal cancer burden in Hebei Province, China: A population-based study

Table 4 Mortality data analysis of upper gastrointestinal cancer via the grey system model in Cixian and Shexian

Year	t	Cixian			Shexian
		Mortality rate	Predicted rate	Error	Mortality rate	Predicted rate	Error
2004	1	113.41			156.08
2005	2	117.74	124.88	-7.13	158.66	160.24	-1.57
2006	3	126.51	129.78	-3.27	150.89	159.62	-8.73
2007	4	123.38	123.73	-0.35	145.89	164.62	-18.73
2008	5	122.51	118.66	3.85	167.40	172.49	-5.09
2009	6	123.59	112.34	11.25	168.63	156.75	11.88
2010	7	99.45	102.87	-3.42	148.73	137.70	11.02
2011	8	114.65	115.50	-0.85	147.39	136.52	10.88
2012	9	112.17	110.93	1.24	138.28	134.65	3.63
2013	10	106.87	106.87	0.00	139.88	139.90	-0.02
2014	11		106.18			141.57
2015	12		104.29			139.64
2016	13		102.42			137.73
2017	14		100.59			135.85
2018	15		98.80			133.99