Table 2. Crude and age-standardized mortality (1/100,000) of Alzheimer 's disease and other forms of dementia in different genders, China, 2009–2015.

Year	male		female		χ2	P
	mortality	age-standardized	mortality	age-standardized
2009	2.84	4.47	3.51	4.19	3.51	0.061
2010	3.06	5.23	4.18	5.30	0.17	0.680
2011	3.31	5.34	4.17	4.65	18.11	<0.001
2012	3.55	4.00	4.65	3.71	4.30	0.038
2013	4.05	4.12	5.35	3.95	4.07	0.044
2014	3.96	3.83	5.11	3.59	9.53	0.002
2015	4.11	3.97	5.37	3.80	4.54	0.033
total	3.79	4.08	4.94	3.87	29.50	<0.001
χ2	—	167.085	—	145.174	—	—
P	—	<0.001	—	<0.001	—	—