Table 1. Specificity of injury cause and quality of sequencing of multiple causes of death from unintentional injury among Americans aged 65 years and older, 1999–2016.

Year	Population	Age-standardized mortality per 100 000 persons
		All unintentional injury	Unspecified unintentional injury	Cause specificity indicator, %	Unintentional injury selected as underlying cause	Cause selection indicator, %
1999	34 797 841	185.0	48.1	74	93.6	51
2000	34 991 753	177.3	44.5	75	89.2	50
2001	35 290 291	178.6	45.4	75	92.6	52
2002	35 522 207	178.0	42.8	76	94.4	53
2003	35 863 529	177.2	41.3	77	95.0	54
2004	36 203 319	174.4	37.8	78	95.8	55
2005	36 649 798	178.7	36.7	79	98.7	55
2006	37 164 107	172.8	36.1	79	96.8	56
2007	37 825 711	170.8	34.0	80	98.9	58
2008	38 777 621	169.0	32.2	81	99.5	59
2009	39 623 175	161.1	28.0	83	96.9	60
2010	40 267 984	165.0	29.1	82	100.6	61
2011	41 394 141	165.3	28.3	83	102.2	62
2012	43 145 356	163.2	27.1	83	102.6	63
2013	44 704 074	162.2	26.0	84	102.6	63
2014	46 243 211	163.9	26.1	84	105.0	64
2015	47 760 852	169.3	27.2	84	108.9	64
2016	49 244 195	169.1	26.1	85	109.8	65

Notes: We extracted age-standardized mortality data from of the United States Centers for Disease Control and Prevention online databases;² causes of death are recorded by International Statistical Classification of Diseases and Related Health Problems (10th revision) codes.¹⁶ All unintentional injury mortality is the total mortality from all causes recorded in multiple causes of death codes. The cause specificity indicator is the proportion of unintentional injury mortality with specific causes recorded out of all unintentional injury mortality recorded in multiple causes of death codes. The cause selection indicator is the proportion of unintentional injury mortality recorded in underlying cause of death codes selected from unintentional injury mortality recorded in multiple causes of death codes.