Table 2.

Standardized Mortality Ratios, observed, and expected number of deaths for veterans with a nonfatal index overdose for all causes and selected causes, 2011-2015.

	Nonfatal OD		US Age- adjusted rates^a Expected number of deaths ^b	Standardized Mortality Rate Ratio (95 % CI)
Cause of death	No. of deaths	Crude mortality rate	US Age- adjusted rates^a Expected number of deaths ^b	SMR ^b	95 % CI
Opioid overdose	59	15.05	0.91	64.73	(48.29–81.38)
External Cause of death	69	17.60	4.19	16.47	(12.58–20.35)
Suicide	39	9.95	1.34	29.01	(19.97–38.24)
Homicide	5	1.28	0.54	9.25	(1.14–17.38)
Accidents	25	6.38	2.30	10.85	(6.61–15.13)
Substance-related	223	56.88	1.96	113.96	(98.84–128.71)
Drug-related	169	43.10	1.21	139.25	(118.62–160.73)
Alcohol-related	54	13.77	0.74	72.65	(53.51–92.44)
Infectious	55	14.03	1.65	33.36	(24.52–42.14)
Viral hepatitis	24	6.12	0.22	107.39	(65.45–152.74)
HIV	8	2.04	0.23	34.88	(10.68–58.89)
Circulatory system	388	98.96	15.27	25.41	(22.88–27.94)
Respiratory system	191	48.72	5.40	35.40	(30.35–40.39)
Influenza & pneumonia	23	5.87	0.94	24.45	(14.47–34.47)
Chronic respiratory disease	139	35.45	3.35	41.48	(34.59–48.39)
Digestive system	109	27.80	2.41	45.15	(36.74–53.72)
Cirrhosis & alcoholic liver disease	70	17.85	1.07	65.29	(50.09–80.75)
Cancer	280	71.42	15.29	18.32	(16.17–20.46)
Lung & bronchus	80	20.40	4.17	19.20	(14.98–23.39)
Liver & intrahepatic bile duct	43	10.97	0.63	68.23	(47.85–88.65)
Digestive system	42	10.71	3.14	13.36	(9.33–17.42)
Lymphoma & leukemia	9	2.30	1.06	8.47	(2.94–14.04)
Other cancers	106	27.04	6.14	17.27	(13.98–20.55)
Any type of death	1453	370.59	55.41	26.22	(24.87–27.57)

Abbreviations: No, Number; CI, Confidence Interval; SMR, Standardized Mortality Rate Ratio.

Mortality for US population was from the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research data (CDC WONDER).

Mortality rates and expected counts is by using age-adjusted mortality rates among 15–84 year olds.