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Clinical Research Study| Volume 133, ISSUE 10, P1162-1167.e1, October 2020

Lifetime Risk of Death From Firearm Injuries, Drug Overdoses, and Motor Vehicle Accidents in the United States

  • Ashwini R. Sehgal
    Correspondence
    Requests for reprints should be addressed to Ashwini R. Sehgal, MD, Center for Reducing Health Disparities, Case Western Reserve University, 2500 MetroHealth Medical Center, Cleveland, OH, 44109.
    Affiliations
    Center for Reducing Health Disparities, Case Western Reserve University, Cleveland, Ohio
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      Abstract

      Background

      News media and policy makers frequently discuss deaths from firearms, drug overdoses, and motor vehicle accidents. However, this information is generally presented as absolute numbers or annual rates. Cumulative lifetime risk may be an additional useful metric for understanding the impact of these causes of death.

      Methods

      Data on all-cause firearm, drug overdose, and motor vehicle accident deaths were obtained from the US Centers for Disease Control and Prevention (CDC) for the year 2018. Age-specific death rates were used to estimate the cumulative risk of firearm, drug overdose, and motor vehicle accident deaths from birth to age 85 after accounting for other causes of death.

      Results

      The lifetime risk of death from firearms, drug overdoses, and motor vehicle accidents was 0.93% (95% confidence interval [CI], 0.92%-0.94%), 1.52% (95% CI, 1.51%-1.53%), and 0.92% (95% CI, 0.91%-0.93%), respectively. Black males had a 2.61% (95% CI, 2.55%-2.66%) lifetime risk of firearm death, indicating that 1 out of 38 black males will die from firearms if current death rates persist. Residents of West Virginia had a 3.54% lifetime risk of drug overdose death, equivalent to 1 out of every 28 residents dying from overdoses.

      Conclusions

      The lifetime risk of death from firearms, drug overdoses, and motor vehicle accidents is substantial and varies greatly across demographic subgroups and states.

      Keywords

      Clinical Significance
      • There is a substantial lifetime risk of death from firearms, drug overdoses, and motor vehicle accidents in the United States.
      • This risk varies greatly across demographic groups and states.
      • Health providers are uniquely positioned to advocate for measures to reduce these deaths.

      Introduction

      News media and policy makers frequently discuss deaths from firearms, drug overdoses, and motor vehicle accidents. Numerical details about these 3 causes of death are usually presented in news stories and in government reports as absolute numbers (eg, 67,000 drug overdose deaths last year) or as annual rates (eg, 12 motor vehicle accident deaths/100,000 population). But people often have difficulty appreciating the magnitude of both large numbers (such as tens of thousands of deaths) and small numbers (such as a death rate of 0.00012).
      • Landy D
      • Silbert N
      • Goldin A
      Estimating large numbers.
      ,
      • Cohen DJ
      • Ferrell JM
      • Johnson N
      What very small numbers mean.
      Cumulative lifetime risk may be a useful metric for understanding the impact of these causes of death.
      • Sasieni PD
      • Adams J
      Standardized lifetime risk.
      Moreover, previous research indicates that patients prefer to receive cumulative risk estimates, perceive such estimates as indicating higher risk, and are more willing to receive treatment when presented with the lifetime risk of a disease.
      • Fortin JM
      • Hirota LK
      • Bond BE
      • O'Connor AM
      • Col NF
      Identifying patient preferences for communicating risk estimates: a descriptive pilot study.
      ,
      • Navar AM
      • Wang TY
      • Mi X
      • et al.
      Influence of cardiovascular risk communication tools and presentation formats on patient perceptions and preferences.
      A study based on 1992-1994 data estimated lifetime risk of death from motor vehicle accidents, but such deaths have decreased since then.
      • Merrill RM
      • Kessler LG
      • Udler JM
      • Rasband GC
      • Feuer EJ
      Comparison of risk estimates for selected diseases and causes of death.
      ,
      • Kochanek KD
      • Murphy SL
      • Xu J
      • Arias E
      Deaths: final data for 2017.
      In addition, the lifetime risk of deaths from firearms and drug overdoses have not previously been quantified. As a result, this study sought to determine the lifetime risk of death from these 3 causes for the United States as a whole; for race, ethnicity, and gender subgroups; and for individual states.

      Methods

      Data

      Data on population size and all-cause, firearm, drug overdose, and motor vehicle accident deaths were obtained from the Centers for Disease Control and Prevention's Wide-Ranging Online Data for Epidemiologic Research (CDC WONDER) system for the year 2018.

      Centers for Disease Control and Prevention. Underlying cause of death. Available at:https://wonder.cdc.gov/Accessed March 14, 2020.

      As defined in CDC WONDER, firearm deaths correspond to the International Statistical Classification of Diseases (ICD-10) codes U01.4, W32-W34, X72-X74, X93-X95, Y22-Y24, and Y35.0, whereas motor vehicle accident deaths (including deaths of pedestrians and cyclists involving motor vehicles) correspond to codes V02-V04, V09.0, V09.2, V12-V14, V19.0-V19.2, V19.4-V19.6, V20-V79, V80.3-80.5, V81.0-81.1, V82.0-V82.1, V83-V86, V87.0-V87.8, V88.0-V88.8, V89.0, and V89.2.

      Centers for Disease Control and Prevention. Underlying cause of death. Available at:https://wonder.cdc.gov/Accessed March 14, 2020.

      As defined by the National Institute on Drug Abuse, drug overdose deaths correspond to codes X40-X44, X60-X64, X85, and Y10-Y14.

      National Institute on Drug Abuse. Overdose death rates. Available at:https://www.drugabuse.gov/related-topics/trends-statistics/overdose-death-ratesAccessed March 14, 2020.

      Population size and deaths were categorized into 5-year age groups except for the 2 youngest age groups, which were categorized as <1 year and 1-4 years. These data were obtained for the United States as a whole; for race, ethnicity, and gender subgroups; and for individual states. The first 4 columns in the Appendix available online display the data obtained for the United States for all-cause and firearm deaths. All analyses are based on the underlying cause of death (ie, the disease or injury that led directly to death based on entries by a physician on a death certificate).

      Centers for Disease Control and Prevention. Underlying cause of death. Available at:https://wonder.cdc.gov/Accessed March 14, 2020.

      Statistical Analysis

      Because it is impractical to follow a cohort of individuals over an entire lifetime to determine cumulative risk, lifetime risk was estimated using a life-table approach.
      • Chiang CL
      Introduction to Stochastic Processes in Biostatistics.
      ,
      • Feuer EJ
      • Wun LM
      • Boring CC
      • Flanders WD
      • Timmel MJ
      • Tong T
      The lifetime risk of developing breast cancer.
      A hypothetical cohort of 100,000 individuals was followed from birth to the end of age 84 using a competing risks framework (see Appendix). For each age group, all-cause and firearm deaths were estimated by multiplying the population size at the beginning of the interval with 1) actual population all-cause and firearm death rates and 2) the number of years in the interval. For example, the number of all-cause deaths expected during the 1- to 4-age interval is 99,442.2 × 24.0/100,000 × 4 = 95.5. Similarly, the number of firearm deaths expected is 99,442.2 × 0.6/100,000 × 4 = 2.4. The number of all-cause deaths in the interval was subtracted from the population at the beginning of the interval to obtain the population alive at the beginning of the next interval; in this case, 99,442.2 – 95.5 = 99,346.7. This process was repeated until the end of age 84, and the total firearm deaths across all years were summed to obtain lifetime risk. Lifetime risk is presented as both a cumulative probability (in this case, 0.93%) and as the inverse of the risk, calculated as 100/risk (ie, 1 out of 108 individuals would be expected to die from firearms). A similar approach was used to determine lifetime risk of death from drug overdoses and motor vehicle accidents. Age 85+ was not included because population sizes and cause-specific number of deaths are not available via CDC WONDER for 5-year intervals beyond age 85.
      A similar approach was used to analyze data for race, ethnicity, and gender subgroups and for each state. Confidence intervals for lifetime risks were estimated using a bootstrap approach. For example, each of the 15,962,067 Americans ages 1-4 years who were alive in 2018 may be categorized as 1) dead from any cause or 2) alive at the end of the year (see Appendix). An all-cause bootstrap sample was created by sampling 15,962,067 individuals from this population with replacement (so the same person may be chosen more than once). This process was performed separately for each age group and then aggregated across all age groups. Similarly, all Americans may be categorized as 1) dead from firearms or 2) not dead from firearms at the end of 2018. A firearm bootstrap sample was created from this population. These 2 bootstrap samples were used to estimate all-cause and firearm death rates and then life-table-based lifetime risk. This process was repeated 1000 times and the 2.5 and 97.5 percentile values of the distribution of calculated lifetime risks were used as confidence intervals. A similar process was used for estimating other confidence intervals. All statistical analyses were performed using JMP version 14.0 (SAS Institute, Cary, North Carolina).

      Results

      In 2018, there were a total of 2,839,205 deaths in the United States, including 39,740 from firearms, 67,367 from drug overdoses, and 39,404 from motor vehicle accidents (Table 1). Black males had the highest death rates from firearms, black and white males had the highest death rates from drug overdoses, and Native American males had the highest death rates from motor vehicle accidents. Asian American females had the lowest death rate for all 3 specific causes.
      Table 1Deaths in the United States in 2018
      Number of Deaths

      (Rate per 100,000)
      GroupPopulation SizeAll-CauseFirearmsDrug OverdosesMotor Vehicle Accidents
      All individuals327,167,4342,839,205

      (867.8)
      39,740

      (12.1)
      67,367

      (20.6)
      39,404

      (12.0)
      Asian American females11,244,82737,214

      (330.9)
      118

      (1.0)
      246

      (2.2)
      387

      (3.4)
      Asian American males10,356,23739,663

      (383.0)
      523

      (5.1)
      618

      (6.0)
      644

      (6.2)
      Black females24,045,602166,783

      (693.6)
      1178

      (4.9)
      2709

      (11.3)
      1736

      (7.2)
      Black males22,217,244182,070

      (819.5)
      8781

      (39.5)
      6734

      (30.3)
      4628

      (20.8)
      Hispanic females29,637,56191,674

      (309.3)
      497

      (1.7)
      1487

      (5.0)
      1564

      (5.3)
      Hispanic males30,234,185113,045

      (373.9)
      3521

      (11.6)
      4845

      (16.0)
      4559

      (15.1)
      Native American females2,363,2989129

      (386.3)
      78

      (3.3)
      287

      (12.1)
      230

      (9.7)
      Native American males2,375,99011,639

      (489.9)
      399

      (16.8)
      493

      (20.7)
      540

      (22.7)
      White females128,385,0281,167,610

      (909.5)
      4411

      (3.4)
      19,184

      (14.9)
      9098

      (7.1)
      White males126,179,2081,225,097

      (970.9)
      24,252

      (19.2)
      37,096

      (29.4)
      22,141

      (17.5)
      For the overall population, the lifetime risk of death from firearms, drug overdoses, and motor vehicles was 0.93%, 1.52%, and 0.92%, respectively (Table 2). Black males had a 2.61% lifetime risk of death from firearms, indicating that 1 out of 38 black males will die from firearms if current death rates persist. By contrast, Asian American females had a 0.08% lifetime risk of death from firearms. White males had a 2.13% lifetime risk of death from drug overdoses, indicating that 1 out of 47 white males would be expected to die from drug overdoses. Native American males had a 1.75% lifetime risk of death from motor vehicle accidents.
      Table 2Lifetime Risk of Death From Firearms, Drug Overdoses, and Motor Vehicle Accidents.
      For example, the lifetime risk of death from drug overdose in the United States is 1.52%, indicating that 1 out of every 66 Americans will die from drug overdoses if current death rates persist.
      Lifetime Risk (95% Confidence Interval)

      100/Lifetime Risk
      GroupFirearmsDrug OverdosesMotor Vehicle Accidents
      All individuals0.93% (0.92%-0.94%)

      108
      1.52% (1.51%-1.53%)

      66
      0.92% (0.91%-0.93%)

      109
      Asian American females0.08% (0.07%-0.10%)

      1225
      0.16% (0.14%-0.18%)

      617
      0.34% (0.31%-0.39%)

      291
      Asian American males0.38% (0.35%-0.42%)

      260
      0.43% (0.40%-0.47%)

      231
      0.56% (0.52%-0.61%)

      178
      Black females0.35% (0.33%-0.37%)

      287
      0.85% (0.81%-0.88%)

      118
      0.56% (0.53%-0.59%)

      178
      Black males2.61% (2.55%-2.66%)

      38
      2.29% (2.24%-2.35%)

      44
      1.54% (1.50%-1.58%)

      65
      Hispanic females0.12% (0.11%-0.14%)

      802
      0.41% (0.39%-0.43%)

      245
      0.48% (0.46%-0.51%)

      207
      Hispanic males0.87% (0.84%-0.90%)

      115
      1.24% (1.20%-1.28%)

      81
      1.26% (1.22%-1.31%)

      79
      Native American females0.24% (0.19%-0.30%)

      411
      0.94% (0.84%-1.06%)

      106
      0.79% (0.67%-0.91%)

      127
      Native American males1.26% (1.13%-1.40%)

      79
      1.52% (1.39%-1.66%)

      66
      1.75% (1.60%-1.91%)

      57
      White females0.27% (0.26%-0.27%)

      374
      1.14% (1.12%-1.16%)

      88
      0.55% (0.54%-0.56%)

      181
      White males1.44% (1.42%-1.46%)

      69
      2.13% (2.11%-2.15%)

      47
      1.30% (1.29%-1.32%)

      77
      low asterisk For example, the lifetime risk of death from drug overdose in the United States is 1.52%, indicating that 1 out of every 66 Americans will die from drug overdoses if current death rates persist.
      Lifetime risks also varied greatly across states, with some having especially striking overdose risks (Table 3). For example, residents of West Virginia had a 3.54% lifetime risk of death from overdoses, indicating that 1 out of 28 would be expected to die from overdoses. Residents of Mississippi had the highest lifetime risks for firearm deaths and motor vehicle accidents. The states with the lowest lifetime risks of death from firearms, drug overdoses, and motor vehicle accidents were Rhode Island, South Dakota, and New York, respectively.
      Table 3Lifetime Risk of Death From Firearms, Drug Overdoses, and Motor Vehicle Accidents by State.
      Lifetime Risk (100/Lifetime Risk)
      FirearmsDrug OverdosesMotor Vehicle

      Accidents
      Alabama1.59% (63)1.16% (86)1.62% (62)
      Alaska1.57% (64)1.06% (94)0.94% (106)
      Arizona1.23% (81)1.77% (57)1.11% (90)
      Arkansas1.43% (70)1.10% (91)1.36% (74)
      California0.61% (164)1.03% (97)0.83% (121)
      Colorado1.19% (84)1.28% (78)0.94% (107)
      Connecticut0.40% (252)2.23% (45)0.65% (154)
      Delaware0.87% (115)3.09% (32)0.92% (109)
      District of Columbia1.16% (86)2.99% (33)0.46% (219)
      Florida1.02% (98)1.64% (61)1.13% (88)
      Georgia1.21% (83)0.98% (102)1.12% (90)
      Hawaii0.34% (298)1.14% (88)0.65% (154)
      Idaho1.33% (75)1.10% (91)1.14% (88)
      Illinois0.82% (122)1.56% (64)0.73% (138)
      Indiana1.11% (90)1.82% (55)0.98% (102)
      Iowa0.70% (143)0.70% (142)0.89% (112)
      Kansas1.11% (90)0.91% (110)1.11% (90)
      Kentucky1.26% (79)2.16% (46)1.27% (79)
      Louisiana1.56% (64)1.79% (56)1.29% (77)
      Maine0.89% (113)1.96% (51)0.88% (113)
      Maryland0.88% (113)2.76% (36)0.67% (150)
      Massachusetts0.28% (351)2.36% (42)0.44% (225)
      Michigan0.98% (102)1.94% (52)0.76% (132)
      Minnesota0.62% (161)0.86% (117)0.70% (142)
      Mississippi1.69% (59)0.77% (131)1.74% (57)
      Missouri1.60% (62)1.94% (51)1.18% (85)
      Montana1.36% (73)0.91% (110)1.30% (77)
      Nebraska0.75% (134)0.55% (183)1.01% (99)
      Nevada1.42% (70)1.67% (60)0.90% (111)
      New Hampshire0.85% (118)2.52% (40)0.84% (119)
      New Jersey0.37% (272)2.39% (42)0.53% (189)
      New Mexico1.59% (63)1.93% (52)1.42% (70)
      New York0.32% (312)1.39% (72)0.42% (239)
      North Carolina1.04% (96)1.60% (63)1.16% (86)
      North Dakota0.87% (115)0.73% (137)1.06% (95)
      Ohio0.99% (101)2.53% (39)0.78% (129)
      Oklahoma1.27% (79)1.36% (74)1.35% (74)
      Oregon0.96% (104)0.96% (104)0.90% (111)
      Pennsylvania0.96% (104)2.57% (39)0.75% (133)
      Rhode Island0.27% (370)2.22% (45)0.49% (202)
      South Carolina1.31% (77)1.63% (61)1.53% (65)
      South Dakota1.05% (95)0.51% (196)1.40% (71)
      Tennessee1.33% (75)1.95% (51)1.22% (82)
      Texas0.96% (104)0.80% (125)1.04% (96)
      Utah1.05% (95)1.62% (62)0.69% (145)
      Vermont0.97% (103)1.87% (53)0.89% (112)
      Virginia0.94% (107)1.24% (81)0.82% (122)
      Washington0.84% (119)1.14% (88)0.71% (142)
      West Virginia1.35% (74)3.54% (28)1.32% (76)
      Wisconsin0.80% (126)1.40% (72)0.82% (121)
      Wyoming1.65% (61)0.90% (111)1.30% (77)

      Discussion

      The lifetime risk of death from firearms, drug overdoses, and motor vehicle accidents is substantial and varies considerably by race, ethnicity, gender, and location. For instance, black males have a 33-fold higher risk of death from firearms compared with Asian American females, and white males have 13-fold higher risk of death from drug overdoses compared with Asian American females. Residents of West Virginia, Delaware, and the District of Columbia have a lifetime risk of drug overdoses that is twice the national average. Strengths of the study include use of the most recently available national data, mortality figures that are based on official death certificates, analyses that account for competing causes of death, and precise risk estimates with narrow confidence intervals based on a large population.
      These results are consistent with previous research on demographic differences in death rates from firearms, drug overdoses, and motor vehicle accidents.
      • Fowler KA
      • Dahlberg LL
      • Haileyesus T
      • Annest JL
      Firearm injuries in the United States.
      • Riddell CA
      • Harper S
      • Cerdá M
      • Kaufman JS
      Comparison of rates of firearm and nonfirearm homicide and suicide in black and white non-Hispanic men, by U.S. state.
      • Mack KA
      Centers for Disease Control and Prevention (CDC). Drug-induced deaths - United States, 1999-2010.
      • Rockett IR
      • Regier MD
      • Kapusta ND
      • et al.
      Leading causes of unintentional and intentional injury mortality: United States, 2000-2009.
      For example, a study using 2010-2012 data found that males were 6 times more likely than females to die from firearms.
      • Fowler KA
      • Dahlberg LL
      • Haileyesus T
      • Annest JL
      Firearm injuries in the United States.
      A study based on 1992-1994 data estimated lifetime risk of death from motor vehicle accidents at 0.69%-1.69% for various race and gender subgroups.
      • Merrill RM
      • Kessler LG
      • Udler JM
      • Rasband GC
      • Feuer EJ
      Comparison of risk estimates for selected diseases and causes of death.
      However, motor vehicle accident death rates have decreased by 20% over the last 2 decades.

      Centers for Disease Control and Prevention. Underlying cause of death. Available at:https://wonder.cdc.gov/Accessed March 14, 2020.

      By contrast, firearm deaths have increased by 20% and drug overdose deaths have increased more than 300% over the same time period.

      Centers for Disease Control and Prevention. Underlying cause of death. Available at:https://wonder.cdc.gov/Accessed March 14, 2020.

      ,
      • Wintemute GJ
      The epidemiology of firearm violence in the twenty-first century United States.
      Other researchers have used similar methods to determine lifetime risk of several medical conditions.
      • Feuer EJ
      • Wun LM
      • Boring CC
      • Flanders WD
      • Timmel MJ
      • Tong T
      The lifetime risk of developing breast cancer.
      ,
      • Kiberd BA
      • Clase CM
      Cumulative risk for developing end-stage renal disease in the US population.
      • Cummings SR
      • Black DM
      • Rubin SM
      Lifetime risks of hip, Colles', or vertebral fracture and coronary heart disease among white postmenopausal women.
      • Vasan RS
      • Beiser A
      • Seshadri S
      • et al.
      Residual lifetime risk for developing hypertension in middle-aged women and men: The Framingham Heart Study.
      • Narayan KM
      • Boyle JP
      • Thompson TJ
      • Sorensen SW
      • Williamson DF
      Lifetime risk for diabetes mellitus in the United States.
      • Carone M
      • Asgharian M
      • Jewell NP
      Estimating the lifetime risk of dementia in the Canadian elderly population using cross-sectional cohort survival data.
      • Lloyd-Jones DM
      • Larson MG
      • Beiser A
      • Levy D
      Lifetime risk of developing coronary heart disease.
      • Licher S
      • Heshmatollah A
      • van der Willik KD
      • et al.
      Lifetime risk and multimorbidity of non-communicable diseases and disease-free life expectancy in the general population: a population-based cohort study.
      For example, the lifetime risk of developing end-stage renal disease is estimated to be 2%-8%, stroke is 21%-25%, and diabetes is 33%-39%.
      • Kiberd BA
      • Clase CM
      Cumulative risk for developing end-stage renal disease in the US population.
      ,
      • Narayan KM
      • Boyle JP
      • Thompson TJ
      • Sorensen SW
      • Williamson DF
      Lifetime risk for diabetes mellitus in the United States.
      ,
      • Licher S
      • Heshmatollah A
      • van der Willik KD
      • et al.
      Lifetime risk and multimorbidity of non-communicable diseases and disease-free life expectancy in the general population: a population-based cohort study.
      Although absolute numbers of deaths or annual death rates describe mortality over a short time period, lifetime risk may be a useful method to convey information on long-term consequences. Lifetime risk estimates may help both the public and policy makers to better appreciate the impact of deaths from the 3 causes. Policy makers can deploy a variety of measures to reduce population exposure to firearms, potentially lethal drugs, and unsafe vehicle operation. It is worth noting that there are other important impacts besides death, including nonfatal injuries, economic costs, and effects on victims’ relatives. For example, nonfatal firearm injuries, which often result in hospitalization and disability, are twice as frequent as fatal ones.
      • Fowler KA
      • Dahlberg LL
      • Haileyesus T
      • Annest JL
      Firearm injuries in the United States.
      A recent economic analysis estimated that the economic burden of prescription opioid overdose, abuse, and dependence exacts a toll of $78.5 billion annually in health care costs, criminal justice costs, and lost productivity.
      • Florence CS
      • Zhou C
      • Luo F
      • Xu L
      The economic burden of prescription opioid overdose, abuse, and dependence in the United States, 2013.
      A study of families of motor vehicle accident victims found that many experienced prolonged depression and poor functioning.
      • Lehman DR
      • Wortman CB
      • Williams AF
      Long-term effects of losing a spouse or child in a motor vehicle crash.
      These findings also have important implications for health providers and researchers. Health providers are uniquely positioned to advocate for measures likely to reduce deaths. They can ask patients about the presence of firearms in the home, review safe storage practices, and screen for depression or a previous history of violence.
      • Wintemute GJ
      • Betz ME
      • Ranney ML
      Yes, you can: physicians, patients, and firearms.
      Providers can limit or avoid prescribing drugs with overdose potential and carefully monitor patients on such drugs.
      • Agarin T
      • Trescot AM
      • Agarin A
      • Lesanics D
      • Decastro C
      Reducing opioid analgesic deaths in America: what health providers can do.
      They can talk to patients about using seat belts and motorcycle helmets and can screen for alcohol dependence.
      • Mucha Jr, P
      Trauma prophylaxis: every physician's responsibility.
      Researchers can examine the relative importance of individual-, community-, and policy-level factors that may explain the extensive variation in lifetime risk across demographic groups and states. They can also develop and test better methods for conveying information about the impact of these 3 conditions to the public and policy makers.
      Several limitations must be considered in interpreting these results. The standard method used in this study for estimating lifetime risk assumes that future death rates will match those of the current year.
      • Sasieni PD
      • Adams J
      Standardized lifetime risk.
      Such long-term extrapolations may under- or overestimate actual future risks. Moreover, lifetime risk estimates may be less relevant to individuals who have already survived for several decades.
      • Merrill RM
      • Kessler LG
      • Udler JM
      • Rasband GC
      • Feuer EJ
      Comparison of risk estimates for selected diseases and causes of death.
      The lifetime risk estimates in this analysis are average values, and different individuals may have substantially lower or higher risks. A small number of deaths among individuals ages 85+ were excluded from the analyses. This exclusion would be expected to slightly decrease estimated lifetime risk. There may be some misclassification of causes of death on death certificates. Finally, many deaths from firearms, drug overdoses, and motor vehicle accidents affect young adults. However, lifetime risk calculations do not focus on years of life lost and may not adequately capture the societal impact of deaths in this age group.

      Conclusion

      In conclusion, there is a substantial lifetime risk of death from firearms, drug overdoses, and motor vehicle accidents in the United States. The marked variation in lifetime risk across demographic groups and states, the sizeable changes in the numbers of these deaths over the past decades, and the much lower cause-specific death rates in other developed countries suggests that many of these premature causes of death should be preventable.

      Centers for Disease Control and Prevention. Underlying cause of death. Available at:https://wonder.cdc.gov/Accessed March 14, 2020.

      ,
      • Fingerhut LA
      • Kleinman JC
      International and interstate comparisons of homicide among young males.
      • Martins SS
      • Sampson L
      • Cerdá M
      • Galea S
      Worldwide prevalence and trends in unintentional drug overdose: a systematic review of the literature.
      • Rockett IR
      • Smith GS
      Homicide, suicide, motor vehicle crash, and fall mortality: United States' experience in comparative perspective.

      Appendix. Life Table Analysis of All-Cause and Firearm Deaths From Birth to End of Age 84 Years

      Tabled 1
      Actual deathsSimulated cohort
      Age (years)Population SizeAll-cause (rate/100,000)Firearm (rate/100,000)Alive beginning of intervalAll-cause deaths in intervalFirearm deaths in interval
      <13,848,20821,467

      (557.8)
      7

      (0.2)
      100,000.0557.80.2
      1-415,962,0673830

      (24.0)
      91

      (0.6)
      99,442.295.52.4
      5-920,195,6422330

      (11.5)
      70

      (0.3)
      99,346.757.11.5
      10-1420,879,5273120

      (14.9)
      367

      (1.8)
      99,289.674.08.9
      15-1921,097,22110,380

      (49.2)
      2807

      (13.3)
      99,215.6244.166.0
      20-2421,873,57919,774

      (90.4)
      4604

      (21.0)
      98,971.6447.4103.9
      25-2923,561,75627,461

      (116.5)
      4466

      (19.0)
      98,524.2573.993.6
      30-3422,136,01831,383

      (141.8)
      3634

      (16.4)
      97,950.3694.580.3
      35-3921,563,58737,617

      (174.4)
      3331

      (15.4)
      97,255.8848.174.9
      40-4419,714,30142,763

      (216.9)
      2696

      (13.7)
      96,407.81045.566.0
      45-4920,747,13564,873

      (312.7)
      2670

      (12.9)
      95,362.21491.061.5
      50-5420,884,56499,964

      (478.7)
      2653

      (12.7)
      93,871.22246.859.6
      55-5921,940,985160,963

      (733.6)
      2903

      (13.2)
      91,624.43360.860.5
      60-6420,331,651213,873

      (1051.9)
      2450

      (12.1)
      88,263.74642.253.4
      65-6917,086,893251,246

      (1470.4)
      1992

      (11.7)
      83,621.46147.848.9
      70-7413,405,423292,532

      (2182.2)
      1670

      (12.5)
      77,473.68453.148.4
      75-799,267,066321,745

      (3471.9)
      1419

      (15.3)
      69,020.411,981.652.8
      80-846,127,308353,460

      (5768.6)
      946

      (15.4)
      57,038.816,451.743.9
      Total firearm deaths926.8
      Lifetime risk (926.8/100,000)

      100/risk
      0.93%

      108

      References

        • Landy D
        • Silbert N
        • Goldin A
        Estimating large numbers.
        Cogn Sci. 2013; 37: 775-799
        • Cohen DJ
        • Ferrell JM
        • Johnson N
        What very small numbers mean.
        J Exp Psychol. 2002; 131: 424-442
        • Sasieni PD
        • Adams J
        Standardized lifetime risk.
        Am J Epidemiol. 1999; 149: 869-875
        • Fortin JM
        • Hirota LK
        • Bond BE
        • O'Connor AM
        • Col NF
        Identifying patient preferences for communicating risk estimates: a descriptive pilot study.
        BMC Med Inform Decis Mak. 2001; 1: 2
        • Navar AM
        • Wang TY
        • Mi X
        • et al.
        Influence of cardiovascular risk communication tools and presentation formats on patient perceptions and preferences.
        JAMA Cardiol. 2018; 3: 1192-1199
        • Merrill RM
        • Kessler LG
        • Udler JM
        • Rasband GC
        • Feuer EJ
        Comparison of risk estimates for selected diseases and causes of death.
        Prev Med. 1999; 28: 179-193
        • Kochanek KD
        • Murphy SL
        • Xu J
        • Arias E
        Deaths: final data for 2017.
        Natl Vital Stat Rep. 2019; 68: 1-77
      1. Centers for Disease Control and Prevention. Underlying cause of death. Available at:https://wonder.cdc.gov/Accessed March 14, 2020.

      2. National Institute on Drug Abuse. Overdose death rates. Available at:https://www.drugabuse.gov/related-topics/trends-statistics/overdose-death-ratesAccessed March 14, 2020.

        • Chiang CL
        Introduction to Stochastic Processes in Biostatistics.
        John Wiley & Sons, New York, NY1986
        • Feuer EJ
        • Wun LM
        • Boring CC
        • Flanders WD
        • Timmel MJ
        • Tong T
        The lifetime risk of developing breast cancer.
        J Natl Cancer Inst. 1993; 85: 892-897
        • Fowler KA
        • Dahlberg LL
        • Haileyesus T
        • Annest JL
        Firearm injuries in the United States.
        Prev Med. 2015; 79: 5-14
        • Riddell CA
        • Harper S
        • Cerdá M
        • Kaufman JS
        Comparison of rates of firearm and nonfirearm homicide and suicide in black and white non-Hispanic men, by U.S. state.
        Ann Intern Med. 2018; 168: 712-720
        • Mack KA
        Centers for Disease Control and Prevention (CDC). Drug-induced deaths - United States, 1999-2010.
        MMWR Suppl. 2013; 62: 161-163
        • Rockett IR
        • Regier MD
        • Kapusta ND
        • et al.
        Leading causes of unintentional and intentional injury mortality: United States, 2000-2009.
        Am J Public Health. 2012; 102: e84-e92
        • Wintemute GJ
        The epidemiology of firearm violence in the twenty-first century United States.
        Annu Rev Public Health. 2015; 36: 5-19
        • Kiberd BA
        • Clase CM
        Cumulative risk for developing end-stage renal disease in the US population.
        J Am Soc Nephrol. 2002; 13: 1635-1644
        • Cummings SR
        • Black DM
        • Rubin SM
        Lifetime risks of hip, Colles', or vertebral fracture and coronary heart disease among white postmenopausal women.
        Arch Intern Med. 1989; 149: 2445-2448
        • Vasan RS
        • Beiser A
        • Seshadri S
        • et al.
        Residual lifetime risk for developing hypertension in middle-aged women and men: The Framingham Heart Study.
        JAMA. 2002; 287: 1003-1010
        • Narayan KM
        • Boyle JP
        • Thompson TJ
        • Sorensen SW
        • Williamson DF
        Lifetime risk for diabetes mellitus in the United States.
        JAMA. 2003; 290: 1884-1890
        • Carone M
        • Asgharian M
        • Jewell NP
        Estimating the lifetime risk of dementia in the Canadian elderly population using cross-sectional cohort survival data.
        J Am Stat Assoc. 2014; 109: 24-35
        • Lloyd-Jones DM
        • Larson MG
        • Beiser A
        • Levy D
        Lifetime risk of developing coronary heart disease.
        Lancet. 1999; 353: 89-92
        • Licher S
        • Heshmatollah A
        • van der Willik KD
        • et al.
        Lifetime risk and multimorbidity of non-communicable diseases and disease-free life expectancy in the general population: a population-based cohort study.
        PLoS Med. 2019; 16e1002741
        • Florence CS
        • Zhou C
        • Luo F
        • Xu L
        The economic burden of prescription opioid overdose, abuse, and dependence in the United States, 2013.
        Med Care. 2016; 54: 901-906
        • Lehman DR
        • Wortman CB
        • Williams AF
        Long-term effects of losing a spouse or child in a motor vehicle crash.
        J Pers Soc Psychol. 1987; 52: 218-231
        • Wintemute GJ
        • Betz ME
        • Ranney ML
        Yes, you can: physicians, patients, and firearms.
        Ann Intern Med. 2016; 165: 205-213
        • Agarin T
        • Trescot AM
        • Agarin A
        • Lesanics D
        • Decastro C
        Reducing opioid analgesic deaths in America: what health providers can do.
        Pain Physician. 2015; 18: E307-E322
        • Mucha Jr, P
        Trauma prophylaxis: every physician's responsibility.
        Mayo Clin Proc. 1986; 61: 388-391
        • Fingerhut LA
        • Kleinman JC
        International and interstate comparisons of homicide among young males.
        JAMA. 1990; 263: 3292-3295
        • Martins SS
        • Sampson L
        • Cerdá M
        • Galea S
        Worldwide prevalence and trends in unintentional drug overdose: a systematic review of the literature.
        Am J Public Health. 2015; 105: e29-e49
        • Rockett IR
        • Smith GS
        Homicide, suicide, motor vehicle crash, and fall mortality: United States' experience in comparative perspective.
        Am J Public Health. 1989; 79: 1396-1400