matthew miller, md, mph, scd associate director, harvard ... · associate director, harvard injury...
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Why it is time for a public health approach to preventing suicide
Matthew Miller, MD, MPH, ScDAssociate Director,
Harvard Injury Control Research Center
Background• GGB: Leading suicide
location worldwide• More than 1200 suicides
since 1937 – Approximately one suicide every 2-
3 weeks– 4 foot railing, no other barrier
• Not always the uncontested leader among sites worldwide
– the Eiffel Tower, St. Peter’s Basilica, the Sydney Harbor and Arroyo Seco Bridges, Mt. Mihara
Percent who think ALLJumpers would find another way to kill themselves if a foolproof anti-suicide barrier were put up
on the Golden Gate BridgeMultivariate Odds
Ratio (95% CI)
All respondents (n=2638)
Male (n=1310)
Female (n=1328)
Current Smoker (n=548)
Not a Current Smoker (n=2087)
Personally own a firearm (n=735)
Live in a household with guns but do not personally own any firearms (n=296)
Live in a household without firearms (n=1560)
Barriers to Suicide and Suicide Prevention: Public Opinion and the Golden Gate Bridge
Miller M, Azrael D, Hemenway D. Belief in the inevitability of suicide: results from a national survey. Suicide and Life Threatening Behavior. 2006. 36(1):1-11.
Simplistic model of some causes of fatal and non-fatal suicidal behaviour
GENETIC FACTORS
PERSONALITY FACTORS
Cultural meaning of suicide/ role
models/media influences
PSYCHIATRIC DISORDERS
Life Events/Crises
Aggression Impulsivity
Hopelessness
Method likely to be
lethal
Method unlikely to be
lethal
NON-FATAL ATTEMPT
SUICIDE
AVAILABILITY OF METHOD
SUICIDAL BEHAVIOUR
Modified from Keith Hawton, PhD
Causes of Violent Death, Worldwide
• ~ one million suicides annually worldwide– 16 per 100,000, or one
death every 40 seconds.
• Suicide is now among the three leading causes of death among those aged 15-44 years
Armed Conflict
20%
Suicide50%
Homicide30%
Source: WHO, Violence and Health, Report of the Secretariat, November 2001
How many SPH offer courses on suicide prevention?
Leading Causes of Death, US, 2002
2003 Deaths
Suicides 31,484 Firearm Suicides 16,907 (54%)
Homicides 17,732Firearm Homicide 11,920 (67%)
HICRC 2004 Firearms Survey
Households with Kids
Households without Kids
Firearm prevalence 39% 38%
In Households with Guns:% Unlocked•% Loaded•% Loaded & Unlocked
48% 22%5%
56% 31% 12%
Hepburn L, Miller M, Azrael D, Hemenway D. Firearm ownership in the US: findings a national survey. Preliminary findings
Non-fatal Self-Harm vs. Suicide, United States
Cut/pierce22%
Drown/Near-drown*0%
Fall1%
Firearm*1%
Poisoning75%
Inhalation/suffocation
1%
WISQARS Non-Fatal Injury Reports (2003 Data) seen in ER regardless of dispositionWISQARS Fatal Injury Reports (2003 Data)
Firearm55%
Poisoning18%
Suffocation21%
Cutting/piercing2%
Drowning1% Fall
2%
Suicide (n=31,484)Non-fatal Self-Harm (n=411,128)
Relationship of attempted suicide to completed suicide
Attempted Suicides
Completed Suicides
AB <10% of A
AB= 25%-30% of B
AB
Source: Maris R.W. (1981) Pathways to suicide: A survey of self-destructive behaviors.Reprinted in Maris, Berman, Silverman, eds. Comprehensive Textbook on Suicidology, 2000.
Suicide Attempts and Case Fatality Rate by Method Seven Northeast States, 1996-2000
All Methods Firearm Poisoning/Cutting/Piercing
Suffocation/Hanging
All Other Methods
Percent of suicide acts by methods
100% 5% 85% 5% 5%
0
0.2
0.4
0.6
0.8
1
Cas
e Fa
talit
y R
ate
CFR 0.13 0.91 0.03 0.74 0.15
All Methods Firearm Poisoning / Cutting /
Suffocation / Hanging
All Other Methods
Source: Miller, Azrael, Hemenway, Annals of Emer Med, 2004.
Guns used in suicide
Rifle or Shotgun
54%Handgun
46%
Youth17 and under
Adults18 and over
Rifle or Shotgun
40%Handgun
60%
The vast majority (~90%) of firearms used in suicides come from the victims home
From: Keith Hawton, PhD
SUICIDE RISK
A ACUTE RISK (only)
B ACUTE ON CHRONIC RISK
x yPeriod of extra
riskChronic risk
x yRisk periodNo risk
• Suicide acts are often impulsive
• Crises are often temporary
• 90% of survivors of near-lethal suicide attempts do not commit suicide thereafter
Means Restriction as a Suicide Prevention Strategy
SURVIVORS OF SELF-INFLICTED SHOOTING
• 33 survivors of self-inflicted firearm injuries
• Most common reason for shooting was interpersonal conflict with partner or family members (21 patients)
• Act almost always described as impulsive
• All used firearms available in household and availability was often reason given for choice of this method
(De Moore et al, 1994)
Impulsivity
ImpulsivityFactors associated with the medical severity of suicide attempts in youths and young adults (Swahn MH, Potter LB, 2001)
•25% of 153 survivors of near lethal suicide attempts acted within 5 minutes of the impulse to do so
•71% acted within one hour
Sri Lanka Pesticide Suicides (Eddleston, 2006 JCT)
•268 self-poisonings, 85% noted choice of poison dictated by what was readily at hand
•Little premeditation
On the bridge, Baldwin counted to ten and stayed frozen. He counted to ten again, then vaulted over. “I still see my hands coming off the railing,” he said. As he crossed the chord in flight, Baldwin recalls, “I instantly realized that everything in my life that I’d thought was unfixable was totally fixable—except for having just jumped.”
Tad Friend. Jumpers. The New Yorker (2003)
CRISIS | same-day• Did suicide occur within 24 hours of a
very recent crisis or precipitating event?– e.g. arrest, job loss, argument, relationship
break-up, legal trouble, police pursuit, bad report card
• Purpose is to identify suicides that may have an impulsive element
Crisis, same day
Victim was a 16 year-old boy who had been suspended from school for misbehavior. His mother grounded him and they got in a loud argument. He ran from the room, slammed the door, went to the basement and shot himself with his father’s rifle. No known mental health history.
CRISIS | % same day by age
6
13
2021
33
0-17 18-24 25-44 45-64 65+
Age group
%
2001 Data
N=1,671 CT, ME, UT, WI, Allegheny County, San Francisco County
Lifetime Risk of Suicide Among Five Populations of Psychiatric Patients
From: Bostwick: Am J Psychiatry, Volume 157(12).December 2000.1925-1932
Prognosis after attempted suicide
Prognosis after attempted suicide
Prognosis after attempted suicide
Does availability of methodaffect suicide rates?
THE COAL GAS STORY(Kreitman, 1976)
0
2
4
6
8
10
12
14
1955 1960 1965 1970 1974Year
Perc
ent C
OPercentage of CO in domestic gas, United Kingdom 1955-74
THE COAL GAS STORY (Kreitman, 1976)
0
2
4
6
8
10
12
14
55 57 59 61 63 65 67 69 71Year
Total
Non CO
CO
Sex-specific suicide rates by mode of death: England & Wales
0
2
4
6
8
10
12
14
55 57 59 61 63 65 67 69 71Year
Total
Non CO
CO
Males Females
Rat
e pe
r 10 0
,000
Ra t
e pe
r 10 0
,000
Source: Natl. Center for Health StatisticsAge-adjusted to 1940 U.S. population
0
2
46
8
10
1214
16
18
1933
1935
1945
1955
1965
1975
1985
1995
2001
0
10
20
30
40
50
60
Suicide Rate
% Adults in Householdswith Guns
Suicide Rates United States, 1933-2001
45
67
8
Sui
cide
Rat
e (p
er 1
00,0
00 p
opul
atio
n)
2530
3540
4550
3 Y
ear R
ollin
g Av
erag
e of
Hou
seho
ld G
un O
wne
rshi
p
1980 1985 1990 1995 2000
Year
3 Yr. Rolling Average Household Gun Ownership Non-Firearm Suicide Rate
Firearm Suicide Rate
Figure 2. Household gun ownership levels and rates of firearm and non-firearm suicide mortality:United States, 1981-2002
Miller M, Azrael D, Hepburn L, Hemenway D, Lippmann S. Injury Prevention. 2006. In Press.
% Decrease in
Firearm Suicide Rate
(95% Confidence
Interval)
% Decrease in
Non-Firearm Suicide Rate
(95% Confidence Interval)
% Decrease in
Overall Suicide Rate
(95% Confidence
Interval)
Total Population 4.2% (2.3% –6.1%) *** 0.3% (-1.4% – 2.3%) 2.5% (1.4% –3.6%) ***
Males 3.4% (2.8% –4.1%) *** 1.1% (-0.7% –2.9%) 2.3% (1.7% – 2.9%)***
Females 3.4% (1.9% – 4.9%) *** -0.5%(-1.9% – 1.9%) 1.0% (0.4% – 1.6)**
Children (0-19
years of age) 8.3% (6.1% –10.5%) *** -0.4.% (-2.9% –2.1%) 4.1% (2.3% –5.9%) ***
Miller M, Azrael D, Hepburn L, Hemenway D, Lippmann S. Injury Prevention. 2006.
Table 1. Longitudinal Association between Household Gun Ownership and Suicide Mortality: Percent Decrease in Mortality Rate for each 10% Decrease in Household Firearm Ownership Level (1981-2001), adjusted for age, unemployment, poverty, per capita alcohol consumption and region of the country
Why might declines occur?– Improved life circumstances– Improved mental health – Improved mental health treatment (SSRIS?)– Cohort characteristics– Changes in social norms– Coding changes– Changes in population (e.g. large influx of
immigrants with lower suicide rates; change in age distribution)
In most of these scenarios, we would expect to see attempts and completions by all methods going down.
12-month prevalence of suicide related behaviors, 15-54 year olds (National Co-morbidity Survey)
1990-1992 NCS
2001-2003NCS
P Value
Ideation 2.8% 3.3% 0.44
Gesture 0.3% 0.2% 0.24
Attempt 0.4% 0.6% 0.44
Kessler et al. JAMA. 2005;293:2487-2495
Rates of Household Firearm Ownership and Rates of Suicide, Firearm Suicide and Non-Firearm Suicide across 7 North East States, 1996-2000
Percent of Households
with Firearms Suicides per
100000 Firearm Suicides
per 100000 Non-Firearm Suicides per
100000 Vermont 42% 12.3 8.0 4.3 Maine 41% 13.3 7.8 5.5 New Hampshire 30% 11.7 6.2 5.5 Connecticut 17% 8.5 3.3 5.2 Rhode Island 13% 8.3 3.0 5.3 Massachusetts 12% 7.5 2.1 5.4 New Jersey 12% 7.1 2.3 4.8 All 7 States 17% 8.2 3.1 5.1
Miller M, Azrael D, Hemenway D. Firearms and Suicide in the Northeast. Journal of Trauma. 2004; 57:626-632
Suicide attempt rate with non-firearm methods did not significantly correlate with firearm prevalence
Firearms and Suicide across the 50 US States,1999-2002
Dependent Variable• Firearm and non-firearm suicide mortality rates Independent Variables• Household Firearm Prevalence (BRFSS 2002)• Alcohol and illicit substance abuse and dependence-• Serious mental illness • Unemployment • Poverty and urbanization
Miller M, Lippmann S, Azrael D, Hemenway D. Journal of Trauma. 2006. In Press.
Suicides by Age Group: The 15 U.S. States with the Highest vs. the 6 U.S. States with the Lowest Average Household Gun Ownership* (2000-2002)
High-Gun States(Total Pop., 2000-2002:
115 Million)
Low-Gun States(Total Pop., 2000-2002:
118 Million)
Mortality Rate Ratio
(High Gun : Low Gun)
47% of Households have firearms
15% of Households have firearms
35-64 year olds
5-19 Year OldsFirearm Suicide 654 121 5.5Non-Firearm Suicide 417 339 1.3Total Suicide 1071 460 2.4
Firearm Suicide 4674 1316 3.6Non-Firearm Suicide 2775 2992 1.0Total Suicide 7449 4308 1.8
Miller, Azrael, Hemenway. Journal of Trauma. 2006. In Press
Correlation Coefficients: rates of suicide, firearm suicide, non-firearm suicide, lifetime major depression, lifetime suicidal thoughts and firearm ownership, US Census regions
Suicide Rate Firearm suicide rate
Non-firearm suicide rate
Major depression
Suicidal thoughts
Household Handgun prevalence
0.59 0.83 -0.57 -0.10 -0.01
Hemenway D, Miller M. Association of rates of household handgunownership, lifetime major depression, and serious suicidal thoughts with rates of suicide across US census regions. Injury Prevention 2002; 8:313-316
Psychiatric disorder prevalence estimates by census region, 1991-92 (National Co-morbidity Study, n=48,000). Lifetime major depression (n=8098) and ever seriously considered suicide (n=5877) were reported by 17% and 13% of respondents nationally. Mean household firearm and handgun ownership rates come from the General Social Surveys.
Controlled for per capita alcohol consumption, unemployment, college education from NCS
Personally Own Firearms (n=762)
Households with Firearms (n=1075)
No Firearms (n=1639)
2.8% 2.9% 4.9%
Seriously Considered Suicidein Past 5 Years
HICRC National RDD Survey, 2004
Miller et al. 2006.
Case Control: Brent et al
Five overlapping studies of adolescents in Western PA (no one study with more than 70 suicides)
Results common to all studies:–Firearms in the home strongly associated with risk of suicide
(OR=2 to 5)
Brent et al
Case Control: Kellermann et al
Suicide in the HOMEAll agesLarge study (803 suicides)
•Results:–Firearms in the home strongly associated with risk of suicide–The association is strongest for adolescents/young adults and for individuals without a known psychiatric history–Risk greater if gun stored loaded or unlocked–Risk is elevated for all members of the household
Kelermann, NEJM, 1992
Case Control: Cummings et al RQ: Is the purchase of handgun from licensed dealer associated with suicide, risk vary with time since purchase, risk extend to family members?
•Results:–Suicides more likely than controls to live in household in which a family member had purchased a handgun (RR=1.9).
•RR=2.0 if an individual himself purchased the gun and 1.5 if the handgun was purchased by another family member•Risk greatest within first year, persists even after 5 years
Cummings et al, AJPH, 1997
Grossman et al, JAMA, February 9, 2005.
Storage Practices and Suicide Risk, 5-19 year olds
No. (%)
Firearm Storage Practice Cases(N=106)
Controls(N=480)
Adjusted Odds Ratio (95% CI)
Gun unloaded 66% 91% 0.30 (0.16-0.56)
Gun locked 32% 58% 0.27 (0.17-0.45)
Ammunition locked 24% 48% 0.39 (0.23-0.66)
Risk of Suicide in the Home in Relation to Various Patterns of Gun Ownership
Variable Adjusted Odds Ratio
95% Confidence Interval
Type of guns in the homeOne or more handguns 5.8 3.1 – 4.7Long guns only 3.0 1.4 – 6.5No guns in the home 1.0 --
Loaded gunsAny gun kept loaded 9.2 4.1 – 20.1 All guns kept unloaded 3.3 1.7 – 6.1No guns in the home 1.0 --
Locked gunsAny guns kept unlocked 5.6 3.1 – 10.4All guns kept locked up 2.4 1.0 – 5.7No guns in the home 1.0 --
Source: Kellerman et al. 1992. NEJM
Parents of 106 Adolescents with Major Depression
Follow up 2 yrs
Not counseled
27% removed guns from home
Told about the increase risk of suicide conveyed by
guns in the home
73% retained guns in home
Follow up 2 yrs
17% acquired guns
Asked if firearms in the home
27% Yes 73% No
Brent et al. 2000: JAACAP
Do Interventions work?
Survey of ED Nurses in Illinois (n=527)
Experience PercentageRecent experience with suicidal adolescents
80% (n = 407)
Ever received means restriction training
24%(n = 122)
Provided means restriction education to parents
28%(n = 136)
Worked in units where means restriction is standard practice
18%(n = 89)
Grossman et al, 2003: JAPNA
Are we trying hard enough?
Poison center chart reviewF/U call to caretakers, 6-24 months
after suicide attempt by adolescent
Are we delivering the right message?
Potentially lethal means available in the home at the time of the
attempt
• 75% prescription medication• 86% OTC medications• 2% street drugs
– 95% had some medication available at time of SA
• 25% firearms
At follow-up
~10% reported that injury prevention education was given about restricting access medication– 86% locked up medications (vs. 32% of those w/o IP education)
No one (0%) reported being told that firearms in the home increase the risk of suicide
76% of the adults were not worried about thepossibility of a repeat suicide attempt by their adolescent
Active OppositionIn early 2006, two separate but virtually identical
bills were introduced in the Virginia and West Virginia legislatures
– Each bill would have prohibited a physician from asking a patient if he or she owned firearms for the purpose of counseling that patient about ways to reduce risks associated with firearms
– Penalties for violation of the bills included revocation of a physician's license to practice
Counseling about firearms: proposed legislation is a threat to physicians and their patients. Vernick JS, Teret SP, Smith GA, Webster DW. Pediatrics 2006; 118(5):2168-72
Passive Opposition
Percent who think ALLJumpers would find another way to kill themselves if a foolproof anti-suicide barrier were put up
on the Golden Gate BridgeMultivariate Odds
Ratio (95% CI)
All respondents (n=2638) 34% NA
Male (n=1310) 37%*** 1.05 (0.86, 1.28)
Female (n=1328) 31% Reference
Current Smoker (n=548) 43%*** 1.55 (1.25, 1.93)***
Not a Current Smoker (n=2087) 32% Reference
Personally own a firearm (n=735) 48%*** 2.10 (1.70,2.59)***
Live in a household with guns but do not personally own any firearms (n=296) 36%*** 1.36 (1.02,1.81)*
Live in a household without firearms (n=1560) 26% Reference
Barriers to Suicide and Suicide Prevention: Public Opinion and the Golden Gate Bridge
An additional 40% thought that most jumpers would have found another way to complete suicide
Miller M, Azrael D, Hemenway D. Belief in the inevitability of suicide: results from a national survey. Suicide and Life Threatening Behavior. 2006. 36(1):1-11.
Conclusions
• Suicide is preventable • Means Matter• Interventions can change behavior• Message infrequently delivered/ received• Active and Passive Opposition• The Deadly Breach• Opportunity for success
Questions?
Discordance Between Parent and Child Responses to Questions about Household
Firearms
Know Location HandledAll children 39% 22%Household firearms All locked 46% 17% Some unlocked 30% 29%Parent Report Discussed gun safety w child 40% 21% Never discussed gun safety w child 39% 29%
Baxley and Miller, 2006: APAM
21 Grounds for Revocation of a Medical License in Virginia
1. False statements, fraud, deceit2. Substance abuse3. Intentionally or neglig. harming a patient4. Mental or physical incapacity5. Conviction for moral turpitude6-21. Other egregious conduct
Vernick, Teret, Smith, Webster. Under review by Pediatrics.
VA HB 1531 Sought to Add #22
22. “Oral or written inquiry to a patient concerning the possession, ownership, or storage of firearms, where such inquiry has no relationship to the practice of the healing arts or the medical condition of the patient, and is for the purpose of gathering statistics or to justify patient counseling, unless such inquiry is the subject of a request, or related to a medical complaint, made by the patient.”
HB 1531: What Happened Next
• Jan 20: Bill introduced• Feb 13: Passed VA State Assembly, 88-11• Feb 14-22: Lobbying by NRA and AAP• Feb 23: Defeated in VA Senate Comm., 9-
6• Feb 24: Virtually identical bill introduced in
West Virginia• Mar 19: WV session closes with no action
Implications of the Bills
• Medical Malpractice• The First Amendment
Dr. Timothy Wheeler: “This was not a badshowing for a first try at a boundary violationbill”.
Case Control: Cornwell et al All Suicides, 65 years and olderLarge study (86 cases and 86 community controls matched on age, sex, county of residence)
•Results: –Presence of a firearm in the home was associated with increased risk for suicide, even after controlling for psychiatric illness.–Elevated risk was accounted for by access to handguns rather than long guns–RR more pronounced in men than women–Storing the weapon loaded and unlocked were independent predictors of suicide
Cornwell, Am J Geriatric Psychiatry, 2002
Case Control: Wiebe
All Suicides drawn from the 1993 National Mortality Followback SurveyLarge study (1,959 cases and 13,535 controls from National health interview Survey matched on age, sex, race)
•Results: –Presence of a firearm in the home was associated with increased risk for suicide: 66% of suicides lived in households with guns vs. 37% of controls–OR=3.4 (3.1, 3.9)–Elevated risk was accounted for by access to handguns rather than long guns
Wiebe, AEM,41(6): 771-82, 2003
Guns used in suicide • Among 35 gun suicide victims aged 17 and under, the
owner of the gun was documented in 26 cases.• In 92% of cases (24/26), the gun came from the family.
Owner # % Parent 21 80.8Other family 1 3.8Self, received from parent 2 7.7Self, source unknown 2 7.7Total 26 100.0
92%
*Among adults as well, firearms used in suicide are predominantly household guns
Rates of Household Firearm Ownership and Rates of Suicide, Firearm Suicide and Non-Firearm Suicide across 7 North East States, 1996-2000
Percent of Households
with Firearms Suicides per
100000 Firearm Suicides
per 100000 Non-Firearm Suicides per
100000 Vermont 42% 12.3 8.0 4.3 Maine 41% 13.3 7.8 5.5 New Hampshire 30% 11.7 6.2 5.5 Connecticut 17% 8.5 3.3 5.2 Rhode Island 13% 8.3 3.0 5.3 Massachusetts 12% 7.5 2.1 5.4 New Jersey 12% 7.1 2.3 4.8 All 7 States 17% 8.2 3.1 5.1
Miller M, Azrael D, Hemenway D. Firearms and Suicide in the Northeast. Journal of Trauma. 2004; 57:626-632
Rates of Self-harm (per 100,000), 7 Northeast States, 1996-2000, by State and Method (per 100,000 population) across 7 North East States, listed in order of firearm prevalence, highest to lowest
Suicide Attempt Rate All Methods
Suicide Attempt Rate
Firearm
Suicide Attempt Rate
Poisoning/ Cutting/ Piercing
Suicide Attempt Rate Suffocation/
Hanging
Suicide Attempt Rate All Other
Methods
Vermont 77 9 63 2 3 Maine 80 9 66 3 3 New Hampshire 78 7 65 3 3 Connecticut 67 4 57 3 2 Rhode Island 76 3 65 4 3 Massachusetts 64 2 55 4 3 New Jersey 55 3 48 3 2 Percent of suicide attempts by method
100% 5% 85% 5% 5%
Miller M, Azrael D, Hemenway D. Firearms and Suicide in the Northeast. Journal of Trauma. 2004; 57:626-632
Baxley & Miller (2006)
Suicide Rates by Method
0 2 4 6 8 10 12 14 16 18
Suicide Deaths/100,000
Denmark
Australia
New Zealand
Canada
Scotland
Norw ay
US
The Netherlands
Eng & Wales
Israel
Firearm Poisoning Suffocation All Other
Source: Lois A. Fingerhut, MA, Centers for disease Control and Prevention, Unpublished
Tested Positive for Alcohol (83% tested)
5%
35%
<18 yrs Adults
Youth alcohol use
The Association between Changes in Household Firearm Ownership and Rates of Suicide in the United States,
1981-2002
Dependent Variable• Firearm and non-firearm suicide mortality rates from WISQARS, 4 Census regions, 1981-
2002
Independent Variables• Percentage of individuals living in households with firearms (gun prevalence) – General
Social Survey (GSS)• Age• Per capita alcohol consumption - National Institute on Alcohol Abuse and Alcoholism• Unemployment – Bureau of Labor Statistics• Poverty and urbanization – Census Current Population Survey
Analysis• GEE modeling to account for serial auto-correlation• Regional fixed effects controlled for cross sectional, time invariant differences among the
four census regions.
The association between changes in household firearm ownership and rates of suicide in the United States, 1981–2002. .M Miller, D Azrael, L Hepburn, D Hemenway, S J Lippmann. Injury Prevention 2006;12:178–182.
Rates of Self-harm (per 100,000), 7 Northeast States, 1996-2000, by State and Method (per 100,000 population) across 7 North East States, listed in order of firearm prevalence, highest to lowest
Suicide Attempt Rate All Methods
Suicide Attempt Rate
Firearm
Suicide Attempt Rate
Poisoning/ Cutting/ Piercing
Suicide Attempt Rate Suffocation/
Hanging
Suicide Attempt Rate All Other
Methods
Vermont 77 9 63 2 3 Maine 80 9 66 3 3 New Hampshire 78 7 65 3 3 Connecticut 67 4 57 3 2 Rhode Island 76 3 65 4 3 Massachusetts 64 2 55 4 3 New Jersey 55 3 48 3 2 Percent of suicide attempts by method
100% 5% 85% 5% 5%
Miller M, Azrael D, Hemenway D. Firearms and Suicide in the Northeast. Journal of Trauma. 2004; 57:626-632