Background
Recently, suicide exceeded motor vehicle crashes as the leading cause of injury death
in the U.S. However, details of this change in suicide methods and the relationship
to individual demographics, such as age and societal influences, have not been reported.
Purpose
To determine the characteristics of the changes in suicide rates between 2000 and
2010.
Methods
Data came from CDC's Web-Based Injury Statistics Query and Reporting System (WISQARS™).
Line charts were plotted to reveal changes in suicide rates by firearm, poisoning,
and hanging/suffocation (ICD-10 codes: X72–X74, X60–X69, and X70). The measure of
change used is the percentage change in suicide rate between 2000 and 2010.
Results
The overall suicide rate increased from 10.4 to 12.1 per 100,000 population between
2000 and 2010, a 16% increase. The majority of the increase was attributable to suicide
by hanging/suffocation (52%) and by poisoning (19%). Subgroup analysis showed: (1)
suicide by hanging/suffocation increased by 104% among those aged 45–59 years and
rose steadily in all age groups except those aged ≥70 years; (2) the largest increase
in suicide by poisoning (85%) occurred among those aged 60–69 years; and (3) suicide
by firearm decreased by 24% among those aged 15–24 years but increased by 22% among
those aged 45–59 years. The case fatality rates for suicide by hanging/suffocation
during 2000–2010 ranged from 69% to 84%, close to those for suicide by firearm. Analyses
were conducted in 2012.
Conclusions
Substantial increases in suicide by hanging/suffocation and poisoning merit attention
from policymakers and call for innovations and changes in suicide prevention approaches.
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Article info
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Copyright
© 2013 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.
