Research Trends
Severity of Attempted Suicide
as Measured by the
Pierce Suicidal Intent Scale
Merike Sisask
1,2
, Kairi Kõlves
1,3
, and Airi Värnik
1,2,4,5
1
Estonian-Swedish Mental Health and Suicidology Institute, Estonian Centre of Behavioral and Health
Sciences, Tallinn, Estonia,
2
Tallinn University, Tallinn, Estonia,
3
Australian Institute for Suicide Research
and Prevention (AISRAP), Brisbane, Australia,
4
University of Tartu, Tartu, Estonia,
5
National Prevention
of Suicide and Mental Ill-Health (NASP) at Karolinska Institute and Stockholm County Council’s Centre
for Suicide Research and Prevention, WHO Lead Collaborating Centre of Mental Health Problems and
Suicide Across Europe, Stockholm, Sweden
Abstract. Background: Suicidal intent is an essential feature of suicidal behavior. Previous research has been controversial and the need
for further evidence has been pointed out. Aims: The aim of the present study was to characterize the severity of attempted suicide by
extracting components of suicidal intent and analyzing levels of suicidal intent by gender, age, and variables indicating the severity of
attempted suicide. Methods: Data on suicide attempters (N = 469) were collected in Estonia using WHO SUPRE-MISS methodology.
To measure suicidal intent, a revised version of the Pierce Suicidal Intent Scale (PSIS) was used. Results: The level of suicidal intent
was not gender-dependent, but rose with age. Males and females were also similar in terms of discrete components. Classified in age
groups, their unequivocally expressed “wish to die” was similar, but equivocal communication (components termed “arrangements” and
“circumstances”) increased with age. Middle-aged groups scored higher for the “alcohol/drugs” component. Psychiatric diagnosis, method
of attempting suicide, and duration of hospitalization were linked to suicidal intent, but danger to life as assessed by interviewers was
not. Conclusions: In suicide-risk assessment, results from a Suicidal Intent Scale contribute to clinical observation and add valuable
information about a suicidal person’s real intention.
Keywords: suicide attempt, Pierce Suicidal Intent Scale, components of suicidal intent, gender and age differences
Introduction
Suicidal intent is an essential component of any definition
of suicide and suicidal behavior. This is primarily because
it permits a distinction to be drawn between accidental and
suicidal behavior (Andriessen, 2006). Suicidal intent has
been defined as the seriousness or intensity of a person’s
wish to terminate his or her life (Beck, Schuyler, & Her-
man, 1974). The term level of suicidal intent is used to
describe the intensity of a death wish (Hjelmeland & Haw-
ton, 2004).
The development of suicidal behavior has been charac-
terized by the model of suicidal process, and suicidality has
been described as a continuum from the lowest (weariness
of life, suicidal ideation) to the highest (serious suicide at-
tempt and completed suicide) level of suicidality (Maris,
Berman, Silverman, & Bongar, 2000; Wasserman, 2001).
Suicidal intent evolves during the suicidal process and lev-
els of suicidal intent at different stages of the suicidal pro-
cess may vary. Suicidal intent consists in a consciously ex-
pressed wish to be dead, but there are also nonsuicidal con-
scious or unconscious purposes, such as trying to manipu-
late others or escape from an intolerable situation (Andries-
sen, 2006; Hjelmeland, 1995; Hjelmeland & Hawton,
2004; Hjelmeland & Knizek, 1999; Michel, Valach, &
Waeber, 1994). Moreover, suicidal behavior has clear ver-
bal communication aspects, but nonverbal suicidal com-
munication also expresses suicidal intent, one example be-
ing the particular way in which a suicidal act is carried out,
especially in the presence of others (Lester, 2001; Wasser-
man, 2001).
Psychometric scales are available to measure levels and
various aspects of suicidal intent. One of the best-known
scales, the Beck Suicide Intent Scale (BSIS), is not a sui-
cide-risk scale as such, but rather a scale designed for use
in research studies to classify suicide attempters (Bech,
Raabaek Olsen, & Nimeus, 2001; Beck, Kovacs, & Weiss-
man, 1979; Beck et al., 1974). A comparable scale, the
DOI 10.1027/0227-5910.30.3.136
Crisis 2009; Vol. 30(3):136–143 © 2009 Hogrefe Publishing