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Depression and
Thoughts of Suicide Among Middle-Aged and Older Persons Living
With HIV-AIDS
Seth C. Kalichman, Ph.D., Timothy
Heckman, Ph.D., Arlene Kochman, M.S.W., Kathleen Sikkema, Ph.D.
and Jo Bergholte
http://www.psychservices.psychiatryonline.org/cgi/content/full/51/7/903
Abstract
OBJECTIVE: This study examined the prevalence and
characteristics of suicidal ideation among
middle-aged and older persons who have HIV infection
or AIDS. METHODS: A total of 113 subjects
older than age 45 who had HIV-AIDS were recruited from AIDS
service organizations in Milwaukee, Wisconsin, and New
York City. Participants completed confidential
questionnaires covering suicidal ideation, emotional
distress, quality of life, coping, and social
support. RESULTS: Twenty-seven percent of respondents
reported having thought about taking their own life in the
previous week. Those who had thought about suicide
reported greater levels of emotional distress and
poorer health-related quality of life than those who
had not considered suicide. They were also significantly
more likely to use escape and avoidance strategies for
coping with HIV infection and less likely to use
positive-reappraisal coping. Those who had thought
about suicide also were more likely to have disclosed
their HIV status to the people close to them, and yet
they perceived receiving significantly less social support
from friends and family. With the exceptions of physical
functioning and coping strategies, differences
between those who had contemplated suicide and those
who had not remained unchanged after controlling for
symptoms of depression. CONCLUSIONS: Persons who are in
midlife and older and are living with HIV-AIDS experience
significant emotional distress and thoughts of
suicide, suggesting a need for targeted interventions
to improve mental health and prevent suicide.
Introduction
Once an epidemic concentrated among the young, AIDS is
increasingly affecting older adults. Of all persons
in the United States who have been diagnosed as
having AIDS, the proportion who were men age 45 and
older cumulatively increased from 9 percent in 1995
to 21 percent in mid-1999. A similar escalation in AIDS
cases was observed in women age 45 and older, who
constituted 6 percent of all cases in 1995 and 16
percent in mid-1999.
New HIV
infection rates also suggest that the trend toward greater
percentages of older adults with an AIDS diagnosis will
continue; 29 percent of men and 24 percent of women
newly infected with HIV in 1997 were between 35 and
44 years old (1,2).
Thus more adults are becoming infected in their
thirties and forties, and advances in treatments for
both HIV infection and AIDS-associated conditions are
increasing the longevity of those living with HIV
infection. Although older adults clearly constitute a growing
population of people with HIV-AIDS, little is known about
their mental health needs and their ability to cope
with HIV infection.
Research with
younger populations suggests that people who are HIV
positive may be at greater risk for suicide than their
uninfected counterparts (3,4,5,6).
In a study of more than 2,300 psychiatric
consultations in a New York City hospital, approximately 20
percent of patients with HIV infection exhibited suicidal
behavior compared with 14 percent of patients with
unknown HIV serostatus (7).
Persons with HIV infection who attempt suicide are likely
to abuse drugs, experience social isolation, and lack
social support (8,9).
In addition, HIV-positive men are at greater risk for
suicide than women, and persons with HIV-AIDS who more
frequently use avoidance and denial strategies for coping
with HIV-related stress are at greater risk for
suicide (8,10).
Studies also
suggest that patients' risk for suicide may be
greater soon after testing positive for HIV than later on, after
some time has passed and they begin to adjust to living
with the infection (11).
For example, using the suicide intention item in the
Beck Depression Inventory, Perry and associates (12)
found that 29 percent of persons with HIV infection had
thoughts of suicide the week before testing for HIV
antibodies. In the same cohort, 27 percent had
thoughts of suicide one week after notification of
their HIV-positive test result, and 16 percent had
thoughts of suicide two months later. Although thoughts
of suicide may recede as people adjust to their HIV
diagnosis, there may be a resurgence in suicide risk
as HIV-related disease advances, particularly with
the development of AIDS-related symptoms and
illnesses (13).
In the general
population, suicide rates are highest among adults
who are in midlife and older, and suicide is among the ten
leading causes of death for individuals 45 to 65
years of age (14,15,16,17).
The AIDS mental health literature to date has largely
overlooked suicidal ideation in older adults with
HIV-AIDS.
We investigated
the rates of suicidal ideation and suicide intention
among men and women age 45 and older with HIV infection or AIDS.
Using methods for defining suicidal ideation similar to
those used in previous studies (12),
we examined the relationship between suicidal
ideation and self-reported emotional distress,
functional well-being, psychological coping with HIV-AIDS, and
social support among our respondents.
On the basis of
cognitive theories of suicide that view thoughts of
suicide on a continuum, with thoughts of self-inflicted harm
defined as a low-threshold indicator of suicide risk (18),
we hypothesized that persons who were thinking of
suicide would be experiencing greater emotional
distress and poorer health-related quality of life
than persons not currently thinking of suicide. We
also predicted that those who thought about suicide in the
previous week would be more likely to use avoidance and
denial-related coping strategies in dealing with
their HIV infection. Finally, we hypothesized that
middle-aged and older adults with HIV infection who
had thoughts of suicide would be less likely to disclose
their HIV status to others, thereby increasing their
social isolation, and would perceive less social
support than those not thinking of suicide.
Methods
Participants
Participants were 85 men and 28 women living with HIV-AIDS who
were recruited from community-based organizations in
Milwaukee, Wisconsin (N=22), and New York City
(N=91). Their mean±SD age was 53.4±.5 years (range,
47 to 69 years), with 66 percent between the ages of
45 and 54 years. The sample was ethnically diverse;
of the 113 participants, 48 were white (43 percent),
48 were African American (43 percent), nine were Hispanic
(8 percent), and eight were of other ethnicities (6
percent). The mean±SD years of education was 14±2.4,
with 32 percent having completed 12 years or more of
schooling. Twenty-six were currently married or had a
partner (23 percent), and 55 had children (49
percent).
Participants
were also diverse in their HIV risk histories.
Sixty-five persons believed that they had become infected
through sexual contact (58 percent), 12 through
injection drug use (11 percent), and three through
blood transfusions (3 percent); 33 did not know the
source of their HIV infection (29 percent). The
median time since testing positive for HIV was eight years
(range, two to 16 years). Forty-one respondents were not
currently experiencing symptoms of HIV infection (36
percent), and 49 had not been diagnosed as having
AIDS (43 percent).
Procedures
The study was conducted in 1998 and 1999 in collaboration with
AIDS service organizations in Milwaukee and New York City.
Case managers were asked to contact their clients who
were in midlife or older to inform them of the
opportunity to participate in a mental health and
life care needs assessment for people living with
HIV-AIDS. Individuals interested in the study called a
toll-free telephone number and were provided with detailed
information about the study.
Those who
wished to enroll in the study were scheduled for an
appointment at the AIDS agency in their city. Participants
provided informed consent at the data collection
session and completed a confidential,
self-administered questionnaire. Those who had
reading problems were helped to complete the survey.
Participants were given $20 for completing the
survey.
Measures
Demographic and health status. Participants reported
their age, ethnicity, sexual orientation, years of
education, the year when they first tested positive
for HIV antibodies, their current symptoms, if any,
of HIV infection, and whether they had been diagnosed
as having an AIDS-defining condition.
Suicidal
ideation. We used the
suicide intention item from the Beck Depression
Inventory (BDI) to assess suicidal ideation. The BDI
consists of 21 items that reflect cognitive, affective,
behavioral, and somatic symptoms of depression, each
scored 0 to 3 according to severity (19,20).
We have found that the BDI provides a valid
assessment of depressive symptoms in people with
HIV-AIDS and that depressive and HIV-related symptoms are
easily distinguished because the scale has a somatic
symptoms subscale (21).
The suicidal
ideation item presents four statements representing a
continuum of suicide risk: "I don't have any thoughts of killing
myself"; "I have thoughts of killing myself, but I would
not carry them out"; "I would like to kill myself";
and "I would kill myself if I had the chance."
Participants were instructed to indicate which
statement best applied to them over the past week. We
used this item to form two comparison groups: subjects
who had no thoughts of suicide, or those who selected the
first statement, compared with subjects who had
thoughts of suicide, those who selected any of the
other three statements. We also obtained an adjusted
depression score on the BDI after removing the
suicide intention item.
Emotional
distress. The Symptom
Checklist-90 (SCL-90) (22)
served as an independent index of distress with five
subscales: anxiety, somatization, interpersonal
sensitivity, hostility, and depression (alphas
ranging from .71 to .88).
Health-related quality of life.
We used the 55-item Functional Assessment of HIV
Infection (23)
to assess health-related quality of life of people
with HIV infection. This instrument has subscales for
physical well-being, emotional well-being, functional
well-being, and provider relationship (alphas ranging
from .79 to .91).
Coping
behaviors. Participants
completed the 66-item Ways of Coping Questionnaire (24)
to assess cognitive and behavioral coping strategies.
The survey has subscales for acceptance of
responsibility, confrontive coping, planful problem solving,
escape and avoidance, distancing, seeking social support,
self-control, and positive reappraisal (alphas
ranging from .61 to .78). The higher the subscale
score, the greater use the subject made of that
coping strategy.
Social
support. Respondents also
completed the 15-item Provision of Social Relations
Scale (25),
which uses six items to assess perceived social
support from family members and nine items to assess
support from friends (alphas over .85). The higher
the scores, the greater the perception subjects had of social
support from those sources.
Disclosure
of HIV infection.
Participants were asked whether they had disclosed
their HIV-positive status to immediate family, to
extended family, to a partner or spouse, to close friends,
or to casual friends.
Data analyses
Data analyses compared respondents who had thoughts of suicide
in the past week with those who had not thought about
suicide. Independent t tests were used to compare
groups on continuous demographic and health history
variables, and contingency table chi square tests
were used for categorical variables.
To test
differences between those with suicidal ideation and
those without on the mental health and coping variables, we
conducted multivariate analyses of covariance (MANCOVAs),
controlling for HIV symptom severity ratings.
MANCOVAs were conducted on four sets of dependent
variables: emotional distress measured by the SCL-90,
health-related quality of life, coping behaviors
assessed by the Ways of Coping Questionnaire, and perceived
social support. We controlled for HIV symptoms in these
analyses, using the current HIV symptom assessment,
because persons with suicidal thoughts differed in
HIV symptoms experienced, and because HIV symptoms
overlap with somatic symptoms of emotional distress (21).
Numbers of participants in each group varied because
of missing values.
We performed a
second series of analyses to compare suicidal
ideation groups while controlling for nonoverlapping depression
symptoms. Using a six-item composite from the SCL-90
depression subscale— items included feeling blue,
sleep that is restless or disturbed, crying easily,
poor appetite, feeling no interest in things, and
loss of sexual interest or pleasure— we repeated the
MANCOVAs comparing suicidal ideation groups on the
measures for emotional distress, quality of life, coping,
and social support after controlling for HIV symptoms and
symptoms of depression. The depression composite was
reliable (alpha=.81), and was highly correlated with
scores on the BDI (r=.80, p>.001). These conservative
secondary analyses served to test the effects of
suicidal ideation on mental health outcomes independently
of symptoms of depression other than those related to
thoughts of suicide.
Results
Preliminary analyses did not indicate significant differences
between the Milwaukee and the New York City samples.
Inspection of responses to the BDI suicidal ideation
item showed that 29 of the 113 participants (26
percent) had thought about taking their own lives in
the previous week. However, the immediate risk for
suicide in this group was low. Twenty-seven of them
selected the statement indicating that they had thoughts of
killing themselves but would not carry them out, and the
other two selected the statement indicating that they
would like to kill themselves. None selected the
statement indicating that they would commit suicide
if they had the chance.
Differences
were observed in the demographic and health characteristics
of respondents with suicidal ideation. Men were more
likely than women to have had suicidal thoughts; 26
men, or 31 percent, reported having had thoughts of
suicide, compared with three women, or 11 percent ( 2=4.6,
df=1, p>.05). Whites were more likely than nonwhites
to have had such thoughts, with 18 white respondents,
or 38 percent, having considered suicide, compared
with 11 members of minority groups, or 17 percent ( 2=5.8,
df=1, p>.01). Participants who identified themselves
as gay (N=53) were more likely than heterosexual and
bisexual respondents to have had suicidal ideation;
18 gay respondents, or 36 percent, compared with 11
heterosexual and bisexual respondents, or 17 percent,
had thought of killing themselves ( 2=6.4,
df=2, p>.05).
However, among
respondents who had suicidal ideation, gender, race,
sexual orientation, and health status were not independent
of one another. Suicidal ideation was most common among
white men who identified themselves as gay. In
addition, respondents who had suicidal ideation who
were currently experiencing HIV-related symptoms
(N=18, or 36 percent) were more likely than those who
were currently asymptomatic (N=11, or 17 percent) to have
considered suicide in the past week ( 2=3.9,
df=1, p>.05). None of the remaining demographic and
health characteristics differentiated persons who had
thought of suicide in the past week from those who
had not.
Emotional distress,
quality of life, and suicidal ideation
For descriptive purposes, we adjusted the BDI scores by removing
the suicidal intention item and compared those who had
thoughts of suicide and those who did not. Not
surprisingly, respondents who had thoughts of suicide
reported significantly higher levels of depression
than those who did not (mean±SD BDI score, 20.8± 8.2
versus 9.6±6.4; t=7.31, df=103, p>.01). With the
suicide intention item removed from the scale, 68 percent
of the respondents who had thoughts of suicide still
exceeded the clinical cutoff for depression on the
BDI (15 and above), compared with 16 percent of those
who did not have thoughts of suicide ( 2=26.9,
df=1, p>.01).
Results of the
MANCOVA comparing suicidal ideation groups on the
five SCL-90 subscales, treating HIV-related symptoms as
a covariant, indicated a host of significant differences
between those who had suicidal thoughts and those who
did not (F=13.14, df=6, 88, p>.01). Differences
appeared between the two groups on all five subscales
of emotional distress. Those who had suicidal
thoughts reported greater symptoms of anxiety, somatization,
hostility, interpersonal sensitivity, and depression (for
all comparisons, p>.01).
A separate
MANCOVA comparing groups on the functional health
scales, again controlling for HIV symptoms, showed differences
between suicidal ideation groups (F= 9.93, df=4, 91,
p>.01). Those who had contemplated suicide reported
poorer physical and emotional well-being as well as a
more diminished functional well-being than those who
did not have thoughts of suicide (for all
comparisons, p>.01). The difference between the two groups
on the variable for satisfaction with health care
providers was not significant.
Coping behaviors
and suicidal ideation
Results of the MANCOVA comparing the two groups after
controlling for HIV symptoms revealed significant
differences between those who had suicidal thoughts
in the past week and those who did not (F=3.5, df=8,
82, p>.01). Subsequent analyses showed that persons
who had not considered suicide reported greater use
of positive-reappraisal coping strategies than those who
had thoughts of suicide (p>.03). In contrast, those who
had contemplated suicide were significantly more
likely to use escape and avoidance strategies for
coping with HIV-AIDS than those who had not (p>.01).
On the remaining coping scales the two groups did not
differ.
Social support and
suicidal ideation
Comparisons between the groups showed that respondents who had
thoughts of suicide in the past week were significantly
more likely to have disclosed their HIV status to
their close friends than those who had not considered
suicide ( 2=4.9,
df=1, p>.05). This finding was unexpected. Although
the differences for disclosure to persons other than
close friends were not statistically significant, a
pattern in the data indicated that those who had thought about
suicide were more likely to have disclosed their HIV
status to family, friends, and partners.
However,
results of a MANCOVA comparing those who had and those
had not considered suicide on measures of social support
received from friends and family, controlling for HIV
symptoms, showed significant differences between
groups (F=9.1, df=2, 96, p>.01). Those who had
thought about suicide reported receiving less social
support from both friends and family (p>.01 in both
cases). These differences in social support occurred despite
the fact that those who had considered suicide were more
likely to have disclosed their HIV status to others.
Testing for
independent effects
We repeated the analyses for differences between the two groups
on measures of emotional distress, health-related quality
of life, coping behaviors, and social support, this
time controlling for both HIV symptoms and
nonoverlapping symptoms of depression. Significant
differences between groups were retained on all of
the emotional distress and health-related quality-of-life
scales (for all comparisons, p>.01) except somatization
and physical functioning. After depression was
controlled for, differences in use of coping
strategies between the two groups were not
significant, whereas the results for social support from family
and friends remained unchanged.
These findings
show that most differences between persons who have
thoughts of suicide and those who do not are independent
of other symptoms of depression, whereas differences in
somatization, coping strategies, and physical
functioning can be accounted for by depression.
Discussion
One in four middle-aged and older persons with HIV infection
or AIDS in our sample reported having had thoughts about
suicide in the previous week. This rate is similar to
that observed among persons who have just learned
that they are HIV positive, but higher than that
observed among persons who have had a period of weeks
or months to adjust to their HIV status (11,12).
Reflecting other findings in the literature on HIV
and suicide, our study found that men reported
greater rates of suicidal ideation than women and
that suicidal ideation was associated with HIV-related
physical symptoms (8,13).
Also consistent with previous research, our data
showed that those who had suicidal thoughts were more
likely to use escape and avoidance strategies to cope with HIV
infection and were less inclined to use
positive-reappraisal coping (8,9,10),
although these differences were accounted for in
nonoverlapping symptoms of depression. Our findings therefore
highlight the more general context of depression
associated with HIV-AIDS in older adults, of which
suicidal ideation is but one important facet.
Contrary to our
study hypothesis, we found that respondents who had
thought about suicide were more likely than those who
had not to have disclosed their HIV status to their close
friends. Nevertheless, even after controlling for
other symptoms of depression, we found that those who
had thought about suicide perceived receiving less
social support from family and friends than those who
had not.
These findings
suggest that persons who think about suicide may be
more likely to reach out to friends and perhaps others
for support. Despite such efforts, however, this group
perceived receiving less support from their families
and friends. One possible reason for the discrepancy
between disclosure and perceived social support is
the negatively biased perceptions that depressed
individuals ascribe to their social relationships (19).
Moreover, indiscriminately disclosing one's positive
HIV status may be maladaptive and therefore
consistent with other markers of emotional distress.
On the other
hand, suicidal risk may be promoted when disclosures
are met with rejection and the stigma of AIDS rather than
support. Another possibility is that some persons
with HIV-AIDS may consider suicide a last-resort
option for escaping terminal illness, in which case
thoughts of suicide serve as a coping mechanism (26).
Unfortunately, our cross-sectional study design precludes
any such causal interpretations. Our study design also
does not provide information about premorbid
depression and suicidal ideation. Prospective studies
are therefore needed to determine the sequence of
events that lead to suicidal ideation among persons
in midlife and older who are living with HIV-AIDS.
Our study is
further limited by its reliance on self-reported
states of emotional and physical health. Moreover, our
convenience sample included only subjects who were
connected with AIDS service agencies. The rates of
emotional distress and suicidal ideation observed in
our sample may differ from those of persons who are
not receiving services.
Use of a single
questionnaire item to assess suicidal ideation is
another limitation of our study. Future research should use
more comprehensive measures to assess the frequency,
duration, and extent of suicidal thoughts in
middle-aged and older people with HIV-AIDS. Finally,
our overall sample was relatively small, and the
number of people within it considering suicide was even
smaller. Thus our findings must be viewed as preliminary
and in need of replication and extension.
Conclusions
HIV-AIDS is no longer considered an epidemic of the young.
Issues connected with death and dying likely are
different in persons who are middle-aged and older
than in younger persons. Interventions designed for
people who have HIV-AIDS should be tailored to
reflect their relevant developmental contexts. Persons who are
middle-aged and older who are living with HIV-AIDS and are
at risk for suicide require comprehensive mental
health services, given the breadth and depth of their
emotional distress and functional limitations. Such
services may be integrated with available HIV care
systems such as case management and multiservice
agencies. Counseling, enhancing perceived support, and
increasing coping resources for persons who have
thoughts of suicide but are not yet in need of crisis
intervention should be considered a priority in
HIV-AIDS care services.
Acknowledgments
This research was supported by grant R03-AG-16034 from the
National Institute of Aging and grants R01-MH-57624
and P30-MH-52776 from the National Institute of
Mental Health.
Footnotes
The authors are affiliated with the Center for AIDS Intervention
Research at the Medical College of Wisconsin in Milwaukee,
8701 Watertown Plank Road, Milwaukee, Wisconsin 53226
(e-mail,
sethk@mcw.edu ).
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