Objectives: Suicide is a prevalent problem in older adults. One of the best predictors of suicide in older adults is suicide ideation; suicide ideation has been frequently associated with depression. However, suicide ideation is not always present when an older adult is depressed and is sometimes present when an older adult is not depressed. Perceived burdensomeness, a recently proposed risk factor [Joiner Jr, T.E. (2005)], has been linked to suicide ideation in depressed samples and in older adults. Thus, perceived burdensomeness may be the necessary risk factor for suicide ideation. Method: The Geriatric Suicide Ideation Scale (GSIS; [Heisel et al. (2006)]), Center for Epidemiologic Studies Depression (CES-D; [Radloff, L.S. (1977)]) scale, and Suicide Cognitions Scale (SCS; [Rudd, M.D., Schmitz, B., McClenen, R., Joiner, T., Elkins, G., & Claassen, C.A. (n.d.)]) were completed by a community sample of older adults recruited from primary care clinics (n = 106). A regression analysis was conducted following Baron and Kenny's [1986] guidelines to test the hypothesis that perceived burdensomeness (measured by the SCS perceived burdensomeness subscale) mediates the relation between depression (assessed with the CES-D) and suicide ideation (measured by the GSIS suicide ideation subscale) in older adults. Results: Perceived burdensomeness mediated the relation between depression and suicide ideation, accounting for 68.3% of the variance in suicide ideation. Conclusion: Perceived burdensomeness may explain the relation between depression and suicide ideation. Clinicians seeing older adults should assess for depression and perceived burdensomeness when determining suicide risk. Future research directions include treatment studies for perceived burdensomeness as a way to reduce suicide ideation.

Research is needed that examines theory-based risk factors for suicide in older adults. The interpersonal theory of suicide (Joiner, 2005; Van Orden et al., 2010) provides specific hypotheses regarding variables that contribute to the development and variability in death ideation and suicide ideation; however, data suggest that older adults may not report suicide ideation in research settings or to treatment providers even when they experience it (Heisel et al., 2006). The purpose of this study was to test theory-based predictions regarding variables that contribute to death ideation (i.e., a passive wish to die) and suicide ideation in older adults. This study introduces the application of zero-inflated negative binomial regression (ZINB) to the study of suicidal behavior. ZINB was used to test theory-based predictions, while also testing a hypothesis regarding variables associated with denial of suicide ideation among participants who endorsed risk factors associated with suicide risk. Participants included 239 adults aged 60 and older recruited from primary care clinics who completed a variety of self-report instruments. The results of this study indicated that perceived burdensomeness and hopelessness were significantly associated with variability in death ideation. Additional results indicated that elevated scores on thwarted belonging, the interaction between perceived burdensomeness and hopelessness, and the interaction between thwarted belonging and perceived burdensomeness were associated with a significant reduction in the probability of a participant being a suicide ideator. These results offer substantial support for the interpersonal theory of suicide. The implications of these findings are discussed.

The Brief Smell Identification Test (BSIT) is a commonly used measure of olfactory functioning in elderly populations. Few studies have provided normative data for this measure, and minimal data are available regarding the impact of sociodemographic factors on test scores. This study presents normative data for the BSIT in a sample of English- and Spanish-speaking Hispanic and non-Hispanic Whites. A Rasch analysis was also conducted to identify the items that best discriminated between varying levels of olfactory functioning, as measured by the BSIT. The total sample included 302 older adults seen as part of an ongoing study of rural cognitive aging, Project FRONTIER. Hierarchical regression analyses revealed that BSIT scores require adjustment by age and gender, but years of education, ethnicity, and language did not significantly influence BSIT performance. Four items best discriminated between varying levels of smell identification, accounting for 59.44% of total information provided by the measure. However, items did not represent a continuum of difficulty on the BSIT. The results of this study indicate that the BSIT appears to be well-suited for assessing odor identification deficits in older adults of diverse backgrounds, but that fine-tuning of this instrument may be recommended in light of its items’ difficulty and discrimination parameters. Clinical and empirical implications are discussed.

Prison inmates are exposed to a number of adverse conditions prior to and during incarceration that place them at risk for suicide. The interpersonal theory of suicide may prove useful in better understanding suicide in prisons, allowing for more effective prevention and treatment programs. However, no studies of the interpersonal theory have been conducted in prison populations. Further, there have been no studies examining the factor structure of the assessment of one of the theory's main constructs: the acquired capability for suicide. The current study examined the factor structure of the Acquired Capability for Suicide Scale in a sample of male prison inmates. We found that a 4-factor model provided the best statistical and conceptual fit, though only 3 of these factors were meaningful with an additional method-factor. The 3 resulting factors were each associated with previous exposure to painful and provocative events, but none differentiated suicide attempter status. Results suggest that the interpersonal theory has promise in application to suicide in prison populations, but more work is needed to develop a self-report measure of acquired capability, particularly as it relates to prisoners.

Interpersonal Theory of Suicide constructs were examined in individuals with physical disabilities, a population identified as having heightened suicidal ideation. Students (N = 184) answered online-based self-report questionnaires. Students with physical disabilities (n = 49) were expected to endorse higher levels of constructs relative to other students (n = 133). Analyses of covariance indicated that those with disabilities reported higher perceived burdensomeness, but not thwarted belongingness, fearlessness about death, or suicidal ideation. Suicide prevention efforts, particularly in university settings, may benefit from focusing on reducing perceived burdensomeness in this population, as these individuals may be at heightened risk.