BACKGROUND: Suicidal ideation variability refers to within-day fluctuations in suicidal ideation, and has recently been proposed as an indicator of suicide risk. However, not much is known yet about its correlates and clinical relevance.
METHODS: We examined characteristics of real-time suicidal ideation using Ecological Momentary Assessment in 82 individuals with current active suicidal ideation. Data were collected four times daily over 21 days. Latent profile analysis was used to identify subtypes of suicidal ideation. We further examined sociodemographic and clinical correlates of the profiles, and their association with the occurrence of suicide attempts during a 1-year follow-up.
RESULTS: We identified three \"digital\" phenotypes of suicidal ideation that differed on the frequency, intensity and variability of ideation. The profiles were: high frequency, high intensity, moderate variability (Phenotype 1), moderate/high frequency, moderate intensity, high variability (Phenotype 2), and moderate frequency, low intensity, low variability (Phenotype 3). Phenotypes 1 and 2 were associated with a worse clinical profile at baseline (higher suicidal ideation and depressive symptom severity), and increased odds of suicide attempt during follow-up, compared to Phenotype 3. Phenotype 1 was further characterized by repeated suicidal behavior.
CONCLUSIONS: Two phenotypes of real-time suicidal ideation were identified that appear to confer a higher risk of suicidal behavior in the near future (12 months). These phenotypes were characterized by higher variability of suicidal ideation-and also higher intensity and frequency of ideation. Considering the small sample size, the clinical usefulness of the profiles remains to be demonstrated.

We investigated the association between sedentary behavior (SB) and wish to die (WTD; i.e., feeling that one would be better off dead or wishing for one\'s own death), and the extent to which this can be explained by sleep problems, depression, anxiety, loneliness, perceived stress, and social network in a nationally representative sample of adults aged ≥50 years from Ireland. Cross-sectional data from Wave 1 of the Irish Longitudinal Study on Ageing 2009-2011 were analyzed. WTD was defined as answering affirmatively to the question \"In the last month, have you felt that you would rather be dead?\" SB was used as a continuous variable (hours/day), and also as a categorical (< or ≥8 h/day) variable. Multivariable logistic regression and mediation analyses were conducted. Data on 8163 adults aged ≥50 years were analyzed [mean (SD) age 63.6 (9.1) years; 48.0% males]. Overall, ≥8 (vs. <8) hours/day of SB was associated with a significant 2.04 (95%CI = 1.50-2.76) times higher odds for WTD, while a 1-h increase in SB per day was associated with 1.11 (95%CI = 1.06-1.16) times higher odds for WTD. Mediation analysis showed that sleep problems, depression, loneliness, perceived stress, and social network explained a modest proportion of the association between SB and WTD (mediated percentage 9.3%-14.8%). The present cross-sectional study found that increasing or higher levels of SB is positively associated with WTD. Addressing the identified potential mediators may reduce WTD among people who are sedentary. However, future longitudinal and intervention studies are needed to make concrete recommendations.

Background: Sometimes during real or presumed life-threatening and/or near-death circumstances, an individual undergoes an altered state of consciousness referred to as a near-death experience (NDE). The prevalent position in the field of NDE research for the last several decades has been that such experiences result in positive antisuicidal attitudes and that it is highly unlikely that experients will try to kill themselves afterward. In addition, the important consideration of passive suicidal ideation is neglected in NDE research. Aims: To question the premature assumption that people are highly unlikely to die by suicide after an NDE. Method: Four case studies of suicide after an NDE are provided and examined. Results: Although important quantitative data are still needed, it can no longer be argued that people do not die by suicide after an NDE. Limitations: Only four cases were available for examination, and the degree of impact that the NDE had on their suicide is uncertain. Conclusion: Much more research is needed on suicide risk post NDE. In the meantime, the NDE should not be ignored in suicide assessments, but therapists and other relevant professionals need to be attentive to any possible indications of either active or passive suicidal ideation post NDE.

This study examines whether adverse childhood experiences are associated with passive suicidal ideation in later life and whether religious attendance moderates this association among U.S. older adults. To this end, logistic regression analyses were conducted using data from the 2016 Health and Retirement Study. The results show that poor childhood health, lack of parental affection, and childhood trauma are all positively associated with passive suicidal ideation in later life. However, religious attendance modifies the association between childhood health and passive suicidal ideation. For instance, poor childhood health is associated with greater odds of passive suicidal ideation only for older adults who never attend religious services, while this is not the case for those who attend religious services. Yet, the associations of parental affection and childhood trauma with passive suicidal ideation do not appear to differ by religious attendance. We discuss the theoretical implications of these findings for views about childhood adversity, religion, and suicide risk in later life.

Background: The literature has focused on explicit communications of suicidal ideation, although such communications are infrequent and less overt symptoms are comparable indicators of suicide risk. Aims: Our aim was to understand how clinicians consider inexplicit suicide risk factors in assessments of risk. Method: A national sample of 75 psychiatric crisis clinicians were provided with three vignettes, which varied in nine variables related to suicide risk. Clinicians rated imminent suicide risk and identified an appropriate level of care for each hypothetical patient. Results: Prior suicide attempt, intent to die, presence of a suicide plan, desire to die, hopelessness, burdensomeness, and passive suicidal ideation (defined as a combination of hopelessness, burdensomeness, desire to die, and anhedonia) significantly impacted risk perception while depression and anhedonia did not. Level of care was significantly associated with passive suicidal ideation, suicide plan, desire to die, and hopelessness. Limitations: Limitations of the study include its small sample size, experienced clinicians, and reliance on hypothetical patients. The study design did not allow for all variables to be compared against one another. Conclusion: Clinicians considered less overt risk factors for suicide when assessing risk. Future research should examine whether this knowledge is applied in real-life scenarios and if less experienced clinicians equally consider these risk factors.

South African communities continue to experience elevated incidence and prevalence of HIV infection. Passive suicidal ideation (PSI) may be one expression of distress in high prevalence communities. We report the prevalence of PSI and examine the relationship between PSI and participation in community organizations in a semi-rural sample of South African adults (N = 594). The prevalence of PSI in the 2 weeks prior to the interview was 9.1 %. Members of burial societies (Χ (2) = 7.34; p = 0.01) and stokvels (Χ (2) = 4.1; p = 0.04) (community-based savings groups) reported significantly less PSI compared to other respondents. Using a multivariate model adjusted for demographic characteristics, psychological distress, and socioeconomic status, we found lower odds of reporting PSI for members of burial societies (OR 0.48, CI 0.25 -0.91). Participation in community organizations that provide contextually salient resources in settings with high levels of distress may be a resource for mental health.

To examine the associations between health conditions and passive suicidal ideation in middle-aged and older adults.
Multivariate logistic regression analyses were conducted on data from 35,664 middle-aged and older adults from the Survey of Health, Ageing, and Retirement in Europe. Mediation analyses were also conducted to test the roles of disability and depression in risk of ideation.
After including demographic variables, disability, depression, and other health conditions as covariates, heart attack, diabetes/high blood sugar, chronic lung disease, arthritis, ulcer, and hip/femoral fractures were associated with increased odds of passive suicidal ideation. When grouped by organ systems, conditions affecting the endocrine, respiratory, and musculoskeletal systems were associated with increased odds of passive suicidal ideation, as was the total number of conditions. Individuals with greater numbers of health conditions exhibited greater levels of disability and depression, which partially explained the increased risk of passive suicidal ideation among those with more health conditions.
Certain specific health conditions, as well as total number of conditions, are associated with passive suicidal ideation in middle age and older adulthood. Health is a critical risk factor for suicidal ideation in late life and should be further studied in this particularly at-risk population.