Suicide attempts among adults denying active suicidal ideation: An examination of the relationship between suicidal thought content and suicidal behavior.

OBJECTIVES: The purpose of the current study was to examine the possibility that there are multiple pathways to suicidal behavior by conducting a fine-grained investigation of the relationship between suicidal thought content and suicidal behavior. METHODS: Six thousand two hundred US adults completed self-report measures of suicidal thoughts and behaviors. Descriptive statistics and logistic regression were used to examine the relationship between suicidal thoughts and behaviors. RESULTS: About 36.0% of participants with a lifetime suicide attempt denied ever experiencing any active suicidal thoughts and 11.0% denied ever experiencing any suicidal thoughts; 53.8% of recent attempters denied recent active suicidal thoughts and 22.6% denied any recent suicidal thoughts. Additionally, the sole presence of passive suicidal ideation was associated with increased odds of lifetime and past-month suicide attempts. CONCLUSIONS: These findings suggest that there are likely multiple pathways to suicide, some of which do not involve progressively worsening suicidal thoughts.

Psychometric evaluation of the Suicide Cognitions Scale-Revised (SCS-R).

The measurement of self-reported suicide risk can be complicated in medical settings due to patient apprehension about the potential consequences of self-disclosure. The Suicide Cognitions Scale (SCS) was designed to assess suicide risk by measuring a range of suicidogenic cognitions (e.g., hopelessness, perceived burdensomeness) collectively referred to as the suicidal belief system. The SCS's concurrent, known groups, and prospective validity for suicidal thoughts and behaviors have previously been supported. The present study examined the factor structure, known-groups, and concurrent validity of a revised, 16-item version of the SCS (SCS-R), which removed two items that explicitly used the word "suicide" and changed item scoring from a 1-5 to 0-4 scale, thereby improving the interpretation of scores. In a sample of 2,690 primary care patients presenting for routine medical care at one of six US military clinics, results of bifactor analysis supported the scale's unidimensionality. The SCS-R significantly differentiated participants with a history of suicide attempts and was significantly correlated with frequency of thoughts about death and self-harm during the previous 2 weeks. Results align with earlier research and provide psychometric support for the SCS-R.

Lethal Means Counseling, Distribution of Cable Locks, and Safe Firearm Storage Practices Among the Mississippi National Guard: A Factorial Randomized Controlled Trial, 2018-2020.

Objectives. To examine whether lethal means counseling and provision of cable locks prompt safe firearm storage relative to control among firearm-owning members of the Mississippi National Guard.Methods. This randomized controlled trial utilized a 2 × 2 factorial design (lethal means counseling vs control, provision of cable locks vs no cable locks). Follow-up assessments took place at 3 and 6 months after baseline. Data were collected (n = 232; 87.5% male; mean age = 35.01 years; 77.2% White) from February 2018 through July 2020.Results. Relative to control, lethal means counseling and provision of cable locks resulted in greater adoption of several safe storage methods over time. Lethal means counseling outperformed control (3 months: 55.0% vs 39.0%; odds ratio [OR] = 1.91). Cable locks outperformed control at 3 and 6 months on number of storage methods (1.41 vs 1.11; d = 0.29 and 1.34 vs 1.16; d = 0.15, respectively) and locking devices (59.8% vs 29.9%; OR = 3.49 and 58.4% vs 35.8%; OR = 2.52, respectively)Conclusions. Lethal means counseling and cable locks can result in sustained changes in firearm storage.Public Health Implications. The military may benefit from lethal means counseling, perhaps administering at point of entry.Trial Registration. Clinical Trials.gov identifier: NCT03375099.

An examination of preferred messengers on firearm safety for suicide prevention.

This study sought to determine differences in preferred messengers on the topic of safe firearm storage and suicide prevention between firearm owners and non-firearm owners, and among firearm owners of different racial groups and sexes. Participants were 6200 United States residents recruited via Qualtrics Panels to complete an online survey. Data were collected during March 2020. The total sample and all subsamples ranked law enforcement, current military personnel, and military veterans as the top three most credible sources to discuss firearm safety for suicide prevention. Significant differences existed among the mean ranking of sources between firearm owners and non-firearm owners as well as between several subgroups of firearm owners. The identical ranking of the top three sources indicates that these groups agree on the relative credibility of multiple sources, although the average level of credibility for particular sources may vary. These findings highlight that the effectiveness of messaging on safe firearm storage may hinge on the identity of the individual delivering the message and provide an initial roadmap for how to consider packaging specific messages.

Improving Suicide Risk Screening to Identify the Highest Risk Patients: Results From the PRImary Care Screening Methods (PRISM) Study.

PURPOSE: Over 95% of patients who screen positive on the Patient Health Questionnaire-9 (PHQ-9) suicide risk item do not attempt or die by suicide, which could lead to unnecessary treatment and/or misallocation of limited resources. The present study seeks to determine if suicide risk screening can be meaningfully improved to identify the highest-risk patients. METHODS: Patients eligible to receive medical treatment from the US Department of Defense medical system were recruited from 6 military primary care clinics located at 5 military installations around the United States. Patients completed self-report measures including the PHQ-9 and 16 items from the Suicide Cognitions Scale (SCS) during routine primary care clinic visits. Postbaseline suicidal behaviors (suicide attempts, interrupted attempts, and aborted attempts) were assessed by evaluators who were blind to screening results using the Self-Injurious Thoughts and Behaviors Interview. RESULTS: Among 2,744 patients, 13 (0.5%) engaged in suicidal behavior in the 30 days after screening and 28 (1.0%) displayed suicidal behavior in the 90 days after screening. Multiple SCS items differentiated patients with suicidal behavior less than 30 days after screening positive for suicide risk. Augmenting the PHQ-9 suicide risk item with SCS items improved the identification of patients who were most likely to have suicidal behavior within a month of screening positive without sacrificing sensitivity. CONCLUSION: Among primary care patients who screen positive for suicide risk on the PHQ-9, SCS items improved screening efficiency by identifying those patients who are most likely to engage in suicidal behavior within the next 30 days.

Nightmares and Insomnia in the US National Guard: Mental and Physical Health Correlates.

BACKGROUND: Nightmares and insomnia are significant concerns that commonly co-occur with each other and with other health disorders. Limited research has examined the unique and shared aspects of insomnia and nightmares, and little is known about sleep in US National Guard personnel. This study sought to determine the prevalence and psychosocial correlates of nightmares with and without insomnia in US National Guard personnel. METHOD: National Guard personnel (N = 841) completed an online survey and were classified as having nightmares only, insomnia only, both, or neither, using a minimum nightmare frequency of "less than once a week" and an Insomnia Severity Index cutoff of ≥ 15. Analyses examined differences in demographics, physical health, and psychosocial variables and in the prevalence of nightmares and insomnia in personnel with physical and mental health problems. RESULTS: In this sample, 32% reported nightmares only, 4% reported insomnia only, and 12% reported both. Those in the youngest age group (18-21) were more likely to have no nightmares or insomnia. Those with both nightmares and insomnia had more deployments. Nightmares and insomnia were associated with poorer physical and mental health and greater prevalence of comorbid physical and mental health conditions. Personnel with both insomnia and nightmares reported the greatest severity of comorbid conditions. CONCLUSION: US National Guard personnel with nightmares and/or insomnia reported worse mental and physical health impairment than those without these conditions. Personnel may benefit from screening for nightmares and insomnia and referrals for evidence-based treatment.

The effect of time outdoors on veterans receiving treatment for PTSD.

OBJECTIVES: Duration, frequency, and intensity of nature exposure link to different physical and psychological benefits. The present study aimed to determine how time outdoors affected military veterans' posttraumatic stress disorder (PTSD) symptomology during PTSD treatment. METHOD: Hypotheses regarding time outdoors and the effect of program duration on PTSD symptoms were examined using multilevel models. The authors hypothesized that hours outdoors, both within- and between-persons, would predict reduced PTSD symptomology, program duration would predict reduced PTSD symptomology, and that hours outdoors and program duration would be significant when accounting for the other. RESULTS: The present study found that time outdoors correlated with participants' decreased PTSD symptomology: the more time participants spent outdoors, the greater the reduction in their PTSD symptoms. CONCLUSION: The effect of time outdoors was significant within-person, not between persons, suggesting that nature exposure may be used as an adjunct to traditional mental health treatment where exposure or dosage should be person-specific.

Nonlinear change processes and the emergence of suicidal behavior: a conceptual model based on the fluid vulnerability theory of suicide.

Although ideation-to-action theories of suicide aim to explain the emergence of suicidal behaviors, researchers have primarily focused on the content of underlying mechanisms (i.e., who dies by suicide). Much less attention has focused on the temporal dynamics of suicide risk (i.e., when suicide occurs). The fluid vulnerability theory conceptualizes suicide as an inherently dynamic construct that follows a nonlinear time course. Newer research implicates the existence of multiple nonlinear change processes among suicidal individuals, some of which appear to be associated with the emergence of suicidal behavior. The cusp catastrophe model provides a useful model for conceptualizing these change processes and provides a foundation for explaining a number of poorly understood phenomena including sudden emergence of suicidal behavior without prior suicidal planning. The implications of temporal dynamics for suicide-focused theory, practice, and research are discussed.

Military sexual trauma and suicidal behavior among National Guard personnel.

BACKGROUND: Preliminary evidence suggests military sexual trauma (MST) may be associated with increased risk for suicidal behaviors among active duty military personnel and veterans. Among National Guard personnel, a high-risk subgroup, MST and suicide risk have not received much empirical attention. PURPOSE: To examine the association of MST with suicide ideation and suicide attempts among National Guard personnel. PROCEDURES: N = 997 National Guard personnel from Idaho and Utah participated in an anonymous online survey. Weighted analyses were conducted to minimize sampling bias. MAIN FINDINGS: 9% of participants had a history of MST (6% of men, 28% of women). Among participants reporting MST, 68% reported a service member perpetrator and 44% reported a civilian perpetrator (12% reported both). A history of MST was associated with significantly increased risk for lifetime suicide attempt. MST remained a significant predictor of lifetime suicide attempt even when restricting the sample to the subgroup with a history of suicidal thoughts (n = 257, 27% of full sample). When adjusting for premilitary sexual victimization, MST was no longer significantly associated with lifetime suicide attempts, but premilitary sexual victimization was. CONCLUSIONS: The rate of MST among National Guard personnel is comparable to rates among active duty military personnel, although the perpetrators of MST are less likely to be service members. MST is a risk factor for suicide attempts, but premilitary sexual victimization is a relatively stronger risk factor.

Examining the effectiveness of an intensive, 2-week treatment program for military personnel and veterans with PTSD: Results of a pilot, open-label, prospective cohort trial.

OBJECTIVE: This study aimed to examine the effectiveness of cognitive processing therapy (CPT) for posttraumatic stress disorder (PTSD) when administered on a daily basis during a 2-week period of time. METHOD: In an open-label, prospective cohort pilot trial, 20 U.S. military personnel and veterans diagnosed with PTSD or subthreshold PTSD participated in 12 daily sessions of CPT. Primary outcomes included Clinician Administered PTSD Scale for DSM-5 and PTSD Checklist for DSM-5 scores. Secondary outcomes included Patient Health Questionnaire-8 and Beck Scale for Suicide Ideation (BSSI) scores. Interviews and self-report scales were completed at pretreatment, posttreatment, and 6 months after the treatment. RESULTS: Relative to baseline, PTSD symptom severity and rates of PTSD diagnosis were significantly reduced at posttreatment and 6-month follow-up. Depression symptom severity did not significantly improve, but suicide ideation significantly decreased at 6-month follow-up. CONCLUSIONS: Daily administration of CPT is associated with significant reductions in PTSD and suicide ideation.

Exposure to suicide is associated with increased risk for suicidal thoughts and behaviors among National Guard military personnel.

BACKGROUND: Research suggests that individuals who know someone who died by suicide are at increased risk for posttraumatic stress disorder (PTSD), depression, and recent suicidal thoughts. Studies have not yet investigated the association of suicide exposure with suicide attempts, however, especially among high-risk subgroups of military personnel such as the National Guard. PROCEDURES: An anonymous online survey was completed by 971 military personnel assigned to the National Guard in Utah and Idaho. Weighted analyses were conducted to ensure demographic matching to the full population. Univariate and multivariate logistic regression was used to test the association of suicide exposure with psychiatric condition, suicide ideation, and suicide attempts. MAIN FINDINGS: 65.4% of National Guard personnel reported knowing someone who had died by suicide. On average, participants knew 3.0 (SD=2.0) suicide decedents. Total number of known suicide decedents was associated with significantly increased risk for PTSD (OR=1.18, p=.008), depression (OR=1.19, p=.003), and suicide ideation (OR=2.48, p<.001), but not suicide attempt (OR=1.34, p=.472). Perceived closeness to the suicide decedent was associated with significantly increased risk for PTSD (OR=1.54, p<.001), depression (OR=1.36, p=.031), suicide ideation (OR=1.24, p=.039), and suicide attempt (OR=1.69, p=.026). The majority of participants who experienced suicidal thoughts and attempts after the suicide exposure had a previous history of suicide ideation. CONCLUSIONS: Suicide exposure is common among National Guard personnel, and is associated with increased risk for PTSD, depression, and suicidal thoughts and behaviors. Risk is highest for those personnel who know multiple suicide decedents and were closer to the suicide decedent.

DEPRESSION MEDIATES THE RELATION OF INSOMNIA SEVERITY WITH SUICIDE RISK IN THREE CLINICAL SAMPLES OF U.S. MILITARY PERSONNEL.

BACKGROUND: A growing body of empirical research suggests insomnia severity is directly related to suicide ideation, attempts, and death in nonmilitary samples, even when controlling for depression and other suicide risk factors. Few studies have explored this relationship in U.S. military personnel. METHODS: The present study entailed secondary data analyses examining the associations of insomnia severity with suicide ideation and attempts in three clinical samples: Air Force psychiatric outpatients (n = 158), recently discharged Army psychiatric inpatients (n = 168), and Army psychiatric outpatients (n = 54). Participants completed the Beck Scale for Suicide Ideation, the Beck Depression Inventory-II or Patient Health Questionnaire-9, the Insomnia Severity Index, and the Posttraumatic Stress Disorder Checklist at baseline; two samples also completed these measures during follow-up. RESULTS: Sleep disturbance was associated with concurrent (ß's > 0.21; P's < 0.059) and prospective (ß's > 0.39; P's < 0.001) suicide ideation in all three samples. When adjusting for age, gender, depression, and posttraumatic stress, insomnia severity was no longer directly associated with suicide ideation either concurrently (ß's < 0.19; P's > 0.200) or prospectively (ß's < 0.26; P's > 0.063), but depression was (ß's > 0.22; P's < 0.012). Results of a latent difference score mediation model indicated that depression mediated the relation of insomnia severity with suicide ideation. CONCLUSIONS: Across three clinical samples of military personnel, depression explained the relationship between insomnia severity and suicide risk.

Dangerous Words? An Experimental Investigation of the Impact of Detailed Reporting About Suicide on Subsequent Risk.

OBJECTIVE: Media reporting guidelines exist for suicide-related content; however, no experimental studies have examined the impact of guideline violations. As such, we utilized an experimental design to determine whether reading an article about suicide that violated guidelines would impact mood and suicidality relative to the same article without violations and to an article detailing death by cancer, both immediately and during 1-month follow-up. METHOD: 273 students were randomly assigned to read one of three articles (1) an article that violated suicide reporting guidelines, (2) the same article with violations removed, or (3) an article that details death by cancer. RESULTS: Individuals assigned to read the original suicide article were no more upset immediately afterwards or during 1-month follow-up. Amongst participants with prior ideation, those who read the original article reported a lower likelihood of future attempt relative to either other condition. CONCLUSION: Results indicate some reporting guidelines may be unnecessary. Amongst individuals at risk for suicide, some guideline violations may be associated with a decreased likelihood of future attempt and result in a decrease in negative affect. Clinically, these results highlight the potential utility of exposing clients to in depth educational materials about suicide while mitigating concerns regarding certain aspects of the content.

Suicide attempts before joining the military increase risk for suicide attempts and severity of suicidal ideation among military personnel and veterans.

OBJECTIVE: Past self-injurious thoughts and behaviors (SITB) are robust predictors of future suicide risk, but no studies have explored the prevalence of SITB occurring prior to military service among military personnel and veterans, or the association of premilitary SITB with suicidal ideation and suicide attempts during or after military service. The current study explores these issues in two separate samples. METHOD: Self-report data were collected from 374 college student veterans via anonymous only survey (Study 1) and from 151 military personnel receiving outpatient mental health treatment (Study 2). RESULTS: Across both studies, premilitary suicide attempts were among the most prominent predictor of subsequent suicide attempts that occurred after joining the military, even when controlling for demographics and more recent emotional distress. Among military personnel who made a suicide attempt during or after military service, approximately 50% across both samples experienced suicidal ideation and up to 25% made a suicide attempt prior to joining the military. Military personnel and veterans who made suicide attempts prior to joining the military were over six times more likely to make a later suicide attempt after joining the military. In Study 2, significantly more severe current suicidal ideation was reported by participants with histories of premilitary suicide risk, even when controlling for SITB occurring while in the military. CONCLUSIONS: Military personnel and veterans who experienced SITB, especially suicide attempts, prior to joining the military are more likely to attempt suicide while in the military and/or as a veteran, and experience more severe suicidal crises.

Threat perceptions, defensive behaviors, and the perceived suicide prevention value of specific firearm storage practices.

INTRODUCTION: Secure firearm storage has been proposed as a suicide prevention method within the military; however, secure storage practices are uncommon. Service members may perceive limited value in secure storage as a suicide prevention tool and threat-related factors may influence such perceptions. METHOD: A nationally representative sample of firearm-owning military service members (n = 719) was recruited between December 3, 2021 and January 4, 2022 to complete a self-report survey by Ipsos using their KnowledgePanel calibration approach to optimize representativeness. RESULTS: Threat sensitivity was associated with less perceived suicide prevention value across all within-home storage practices as well as out-of-home storage. Defensive firearm ownership was associated with less perceived out-of-home storage value. Contrary to expectations, PTSD symptoms were associated with greater perceived suicide prevention value across all storage practices and intolerance of uncertainty was associated with greater perceived out-of-home storage value. DISCUSSION: Perceptions of, sensitivity to, and reactions to threat represent a complicated confluence of factors that may influence firearm views and behaviors in disparate ways. Viewing the world as dangerous and other people as a threat may limit perceived suicide prevention value for secure storage and increase the drive for firearm access.

Measurement invariance of the Suicide Cognitions Scale-Revised (SCS-R).

The Suicide Cognitions Scale-Revised (SCS-R) is a unidimensional measure of suicidal cognitions theorized to assess the suicide belief system. Several solutions have been proposed for the Suicide Cognitions Scale and SCS-R (e.g., bifactor model with two specific factors, bifactor model with two specific factors, three correlated factors model). Research indicates the endorsement of thoughts of suicide and suicide-related cognitions varies across demographics. Thus, the current investigation tested the measurement invariance (MI) of the SCS-R across gender, race, and sexual orientation within these proposed solutions and a unidimensional model. A national sample of N = 10,625 adults completed an online survey that included the SCS-R and self-report measures of demographics. Results indicated that the bifactor model with three specific factors, the bifactor model with two specific factors, and the three correlated factors models achieved scalar invariance across gender, race, and sexual orientation; a unidimensional model was not scalar invariant by gender. Tests of latent mean differences revealed significant differences in the general factor (i.e., suicidal belief system) and the specific unlovability, unbearability, and unsolvability factors between a few demographic groups. Implications for theory, measurement, and modeling are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Determining who military service members deem credible to discuss firearm safety for suicide prevention.

OBJECTIVES: To examine rankings of credible sources for discussing secure storage within a representative sample of firearm-owning service members, and examine how combinations of demographic variables impact the ranking of credible sources. METHODS: The probability-based sample was collected with the help of Ipsos. Participants were US service members who owned a firearm at the time of the survey (n = 719). RESULTS: The total sample ranked service members, Veterans, and members of law enforcement as the most credible sources and faith leaders, casual acquittances, and celebrities as the least credible sources. Black men ranked the NRA as a highly credible source whereas Black females ranked the NRA as one of the least preferred sources. Regardless of political preference, those who lived in non-metropolitan rural environments ranked members of law enforcement as highly credible sources. Those who lived in non-metropolitan rural and urban settings and identified as liberal ranked the National Shooting Sports Foundation as a highly credible source. CONCLUSIONS: Law enforcement officers, military members, and Veterans are ranked as highly credible sources by most subgroups of firearm-owning service members. Leveraging these voices in firearm safety conversations is necessary, may increase adherence to secure storage recommendations, and ultimately reduce suicide.

Entrapment in the military context: Factor structure and associations with suicidal thoughts and behaviors.

BACKGROUND: Improved understanding of how US service members transition from chronic/baseline to acute suicide risk is warranted. One such model, the Integrated Motivational Volitional Model of Suicide, posits entrapment as central to this process. However, entrapment has not been extensively investigated within military populations. METHODS: This study examines the factor structure, reliability, and predictive validity of the Entrapment Scale (E-Scale) within a military population. Exploratory structural equation modeling (SEM) and confirmatory factor analysis compared one- versus two-factor structures of the E-Scale. Autoregressive SEM assessed if E-Scale scores predicted suicidal ideation and suicide attempt likelihood at 6- and 12-month follow-up, and examined whether the impact of entrapment was moderated by social support (i.e., appraisal, tangible, and belonging). RESULTS: Results favored a two-factor solution (external and internal) of entrapment. The relationship between entrapment and suicide outcomes was moderated by perceived social support but in unexpected directions. Unexpectedly, social support strengthened the relationship between external entrapment and suicide outcomes for most models. Only tangible support moderated the relationship between internal entrapment (IE) and suicide outcomes as predicted. CONCLUSIONS: IE is linked with suicidal ideation in the short-term, whereas external entrapments relationship with suicide outcomes may reflect more persistent social challenges for military members.

Project Safe Guard: Challenges and opportunities of a universal rollout of peer-delivered lethal means safety counseling at a US military installation.

INTRODUCTION: The US Department of Defense recommends lethal means safety counseling (LMSC) to promote firearm injury prevention via secure storage of personal firearms. We describe the rollout of a universal, peer-delivered adaptation of Project Safe Guard (PSG)-a brief, single-session LMSC discussion-at a US Space Force installation. METHOD: Program evaluation data were collected via anonymous, voluntary, and online surveys. Of approximately 862 eligible active-duty service members and embedded civilians, 324 completed the preprogram survey and 68 and 37 completed the 1- and 2-month follow-ups, respectively. RESULTS: At preprogram, 69.1% agreed that peer-delivered LMSC is appropriate. After rollout, 100% of the 222 firearm locking devices available to service members were requested from the on-base Violence Prevention Integrator. The effectiveness of PSG was indeterminable due to the low survey response rates. CONCLUSIONS: Despite strong preprogram support for peer-delivered LMSC and behavioral indicators of secure firearm storage (e.g., firearm locking device requests), several challenges limited the uptake and evaluability of the PSG program in this naturalistic environment, including military survey fatigue and competing mission priorities. Additional work is needed to determine the effectiveness of peer-delivered LMSC in a military context. Sustained base support and military-civilian collaborations will be critical.