Chronic Pain, Hopelessness, and Suicide Risk Among Adult Medical Inpatients.

BACKGROUND: Medically ill adults are at elevated risk for suicide. Chronic pain and hopelessness are associated with suicide; however, few studies have examined the interaction between chronic pain and hopelessness in predicting suicide risk among hospitalized adults. OBJECTIVE: This study aimed to describe the association between chronic pain, hopelessness, and suicide risk, defined as recent suicidal ideation or lifetime suicidal behavior. In addition, we examined the interaction between chronic pain and hopelessness. METHODS: This was a secondary analysis of a multisite study to validate the Ask Suicide-Screening Questions (ASQ) among adult medical inpatients. Participants reported if they experienced chronic pain that impacted daily life and if they felt hopeless about their medical condition and provided their current pain rating on a 1 to 10 scale, with 10 being the most severe pain. A t-test compared pain severity scores by ASQ outcome. A binary logistic regression model described the association between chronic pain, hopelessness, and suicide risk; parameter estimates are expressed as odds ratios (OR) for interpretation. The interaction between chronic pain and hopelessness was examined in both the transformed (logit) and natural (probability) scales of the generalized linear model. RESULTS: The sample included 720 participants (53.2% male, 62.4% White, mean age: 50.1 [16.3] years, range = 18-93). On the ASQ, 15.7% (113/720) of patients screened positive. Half (360/720) of the sample self-reported chronic pain. Individuals who screened positive had higher pain rating scores than those who screened negative (t = -4.2, df = 147.6, P < 0.001). Among all patients, 27.2% (196/720) felt hopeless about their medical condition. In the logistic regression model, patients with chronic pain (adjusted OR: 2.29, 95% confidence interval [CI]: 1.21-4.43, P = 0.01) or hopelessness (adjusted OR: 5.69, 95% CI: 2.52-12.64, P < 0.001) had greater odds of screening positive on the ASQ. The interaction effect between pain and hopelessness was not significant in the transformed (B = -0.15, 95% CI: -1.11 to 0.82, P = 0.76) or natural (B = 0.08, 95% CI: -0.07 to 0.23, P = 0.28) scale. CONCLUSIONS: There were significant independent associations between (1) chronic pain and suicide risk and between (2) hopelessness and suicide risk. Future research should examine the temporality and mechanisms underlying these relationships to inform prevention efforts for medically ill adults.

A Comparison of Suicide Attempt Histories of Pediatric and Adult Medical Inpatients and Implications for Screening.

OBJECTIVE: A suicide attempt is the most potent predictor of future suicidal behavior, yet little is known about how to manage and respond to reports of attempt histories in hospitalized medical patients. This study aims to describe the prevalence and characteristics of pediatric and adult medical inpatients who report a past suicide attempt. METHOD: Participants were medical inpatients, aged 10-93 years, enrolled in two suicide risk screening instrument validation studies. Participants completed the Ask Suicide-Screening Questions (ASQ) and the Patient Health Questionnaire (PHQ). RESULTS: A total of 1324 medical inpatients (624 pediatric, 700 adult) completed the ASQ, with 114 participants (8.6%) reporting a past suicide attempt (51 pediatric; 63 adults). Comparing youth to adults, there was no significant difference between attempt rates (χ2=0.29, p = 0.59). Youth with a past attempt were significantly more likely to report past week suicidal ideation (OR = 28.22; 95% CI = 5.90, 135.06) and have a history of mental health care (OR = 9.11; 95% CI = 2.59-32.10), compared to those without a past attempt. Adults with a past attempt were significantly more likely to screen positive for depression, compared to those without attempt histories (OR = 5.00; 95% CI = 2.31-10.83). CONCLUSIONS: Nearly 9% of hospitalized medical patients endorsed a past suicide attempt when screened. Since adolescence is a critical time for detecting suicide risk, screening that includes past suicidal behavior may be an important means to identify youth with recent suicidal thoughts. By assessing recency of suicide attempts in adults, medical settings may optimize the effectiveness of how positive suicide risk screens are managed.HIGHLIGHTSRoughly 9% of medical patients reported a past suicide attempt when screened.Adolescence is a critical time for detecting suicide risk and intervening.Assessing past suicide attempts in adults can help with managing positive screens.

Limitations of Screening for Depression as a Proxy for Suicide Risk in Adult Medical Inpatients.

BACKGROUND: Medically ill hospitalized patients are at elevated risk for suicide. Hospitals that already screen for depression often use depression screening as a proxy for suicide risk screening. Extant research has indicated that screening for depression may not be sufficient to identify all patients at risk for suicide. OBJECTIVE: The present study aims to determine the effectiveness of a depression screening tool, the Patient Health Questionnaire-9, in detecting suicide risk among adult medical inpatients. METHODS: Participants were recruited from inpatient medical/surgical units in 4 hospitals as part of a larger validation study. Participants completed the Patient Health Questionnaire-9 and 2 suicide risk measures: the Ask Suicide-Screening Questions and the Adult Suicidal Ideation Questionnaire. RESULTS: The sample consisted of 727 adult medical inpatients (53.4% men; 61.8% white; mean age 50.1 ± 16.3 years). A total of 116 participants (116 of 727 [16.0%]) screened positive for suicide risk and 175 (175 of 727 [24.1%]) screened positive for depression. Of the 116 patients who screened positive for suicide risk, 36 (31.0%) screened negative for depression on the Patient Health Questionnaire-9. Of 116, 73 (62.9%) individuals who were at risk for suicide did not endorse item 9 (thoughts of harming oneself or of being better off dead) on the Patient Health Questionnaire-9. CONCLUSION: Using depression screening tools as a proxy for suicide risk may be insufficient to detect adult medical inpatients at risk for suicide. Asking directly about suicide risk and using validated tools is necessary to effectively and efficiently screen for suicide risk in this population.

Association between depression and hypertension using classic and revised blood pressure thresholds.

BACKGROUND: In a primary care population, the relationship between treatment of depression and hypertension (HTN) under the recently revised American College of Cardiology and American Heart Association HTN thresholds for diagnosing HTN is unknown. OBJECTIVE: To compare the association between changes in severity of co-occurring depression and HTN over time using the newly revised versus previous HTN guidelines. METHODS: In this retrospective cohort study, outpatients ≥18 years (n = 3018) with clinically significant depressive symptoms and elevated blood pressure at baseline were divided into a 'revised' guideline group (baseline blood pressure ≥130/80 mmHg), a 'classic' guideline group (≥140/90 mmHg) and a 'revised-minus-classic' group (≥130/80 and <140/90 mmHg). Depressive symptom change was assessed using the Patient Health Questionnaire-9 (PHQ-9). Correlations between changes in PHQ-9 scores and HTN levels by group over a 6- to 18-month observation period were assessed using robust regression analysis. RESULTS: There were demographic and clinical differences between groups. A total of 41% of study subjects (1252/3018) had a visit during the follow-up period where additional PHQ-9 and HTN results were available. Depressive symptom change was unrelated to change in blood pressure in the revised and revised-minus-classic groups. The classic HTN group demonstrated a clinically insignificant change in systolic blood pressure for each unit change in PHQ-9 score (ß = 0.23, P-value =0.02). CONCLUSIONS: Although a statistically significant association between reduced HTN levels and improvement in depressive symptoms was demonstrated under classic HTN guidelines, there was no clinically meaningful association between treatment of depression and improved HTN levels under either guideline.

Validation of the Ask Suicide-Screening Questions for Adult Medical Inpatients: A Brief Tool for All Ages.

BACKGROUND: Few brief suicide risk screening instruments are validated for use in both adult and pediatric medical populations. Using the pediatric Ask Suicide-Screening Questions (ASQ) development study as a model, this study aimed to determine whether the ASQ is a valid suicide risk-screening instrument for use among adults medical patients, as well as to evaluate a set of other potential screening questions for use in adults. METHODS: Adult patients hospitalized on inpatient medical/surgical units from 4 hospitals were recruited to participate in a cross-sectional instrument-validation study. The 4-item ASQ and other candidate items were compared against the 25-item, previously validated Adult Suicidal Ideation Questionnaire as the criterion standard. RESULTS: A total of 727 adult medical inpatients completed the screening process. Compared with the Adult Suicidal Ideation Questionnaire, the ASQ performed best among the full set of candidate items, demonstrating strong psychometric properties, with a sensitivity of 100% (95% confidence interval = 90%-100%), a specificity of 89% (95% confidence interval = 86%-91%), and a negative predictive value of 100% (95% confidence interval = 99%-100%). A total of 4.8% (35/727) of the participants screened positive for suicide risk based on the standard criterion Adult Suicidal Ideation Questionnaire. CONCLUSIONS: The ASQ is a valid and brief suicide risk-screening tool for use among adults. Screening medical/surgical inpatients for suicide risk can be performed effectively for both adult and pediatric patients using this brief, primary screener.

Modeling the Cost-Effectiveness of Interventions to Reduce Suicide Risk Among Hospital Emergency Department Patients.

OBJECTIVE: This study estimated the expected cost-effectiveness and population impact of outpatient interventions to reduce suicide risk among patients presenting to general hospital emergency departments (EDs), compared with usual care. Several such interventions have been found efficacious, but none is yet widespread, and the cost-effectiveness of population-based implementation is unknown. METHODS: Modeled cost-effectiveness analysis compared three ED-initiated suicide prevention interventions previously found to be efficacious-follow-up via postcards or caring letters, follow-up via telephone outreach, and suicide-focused cognitive-behavioral therapy (CBT)-with usual care. Primary outcomes were treatment costs, suicides, and life-years saved, evaluated over the year after the index ED visit. RESULTS: Compared with usual care, adding postcards improved outcomes and reduced costs. Adding telephone outreach and suicide-focused CBT, respectively, improved outcomes at a mean incremental cost of $4,300 and $18,800 per life-year saved, respectively. Monte Carlo simulation (1,000 repetitions) revealed the chance of incremental cost-effectiveness to be a certainty for all three interventions, assuming societal willingness to pay ≥$50,000 per life-year. These main findings were robust to various sensitivity analyses, including conservative assumptions about effect size and incremental costs. Population impact was limited by low sensitivity of detecting ED patients' suicide risk, and health care delivery inefficiencies. CONCLUSIONS: The highly favorable cost-effectiveness found for each outpatient intervention provides a strong basis for widespread implementation of any or all of the interventions. The estimated population benefits of doing so would be enhanced by increasing the sensitivity of suicide risk detection among individuals presenting to general hospital EDs.

Temporal Association Between Nonfatal Self-Directed Violence and Tree and Grass Pollen Counts.

OBJECTIVES: Prior research suggests a possible association between pollen and suicide. No studies have examined the relationship between pollen and attempted suicide. This study examines the temporal association between airborne pollen counts and nonfatal suicidal and nonsuicidal self-directed violence (SDV) requiring an emergency department visit. METHODS: Data on daily emergency department visits due to nonfatal SDV as identified by ICD-9 diagnosis criteria were extracted from emergency department medical records of Parkland Memorial Hospital in Dallas, Texas, between January 2000 and December 2003. Concurrent daily airborne tree, grass, and ragweed pollen data from the city of Dallas were extracted from the National Allergy Bureau online database. The data were analyzed using the time series method of generalized autoregressive conditional heteroskedasticity. RESULTS: There were statistically significant and positive temporal associations between tree pollen counts and the number of nonfatal SDV events among women (P = .04) and between grass pollen counts and number of nonfatal SDV events among both men (P = .03) and women (P < .0001). There was no significant temporal association found between ragweed pollen counts and number of nonfatal SDV events. CONCLUSIONS: The study findings suggest that an increase in nonfatal SDV is associated with changes in tree and grass pollen counts. This is the first study that has examined an association between seasonal variation in tree and grass pollen levels and nonfatal SDV event data. The study also used a narrowly defined geographic area and temporal window. The findings suggest that pollen count may be a factor influencing seasonal patterns in suicidal behavior.

Prognostic models to detect and monitor the near-term risk of suicide: state of the science.

Aspirational Goal 3 of the National Action Alliance for Suicide Prevention's Research Prioritization Task Force research agenda is to "find ways to assess who is at risk for attempting suicide in the immediate future." Suicide risk assessment is the practice of detecting patient-level conditions that may rapidly progress toward suicidal acts. With hundreds of thousands of risk assessments occurring every year, this single activity arguably represents the most broadly implemented, sustained suicide prevention activity practiced in the U.S. Given this scope of practice, accurate and reliable risk assessment capabilities hold a central and irreplaceable position among interventions mounted as part of any public health approach to suicide prevention. Development of more reliable methods to detect and measure the likelihood of impending suicidal behaviors, therefore, represents one of the more substantial advancements possible in suicide prevention science today. Although past "second-generation" risk models using largely static risk factors failed to show predictive capabilities, the current "third-generation" dynamic risk prognostic models have shown initial promise. Methodologic improvements to these models include the advent of real-time, in vivo data collection processes, common data elements across studies and data sharing to build knowledge around key factors, and analytic methods designed to address rare event outcomes. Given the critical need for improved risk detection, these promising recent developments may well foreshadow advancement toward eventual achievement of this Aspirational Goal.

Reducing the burden of suicide in the U.S.: the aspirational research goals of the National Action Alliance for Suicide Prevention Research Prioritization Task Force.

BACKGROUND: The National Action Alliance for Suicide Prevention Research Prioritization Task Force (RPTF) has created a prioritized national research agenda with the potential to rapidly and substantially reduce the suicide burden in the U.S. if fully funded and implemented. PURPOSE: Viable, sustainable scientific research agendas addressing challenging public health issues such as suicide often need to incorporate perspectives from multiple stakeholder groups (e.g., researchers, policymakers, and other end-users of new knowledge) during an agenda-setting process. The Stakeholder Survey was a web-based survey conducted and analyzed in 2011-2012 to inform the goal-setting step in the RPTF agenda development process. The survey process, and the final list of "aspirational" research goals it produced, are presented here. METHODS: Using a modified Delphi process, diverse constituent groups generated and evaluated candidate research goals addressing pressing suicide prevention research needs. RESULTS: A total of 716 respondents representing 49 U.S. states and 18 foreign countries provided input that ultimately produced 12 overarching, research-informed aspirational goals aimed at reducing the U.S. suicide burden. Highest-rated goals addressed prevention of subsequent suicidal behavior after an initial attempt, strategies to retain patients in care, improved healthcare provider training, and generating care models that would ensure accessible treatment. CONCLUSIONS: The Stakeholder Survey yielded widely valued research targets. Findings were diverse in focus, type, and current phase of research development but tended to prioritize practical solutions over theoretical advancement. Other complex public health problems requiring input from a broad-based constituency might benefit from web-based tools that facilitate such community input.

A strategic approach for prioritizing research and action to prevent suicide.

It is time to strategically apply science and accountability to the public health problem of preventable suicide. U.S. suicide rates have remained stable for decades. More than 36,000 individuals now die by suicide each year. A public health-based approach to quickly and substantially reduce suicides requires strategic deployment of existing evidence-based interventions, rapid development of new interventions, and measures to increase accountability for results. The purpose of this Open Forum is to galvanize researchers to further develop and consolidate knowledge needed to guide these actions. As researchers overcome data limitations and methodological challenges, they enable better prioritization of high-risk subgroups for targeted suicide prevention efforts, identification of effective interventions ready for deployment, estimation of the implementation impact of effective interventions in real-world settings, and assessment of time horizons for taking implementation to scale. This new knowledge will permit decision makers to take strategic action to reduce suicide and stakeholders to hold them accountable for results.

Differences between veteran suicides with and without psychiatric symptoms.

OBJECTIVES: Our objective was to examine all suicides (n = 423) in 2 geographic areas of the Veterans Health Administration (VHA) over a 7-year period and to perform detailed chart reviews on the subsample that had a VHA visit in the last year of life (n = 381). METHODS: Within this sample, we compared a group with 1 or more documented psychiatric symptoms (68.5%) to a group with no such symptoms (31.5%). The groups were compared on suicidal thoughts and behaviors, somatic symptoms, and stressors using the χ(2) test and on time to death after the last visit using survival analyses. RESULTS: Veterans with documented psychiatric symptoms were more likely to receive a suicide risk assessment, and have suicidal ideation and a suicide plan, sleep problems, pain, and several stressors. These veterans were also more likely to die in the 60 days after their last visit. CONCLUSIONS: Findings indicated presence of 2 large and distinct groups of veterans at risk for suicide in the VHA, underscoring the value of tailored prevention strategies, including approaches suitable for those without identified psychiatric symptoms.

Development and validation of a 6-day standard for the identification of frequent mental distress.

PURPOSE: The goals of the current study were to assess the concurrent validity of a single-item measure of general mental distress with established, multi-item mental health measures used in population-level surveillance and to establish the optimal cutpoint for determining psychological distress (previously identified as frequent mental distress) using recently available data from the Behavioral Risk Factor Surveillance System survey. METHODS: Data for this study were obtained from the core questionnaire and two optional modules available as part of the 2006 and 2007 Behavioral Risk Factor Surveillance System (BRFSS) surveys. Frequent mental distress (FMD) was identified by the number of days of self-reported poor mental health during the last 30 days. Comparisons of the number of days with poor mental health and positive scores for measures of depression and serious mental illness were calculated to identify the most efficient cutpoint for establishing FMD. RESULTS: Comparisons of results obtained from ROC analyses using the PHQ-8 and K6 reported 0.867 (95% CI 0.861-0.872) and 0.840 (95% CI 0.836-0.845) of the area under the curve, respectively, suggesting good accuracy. Using the Youden index, 6 days of poor mental health in the past 30 days, rather than the existing 14-day standard, was identified as the point at which the sum of the sensitivity and specificity was greatest. CONCLUSION: Results from this study suggest that a 6-day standard (FMD-6) can be used as a valid and reliable indicator of generalized mental distress with strong associations to both diagnosable depressive symptomology and serious mental illness.

National suicide rates a century after Durkheim: do we know enough to estimate error?

Durkheim's nineteenth-century analysis of national suicide rates dismissed prior concerns about mortality data fidelity. Over the intervening century, however, evidence documenting various types of error in suicide data has only mounted, and surprising levels of such error continue to be routinely uncovered. Yet the annual suicide rate remains the most widely used population-level suicide metric today. After reviewing the unique sources of bias incurred during stages of suicide data collection and concatenation, we propose a model designed to uniformly estimate error in future studies. A standardized method of error estimation uniformly applied to mortality data could produce data capable of promoting high quality analyses of cross-national research questions.

Effect of 11 September 2001 terrorist attacks in the USA on suicide in areas surrounding the crash sites.

BACKGROUND: The terrorist attacks in the USA on 11 September 2001 affected suicide rates in two European countries, whereas overall US rates remained stable. The effect on attack site rates, however, has not been studied. AIMS: To examine post-attack suicide rates in areas surrounding the three airline crash sites. METHOD: Daily mortality rates were modelled using time series techniques. Where rate change was significant, both duration and geographic scope were analysed. RESULTS: Around the World Trade Center, post-attack 180-day rates dropped significantly (t = 2.4, P = 0.0046), whereas comparison condition rates remained stable. No change was observed for Pentagon or Flight 93 crash sites. CONCLUSIONS: The differential effect by site suggests that proximity may be less important that other event characteristics. Both temporal and geographic aspects of rate fluctuation after sentinel events appear measurable and further analyses may contribute valuable knowledge about how sociological forces affect these rates.

A computerized decision support system for depression in primary care.

OBJECTIVE: In 2004, results from The Texas Medication Algorithm Project (TMAP) showed better clinical outcomes for patients whose physicians adhered to a paper-and-pencil algorithm compared to patients who received standard clinical treatment for major depressive disorder (MDD). However, implementation of and fidelity to the treatment algorithm among various providers was observed to be inadequate. A computerized decision support system (CDSS) for the implementation of the TMAP algorithm for depression has since been developed to improve fidelity and adherence to the algorithm. METHOD: This was a 2-group, parallel design, clinical trial (one patient group receiving MDD treatment from physicians using the CDSS and the other patient group receiving usual care) conducted at 2 separate primary care clinics in Texas from March 2005 through June 2006. Fifty-five patients with MDD (DSM-IV criteria) with no significant difference in disease characteristics were enrolled, 32 of whom were treated by physicians using CDSS and 23 were treated by physicians using usual care. The study's objective was to evaluate the feasibility and efficacy of implementing a CDSS to assist physicians acutely treating patients with MDD compared to usual care in primary care. Primary efficacy outcomes for depression symptom severity were based on the 17-item Hamilton Depression Rating Scale (HDRS(17)) evaluated by an independent rater. RESULTS: Patients treated by physicians employing CDSS had significantly greater symptom reduction, based on the HDRS(17), than patients treated with usual care (P < .001). CONCLUSIONS: The CDSS algorithm, utilizing measurement-based care, was superior to usual care for patients with MDD in primary care settings. Larger randomized controlled trials are needed to confirm these findings. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00551083.