Mapping suicide mortality in Ohio: A spatial epidemiological analysis of suicide clusters and area level correlates.

Previous studies have investigated spatial patterning and associations of area characteristics with suicide rates in Western and Asian countries, but few have been conducted in the United States. This ecological study aims to identify high-risk clusters of suicide in Ohio and assess area level correlates of these clusters. We estimated spatially smoothed standardized mortality ratios (SMR) using Bayesian conditional autoregressive models (CAR) for the period 2004 to 2013. Spatial and spatio-temporal scan statistics were used to detect high-risk clusters of suicide at the census tract level (N=2952). Logistic regression models were used to examine the association between area level correlates and suicide clusters. Nine statistically significant (p<0.05) high-risk spatial clusters and two space-time clusters were identified. We also identified several significant spatial clusters by method of suicide. The risk of suicide was up to 2.1 times higher in high-risk clusters than in areas outside of the clusters (relative risks ranged from 1.22 to 2.14 (p<0.01)). In the multivariate model, factors strongly associated with area suicide rates were socio-economic deprivation and lower provider densities. Efforts to reduce poverty and improve access to health and mental health medical services on the community level represent potentially important suicide prevention strategies.

Quality of care for Medicaid-enrolled youth with bipolar disorders.

This study examined conformance to clinical practice guidelines for children and adolescents with bipolar disorders and identified patient and provider factors associated with guideline concordant care. Administrative records were examined for 4,047 Medicaid covered youth aged 5-18 years with new episodes of bipolar disorder during 2006-2010. Main outcome measures included 5 claims-based quality of care measures reflecting national treatment guidelines. Measures addressed appropriate pharmacotherapy, therapeutic drug monitoring, and psychosocial treatment. The results indicated that current treatment practices for youth diagnosed with bipolar disorder typically fall short of recommended practice guidelines. Although the majority of affected youth are treated with recommended first-line pharmacotherapy, only a minority receive therapeutic drug monitoring and/or psychotherapy of recommended duration, underscoring the need for quality improvement initiatives.

Trends in and Predictors of Long-Term Antipsychotic Polypharmacy Use Among Ohio Medicaid Patients with Schizophrenia, 2008-2014.

OBJECTIVE: The study examined trends and patterns in long-term antipsychotic polypharmacy among Ohio Medicaid patients with schizophrenia and predictors of use. METHODS: A study using a retrospective cohort design and Medicaid claims data was conducted for a cohort of 25,062 adults with a schizophrenic disorder receiving antipsychotic medication between 2008 and 2014. Long-term antipsychotic polypharmacy was defined as simultaneous treatment with two or more antipsychotic medications for ≥90 days. Annual trends in antipsychotic polypharmacy were estimated. Multivariate logistic regression was used to identify patient demographic, clinical, and treatment characteristics associated with antipsychotic polypharmacy. RESULTS: The prevalence of antipsychotic polypharmacy decreased significantly from 29.5% in 2008 (2,715 of 9,211) to 24.9% in 2014 (2,866 of 11,500) (adjusted odds ratio=.98, 99% confidence interval=.97-.99, p<.001). Factors significantly associated with antipsychotic polypharmacy included younger age, male sex, disabled status, rural residence, a schizophrenic disorder other than schizoaffective disorder, a greater number of general medical comorbidities, treatment with more psychotropic medication classes, and more outpatient mental health treatment and emergency department visits. Antipsychotic polypharmacy was significantly less likely for African Americans or those from other racial minority groups compared with whites, for those with substance use disorders compared with others, and for those with a greater number of inpatient psychiatric hospitalizations. CONCLUSIONS: Antipsychotic polypharmacy declined for pharmacologically treated individuals with schizophrenia in Ohio Medicaid between 2008 and 2014, but it remained inordinately prevalent given existing treatment guidelines that recommend antipsychotic monotherapy as the standard of care for patients with schizophrenia.

Service Use in the Month and Year Prior to Suicide Among Adults Enrolled in Ohio Medicaid.

OBJECTIVES: The purpose of this study was to inform suicide prevention efforts by estimating the incidence of suicide among adult Medicaid enrollees and describing clinical profiles and service utilization patterns among decedents. METHODS: Death certificate data for adults (N=1,338) ages 19 to 65 who died by suicide between January 1, 2008, and December 31, 2013, were linked with Ohio Medicaid data. RESULTS: The suicide rate was 18.9 deaths per 100,000 Ohio Medicaid enrollees. Most decedents (83%) made a general medical or mental health visit within one year of suicide, with 50% doing so within 30 days and 27% within one week before death. In the year before suicide, the median number of visits was 16, indicating a subgroup with intensive service utilization. Decedents whose visits were proximal to suicide (within 30 days) rather than distal (31-365 days) were more likely to have individual and co-occurring behavioral and general medical conditions and to be Medicaid eligible through disability. In the year before suicide, most visits (79%) were outpatient general medical visits. Also in the year before suicide, decedents with serious psychiatric disorders were more likely than those without such disorders to make only mental health visits, and those with chronic general medical conditions were more likely than those without such conditions to make only general medical visits. CONCLUSIONS: Medicaid enrollment designates a "virtual boundary" around a subpopulation of health care consumers relevant to national suicide prevention efforts. Findings highlight the potential of using Medicaid data to identify individuals at risk of suicide for screening, prevention, and intervention.

Benzodiazepine use and risk of mortality among patients with schizophrenia: a retrospective longitudinal study.

OBJECTIVE: This study examined the association between benzodiazepine use alone or in combination with antipsychotics and risk of mortality in patients with schizophrenia. METHODS: A retrospective longitudinal analysis was performed using Medicaid claims data merged with death certificate data for 18,953 patients (aged 18-58 years) with ICD-9-diagnosed schizophrenia followed from July 1, 2006, to December 31, 2013. Cox proportional hazard analyses were used to estimate the risk of all-cause mortality associated with benzodiazepine use; adjustment was made for a wide array of fixed and time-varying confounders, including demographics, psychiatric and medical comorbidities, and other psychotropic medications. RESULTS: Of the 18,953 patients diagnosed with schizophrenia, 13,741 (72.5%) were not prescribed a benzodiazepine, 3,476 (18.3%) were prescribed benzodiazepines in the absence of antipsychotic medication, and 1,736 (9.2%) were prescribed benzodiazepines in combination with antipsychotics. Controlling for a wide array of demographic and clinical variables, the hazard of mortality was 208% higher for patients prescribed benzodiazepines without an antipsychotic (HR = 3.08; 95% CI, 2.63-3.61; P < .001) and 48% higher for patients prescribed benzodiazepines in combination with antipsychotics (HR = 1.48; 95% CI, 1.15-1.91; P = .002). Benzodiazepine-prescribed patients were at greater risk of death by suicide and accidental poisoning as well as from natural causes. CONCLUSIONS: Benzodiazepine use is associated with increased mortality risk in patients with schizophrenia after adjusting for a wide range of potential confounders. Given unproven efficacy, physicians should exercise caution in prescribing benzodiazepines to schizophrenic patients.

Factors Associated With Timely Follow-Up Care After Psychiatric Hospitalization for Youths With Mood Disorders.

OBJECTIVES: This study identified patient-, hospital-, and community-level factors associated with timely follow-up care following psychiatric hospitalization for children and adolescents with mood disorders. METHODS: The patients were 7,826 youths (ages six to 17) admitted to psychiatric hospitals with a primary diagnosis of mood disorder (July 2009-November 2010). Outcome variables were defined as one or more mental health visits within seven days and 30 days of psychiatric hospitalization. Predictor variables included patient-, hospital-, and community-level factors obtained from Medicaid claim files from four states (California, Florida, Maryland, and Ohio), the American Hospital Association annual survey, and the Area Resource File. Multilevel modeling was used to assess the association between patient-, hospital-, and community-level factors and receipt of follow-up care. RESULTS: Following discharge, an outpatient mental health visit was obtained by 48.9% of children and adolescents within seven days and by 69.2% of children and adolescents within 30 days. Positive predictors of follow-up at both seven and 30 days included prior outpatient mental health care, foster care, psychiatric comorbidity, care in teaching hospitals and psychiatric hospitals, and residence in counties with more child and adolescent psychiatrists. Negative predictors included older age, black race, care in hospitals with higher levels of Medicaid penetration, and substance use disorders. CONCLUSIONS: One in three youths did not receive mental health follow-up in the 30 days after psychiatric hospitalization. Linkage to follow-up care appears to be complex and multidetermined. Study findings underscored the need for quality improvement interventions targeting vulnerable populations and promoting successful transitions from inpatient to outpatient care.

Widening rural-urban disparities in youth suicides, United States, 1996-2010.

IMPORTANCE: Little is known about recent trends in rural-urban disparities in youth suicide, particularly sex- and method-specific changes. Documenting the extent of these disparities is critical for the development of policies and programs aimed at eliminating geographic disparities. OBJECTIVE: To examine trends in US suicide mortality for adolescents and young adults across the rural-urban continuum. DESIGN, SETTING, AND PARTICIPANTS: Longitudinal trends in suicide rates by rural and urban areas between January 1, 1996, and December 31, 2010, were analyzed using county-level national mortality data linked to a rural-urban continuum measure that classified all 3141 counties in the United States into distinct groups based on population size and adjacency to metropolitan areas. The population included all suicide decedents aged 10 to 24 years. MAIN OUTCOMES AND MEASURES: Rates of suicide per 100,000 persons. RESULTS: Across the study period, 66,595 youths died by suicide, and rural suicide rates were nearly double those of urban areas for both males (19.93 and 10.31 per 100,000, respectively) and females (4.40 and 2.39 per 100,000, respectively). Even after controlling for a wide array of county-level variables, rural-urban suicide differentials increased over time for males, suggesting widening rural-urban disparities (1996-1998: adjusted incidence rate ratio [IRR], 0.98; 2008-2010: adjusted IRR, 1.19; difference in IRR, P = .02). Firearm suicide rates declined, and the rates of hanging/suffocation for both males and females increased. However, the rates of suicide by firearm (males: 1996-1998, 2.05; and 2008-2010: 2.69 times higher) and hanging/suffocation (males: 1996-1998, 1.24; and 2008-2010: 1.63 times higher) were disproportionately higher in rural areas, and rural-urban differences increased over time (P = .002 for males; P = .06 for females). CONCLUSIONS AND RELEVANCE: Suicide rates for adolescents and young adults are higher in rural than in urban communities regardless of the method used, and rural-urban disparities appear to be increasing over time. Further research should carefully explore the mechanisms whereby rural residence might increase suicide risk in youth and consider suicide-prevention efforts specific to rural settings.