Differing correlates for suicide attempts among patients with schizophrenia or schizoaffective disorder in India and USA

Suicide attempts in schizophrenia - A large retrospective cohort study from a tertiary care psychiatry centre in India

The extent of variability in identified risk factors for suicide attempts (SA) in schizophrenia limits their generalization. This study aimed to identify the rates and associated correlates of SA in schizophrenia by reviewing a large cohort (n=500). Nearly one-fourth had a history of SA, which was independently associated with a family history of SA, more inpatient admissions, and better long-term treatment response. These findings highlight the complex interaction between biological factors influencing SA and illness determinants in schizophrenia. Furthermore, they reinforce the need for future research to unravel the association between suicide vulnerability and the pathophysiology of schizophrenia to attenuate morbidity and mortality associated with the same.

Similar and different? A cross-cultural comparison of the prevalence, course of and factors associated with suicidal thoughts and behaviors in first-episode psychosis in Chennai, India and Montreal, Canada

BACKGROUND

Data from high-income countries (HICs) show a high risk of suicidal thoughts and behaviors (STBs) in first-episode psychosis (FEP). It is unknown, however, whether rates and associated factors differ in low- and middle-income countries (LMICs).

AIMS

We therefore aimed to compare the 2-year course of STBs and associated factors in persons with FEP treated in two similarly structured early intervention services in Chennai, India and Montreal, Canada.

METHOD

To ensure fit to the data that included persons without STBs and with varying STBs' severity, a hurdle model was conducted by site, including known predictors of STBs. The 2-year evolution of STBs was compared by site with mixed-effects ordered logistic regression.

RESULTS

The study included 333 FEP patients (168 in Chennai, 165 in Montreal). A significant decrease in STBs was observed at both sites (OR = 0.87; 95% CI [0.84, 0.90]), with the greatest decline in the first 2 months of follow-up. Although three Chennai women died by suicide in the first 4 months (none in Montreal), Chennai patients had a lower risk of STBs over follow-up (OR = 0.44; 95% CI [0.23, 0.81]). Some factors (depression, history of suicide attempts) were consistently associated with STBs across contexts, while others (gender, history of suicidal ideation, relationship status) were associated at only one of the two sites.

CONCLUSIONS

This is the first study to compare STBs in FEP between two distinct geo-sociocultural contexts (an HIC and an LMIC). At both sites, STBs reduced after treatment initiation, suggesting that early intervention reduces STBs across contexts. At both sites, for some patients, STBs persisted or first appeared during follow-up, indicating need for suicide prevention throughout follow-up. Our study demonstrates contextual variations in rates and factors associated with STBs. This has implications for tailoring suicide prevention and makes the case for more research on STBs in FEP in diverse contexts.

A call to action: informing research and practice in suicide prevention among individuals with psychosis

Although it is well established that individuals living with psychosis are at increased risk for suicidal ideation, attempts, and death by suicide, several gaps in the literature need to be addressed to advance research and improve clinical practice. This Call-to-Action highlights three major gaps in our understanding of the intersection of psychosis and suicide as determined by expert consensus. The three gaps include research methods, suicide risk screening and assessment tools used with persons with psychosis, and psychosocial interventions and therapies. Specific action steps to address these gaps are outlined to inform research and practice, and thus, improve care and prognoses among persons with psychosis at risk for suicide.

Prevalence of suicidal ideation and suicide attempts in individuals with psychosis and bipolar disorder in South Asia: systematic review and meta-analysis

BACKGROUND

Suicidal ideation and attempts are growing public health concerns globally. Evidence from high-income countries suggests that individuals with psychosis and bipolar disorder are at increased risk of suicidal ideation and attempts, but there is a scarcity of evidence from South Asia.

AIMS

To estimate the prevalence of suicidal ideation and attempts in individuals with psychosis and bipolar disorder in South Asia.

METHOD

In this systematic review and meta-analysis, four databases (PsycINFO, Web of Science, EMBASE and Medline) were searched until December 2022. Pooled prevalence was estimated with random-effects models. Heterogeneity was quantified with the I2-statistic.

RESULTS

The pooled sample size across the 21 studies was 3745 participants, 1941 (51.8%) of which were male. The pooled prevalence of suicide attempts in South Asian people with either psychosis or bipolar disorder was 22% (95% CI 17-27; n = 15). The pooled prevalence of suicidal ideation with psychosis or bipolar disorder combined was 38% (95% CI 27-51; n = 10). Meta-regression, subgroup and sensitivity analysis showed that the pooled prevalence estimates for both suicide attempt and ideation remained unaffected by variations in critical appraisal ratings and study designs. Only one study reported data on suicide-related deaths.

CONCLUSIONS

One in four individuals diagnosed with psychosis or bipolar disorder have reported suicide attempts, whereas up to one in three have experienced suicidal ideation. These findings underscore the urgent need for clinicians to regularly assess and monitor suicidal ideation and attempts among individuals with these disorders in South Asia.

Do subtle cultural differences sculpt face pareidolia?

Face tuning to non-face images such as shadows or grilled toasts is termed face pareidolia. Face-pareidolia images represent a valuable tool for investigation of social cognition in mental disorders. Here we examined (i) whether, and, if so, how face pareidolia is affected by subtle cultural differences; and (ii) whether this impact is modulated by gender. With this purpose in mind, females and males from Northern Italy were administered a set of Face-n-Thing images, photographs of objects such as houses or waves to a varying degree resembling a face. Participants were presented with pareidolia images with canonical upright orientation and display inversion that heavily affects face pareidolia. In a two-alternative forced-choice paradigm, beholders had to indicate whether each image resembled a face. The outcome was compared with the findings obtained in the Southwest of Germany. With upright orientation, neither cultural background nor gender affected face pareidolia. As expected, display inversion generally mired face pareidolia. Yet, while display inversion led to a drastic reduction of face impression in German males as compared to females, in Italians, no gender differences were found. In a nutshell, subtle cultural differences do not sculpt face pareidolia, but instead affect face impression in a gender-specific way under unusual viewing conditions. Clarification of the origins of these effects requires tailored brain imaging work. Implications for transcultural psychiatry, in particular, for schizophrenia research, are highlighted and discussed.

Means of suicide among adults with schizophrenia across the life span

BACKGROUND AND HYPOTHESES

Adults with schizophrenia have increased risk of suicide with highest risk among younger adults. We investigated whether means of suicide among these adults were different from the general population.

STUDY DESIGN

This retrospective longitudinal analysis used the National Death Index to characterize means of suicide among 4 cohorts of Medicare patients with schizophrenia (2007-2016) by age: 18 to 34, 35 to 44, 45 to 54, and aged 55+ years. Means of suicide were categorized by age at death and sex. Adjusted hazard ratios were calculated for common means. Mortality rates per 100,000 person-years were estimated by age group stratified by sex, and standardized to the general population by age, sex, and race-ethnicity using standardized mortality ratios.

STUDY RESULTS

668,836 adults were included with 2218 suicide decedents: 1444 men and 774 women. The most common means of suicide was poisoning (36.8 %), with a significant sex difference by means: 55.9 % of women died by poisoning, 13.8 % by firearms, 11.0 % by hanging and 9.4 % by jumping, while among men suicide by poisoning (26.6 %), firearms (25.5 %), and hanging (24.2 %) were similar, followed by jumping (12.0 %). Suicide by poisoning among the schizophrenia cohort was 10 times that of the general population, while suicide by firearm was twice that of the general population.

CONCLUSIONS

Means of suicide differed for patients with schizophrenia compared to the general population: poisoning was the most common means among men and women with schizophrenia, while firearms accounted for over half of all suicides in the general U.S.

POPULATION

Thematic analysis of the raters' experiences administering scales to assess depression and suicide in Arab schizophrenia patients

BACKGROUND

This study aimed to enhance the cultural adaptation and training on administering the Arabic versions of the Calgary Depression Scale in Schizophrenia (CDSS) and The International Scale for Suicidal Thinking (ISST) to Arab schizophrenia patients in Doha, Qatar.

METHODS

We applied the qualitative thematic analysis of the focus group discussions with clinical research coordinators (CRCs). Five CRCs met with the principal investigator for two sessions; we transcribed the conversations and analyzed the content.

RESULTS

This study revealed one set of themes related to the scales themselves, like the role of the clinician-patient relationship during administration, the semantic variations in Arabic dialects, and the design of scales to assess suicide and differentiate between negative symptoms and depression. The other set of themes is relevant to the sociocultural domains of Muslim Arabs, covering religion, families' roles, and stigma. It also covered the approaches to culturally sensitive issues like suicide, taboos in Islam, and the gender roles in Arab countries and their impact on the patients' reports of their symptoms.

CONCLUSIONS

Our results highlight several cultural and religious aspects to tackle when approaching schizophrenia patients through in-depth discussions and training to improve the validity of the assessment tools and treatment services.

Research findings on Greek forensic patients found not guilty by reason of insanity. A juxtaposition of patients who committed a criminal offense during their first psychotic episode with those who did so later in the course of their illness

The aim of this study was to compare the baseline characteristics (demographic, psychiatric-psychopathological and legal) among Greek forensic patients found not guilty by reason of insanity. The first step of this approach being differentiating patients who committed a criminal offense during their first psychotic episode from the ones who did so later in the course of their illness. All patients were hospitalized in the Department of Forensic Psychiatry (DFP) of the Psychiatric Hospital of Thessaloniki (PHT) from January 2015 to January 2020 and were examined in order to be included in the study. The final research sample consisted of 78 patients (70 identifying themselves as males and 8 identifying themselves as females) aged 18 and older, 21 of whom committed a criminal offense during their first psychotic episode (FEP, N = 21) and 57 did so later on in the course of their illness (Course, N = 57). Data were collected from multiple sources and several psychometric tools were used (Mini International Neuropsychiatric Interview-M.I.N·I, Positive And Negative Syndrome Scale-PANSS, Addiction Severity Index-ASI, CAGE Questionnaire, Hostility and Direction of Hostility Questionnaire-HDHQ, Global Assessment of Functioning-GAF and Aggression Questionnaire). Comparing the two groups (FEP vs. Course) we found that patients in FEP were younger, had experienced stressful life events in the last 24 months, committed more serious violent crimes, and more frequently attempted suicide after the crime. Their victims were usually members of their family. The main psychometric disparities between the two groups were found in the "Hostility" score of the Aggression questionnaire, and the items "Criticism of Others" and "Paranoid Hostility" of the HDHQ questionnaire, where patients in FEP scored lower. Patients in FEP scored significantly higher in items P1 (delusions), P4 (excitement), P6 (suspiciousness/persecution) and P7 (hostility) of the PANSS scale. No statistically significant differences were found between the two groups regarding their evaluation with the CAGE, ASI or GAF questionnaires. When comparing the patients' present scores in PANSS scale, the patients in FEP had lower total scores in the Positive and the General Psychopathology subscales. Both groups showed significant improvement during hospitalization in all scales (PANSS & GAF), except for the Negative Subscale of the PANSS scale. Through logistic regression analysis, we found that patients in FEP were younger, more likely to have recently experienced stressful life events and more likely to have assaulted a member of their family. Patients with higher scores in the "Hostility" subscale of the Aggression questionnaire were found to remain at risk for committing a crime during the course of their illness. These findings underline the need to design and develop specialized mental health services in order to identify and treat patients involved in violent crime in a timely and effective manner addressing their multiple needs.

Suicide-related behaviours in schizophrenia in China: a comprehensive meta-analysis

AIMS

Suicide-related behaviours are common in schizophrenia and are significantly associated with premature death. The objective of this meta-analysis study was to estimate the pooled prevalence of suicide-related behaviours in schizophrenia patients in China.

METHODS

The relevant literature was searched systematically via the relevant electronic databases (PubMed, Embase, PsycINFO, Chinese National Knowledge Infrastructure, Wanfang Databases and Chinese Biological Medical Literature Database) from their inception until 14 September 2016. Only original studies that reported the prevalence of suicide-related behaviours including suicidal ideation (SI), suicide plan, suicide attempt (SA) and completed suicide were selected.

RESULTS

Nineteen articles met the inclusion criteria and were analysed. The pooled lifetime prevalence of SI and SA were 25.8% (95% CI 14.7-41.1%) and 14.6% (95% CI 9.1-22.8%), respectively. The 1-month prevalence of SI was 22.0% (95% CI 18.2-26.4%). Subgroup analyses of lifetime SI and SA showed that gender, sample size, survey year, study location and source of patients have no significant mediating effects on the results.

CONCLUSIONS

Suicide-related behaviours are common in Chinese schizophrenia patients. Due to the high mortality risk, regular screening and effective suicide prevention programmes are warranted.

Joint analysis of cognitive and circadian variation in Schizophrenia and Bipolar I Disorder

BACKGROUND

Impairment in cognitive variables and alterations in circadian function have been documented among patients with schizophrenia (SZ) and bipolar I disorder (BP1), but it is not known whether joint analysis of these variables can define clinically relevant sub-groups in either disorder.

OBJECTIVES

To evaluate the pattern and relationship of cognitive and circadian function in SZ and BP1 patients with respect to diagnosis and indices of clinical severity.

METHODS

Among patients with SZ and BP1, cognitive function was evaluated using the Penn Computerized Neurocognitive Battery and circadian function was assessed using the Composite Scale of Morningness/ Eveningness (CSM). Clinical severity was estimated using the Global Assessment of Function (GAF) scale, and age at onset of illness (AAO). The patients were compared with community based non-psychotic control individuals and non-psychotic first degree relatives of the SZ patients. The cluster distributions of cognitive function, circadian function and clinical severity were investigated and identified clusters compared across diagnostic groups.

RESULTS

Across participants, the cognitive domains could be separated into two clusters. Cluster 1 included the majority of control individuals and non-psychotic relatives, while SZ patients predominated in Cluster 2. BP1 patients were distributed across both clusters. The clusters could be differentiated by GAF scores, but not AAO. CSM scores were not significantly correlated with individual cognitive domains or with the clusters.

CONCLUSIONS

Clusters based on levels of cognitive function can discriminate SZ patients from control individuals, but not BP1 patients. CSM scores do not contribute to such discrimination.

Prediction of Violence, Suicide Behaviors and Suicide Ideation in a Sample of Institutionalized Offenders With Schizophrenia and Other Psychosis

This study examined the predictive validity of the Spanish version of the Suicide Risk Assessment Manual (S-RAMM) and the Historical-Clinical-Risk Management-20 (HCR-20) in a sample of violent offenders with schizophrenia and other psychosis, who had committed violent crimes and had been sentenced to compulsory psychiatric treatment by the criminal justice system. Patients were prospectively monitored within the institution for 18 months. During the follow-up period, 25% of offenders were involved in any suicidal behavior including acts of self-harm, suicidal ideation and suicide attempts and 34% were physically or verbally violent. The S-RAMM and HCR-20 risk assessment tools were strongly correlated and were able to predict suicidal behavior and violence with a moderate-large effect size (AUCs = 0.81-0.85; AUCs = 0.78-0.80 respectively). Patients scoring above the mean on the S-RAMM (>20-point cut-off) had a five times increased risk of suicide related events (OR = 5.05, 95% CI = 2.6-9.7) and sevenfold risk of violence in the HCR-20 (>21-point cut-off) (OR = 7.13, 95% CI = 2.0-21.2) than those scoring below the mean. Offenders at high risk for suicide and violence had significantly more suicide attempts (p < 0.001) and more prior sentences for violent crimes (p < 0.001). These results support the use of the S-RAMM and HCR-20 for clinical practice by providing evidence of the utility of these measures for predicting risk for suicidal and violent behavior in mentally disordered offenders.

Self-harm and suicide attempts in Schizophrenia

BACKGROUND

The risk of suicide among persons with schizophrenia (SZ) is higher than in general population, with multiple contributory factors. We assessed the prevalence of risk of deliberate self-harm and suicide attempts, along with associated socio-demographic and clinical factors in a group of SZ outpatients (n=61) as part of a larger study on overall schizophrenia-associated risks.

AIMS

To investigate factors associated with risk of deliberate self-harm and suicide among persons with schizophrenia.

METHOD

Out of 270 SZ participants evaluated for various risks using Ram Manohar Lohia Risk Assessment Interview (RML-RAI), 61 reported risk of self-harm including suicide attempt/s. The factors associated with this risk were further evaluated on clinical details and Diagnostic Interview for Genetic Studies.

RESULTS

Risk of reported self-harm was 22.59%. Among them, 10% had attempted suicide at least once. Current age and past month Global Assessment of Functioning score from DIGS (GAF) were significantly correlated with suicide attempt. Attempters had significantly lower current GAF score, indicating poorer functioning. Among 27 attempters, 9 attempted at the onset of illness while 6 others attempted suicide within one year. Most common method of attempt was ingestion of insecticides or overdose of medication, followed by hanging or jumping from height.

CONCLUSION

In our hospital-based sample of suicide attempters, 10% had attempted suicide, among them over 55% within first year of illness. Attempters were significantly older than non-attempters and suffered from significantly more severe illness than non-attempters. Positive symptoms were significantly associated with attempt, irrespective of time at which suicide was attempted.

Lifetime suicide intent, executive function and insight in schizophrenia and schizoaffective disorders

OBJECTIVES

Lack of insight and neurocognitive deficits are often seen in schizophrenia patients. While there are several studies investigating the relationship between suicidal ideation, executive function and insight, there are relatively fewer investigating the triangular relationship between suicide intent, insight and cognitive competence in schizophrenia. The aim of our study was to address this issue.

METHODS

One hundred seventy five subjects with DSM-IV TR diagnoses of schizophrenia or schizoaffective disorder were enrolled and the diagnosis was established using the Hindi version of the Diagnostic Interview for Genetic Studies and other available information in consultation with a Board certified senior Psychiatrist. All the subjects were interviewed on Beck’s cognitive insight scale and tested on the Trail Making Test. All the subjects who had lifetime history of suicide attempt were interviewed on Pierce’s suicide intent scale.

RESULTS

Ever attempters scored significantly higher on Beck’s cognitive insight scale (p = 0.012) and outperformed non-attempters on Trail Making Test A and B (p = 0.026 and p = 0.012 respectively), indicating better executive functions in the former. However among ever attempters, significant relationship was not found between executive functions, insight and severity of suicide intent.

CONCLUSION

Our study suggests that good insight and better executive functioning may be significantly correlated with suicide attempts at some time during the course of illness. Patients with schizophrenia should be evaluated for potential suicidality once denial, neurocognitive deficits and other factors associated with poor insight abate.

Asian Indians in America: The influence of values and culture on mental health

Asian Indians represent a significant portion of the largest growing race of Asians in the past decade in the United States. This selective review examines major cultural themes related to first- and second-generation Asian Indians living in the United States as they impact psychological and psychiatric dysfunction in this population. Specifically, we review the impact of Asian Indian culture on mental health, discuss the impact of acculturation and ethnic identity development on the mental health of Indian-Americans, and focus on typical mental health problems of Asian Indian adolescents, women and elderly in America. Finally, we provide a brief overview of empirically-supported treatment approaches and cultural considerations for additional treatments relevant to this population. This review is intended to provide an important foundation for more systematic empirically-driven investigation into better understanding how Asian Indian cultural themes impact mental health for Indian-Americans, and how to develop effective treatments for these issues in this cultural group.

A critical appraisal of paliperidone long-acting injection in the treatment of schizoaffective disorder

Schizoaffective disorder (SCA) is a chronic and disabling mental illness that presents with mixed symptoms of schizophrenia and affective disorders. SCA is recognized as a discrete disorder, but with greater heterogeneity and symptom overlap, leading to difficulty and delay in diagnosis. Although the overall prognosis is intermediate between schizophrenia and mood disorders, SCA is associated with higher rates of suicide and hospitalization than schizophrenia. No treatment guidelines exist for SCA, and treatment is frequently complex, involving off-label use and polypharmacy (typically combinations of antipsychotics, mood stabilizers, and antidepressants). Oral paliperidone extended-release was the first agent to be approved for the treatment of SCA. As in schizophrenia and bipolar disorder, adherence to oral medications is poor, further contributing to suboptimal outcomes. The use of an antipsychotic in a long-acting injection (LAI) addresses adherence issues, thus potentially reducing relapse. Paliperidone palmitate represents the LAI formulation of paliperidone. In a long-term, double-blind, randomized, controlled trial of adult patients (n=334; intent-to-treat [ITT]) with SCA, paliperidone long-acting injection (PLAI) significantly delayed risk of relapse compared to placebo (hazard ratio 2.49, 95% confidence interval, 1.55–3.99; P<0.001). This study demonstrated the efficacy and safety of PLAI when used as either monotherapy or adjunctive therapy for the maintenance treatment of SCA. The results are consistent with a similarly designed study conducted in patients with schizophrenia, which suggests a benefit in the long-term control of not only psychotic but also affective symptoms. No new safety signals were observed. When used in monotherapy, PLAI simplifies treatment by reducing complex pharmacotherapy and obviating the necessity for daily oral medications. PLAI is the second agent, and the first LAI, to be approved for the treatment of SCA; as an LAI formulation, there is the advantage of improved adherence and simplified treatment in the long-term management of SCA.

Characteristics of attempted suicide by patients with schizophrenia compared with those with mood disorders: a case-controlled study in northern Japan

Recent reports suggest a lifetime suicide risk for schizophrenia patients of approximately 5%. This figure is significantly higher than the general population suicide risk consequently, detection of those at risk is clinically important. This study was undertaken to define the characteristics of suicide attempts by schizophrenia patients compared with attempts by patients with mood disorders. All patients were diagnosed using the ICD-10 criteria. The study population comprised 65 patients with F2 disorders (schizophrenia, schizotypal and delusional disorders), i.e., “the F2 group”, and 94 patients with F3 disorders (mood disorders), i.e., “the F3 group”, who presented in the clinical setting of consultation-liaison psychiatry. The F2 group had a significantly younger mean age and significantly higher ratios of ‘past/present psychiatric treatment’ and ‘more than 3 months interruption of psychiatric treatment’. In contrast, the ratios of ‘physical disorder comorbidity’, ‘alcohol intake at suicide attempt’ and ‘suicide note left behind’ were significantly higher in the F3 group. The F2 group attempted suicide by significantly more serious methods. Furthermore, ‘hallucination-delusion’ was the most prevalent motive in the F2 group and was the only factor that showed a significant association with the seriousness of the method of suicide attempt (OR = 3.36, 95% CI: 1.05–11.33).

Impact of substance use disorder on presentation and short-term course of schizophrenia

The aim of the present study was to compare a cohort of schizophrenia patients with substance use disorder (SUD) with a similar cohort of schizophrenia patients without SUD with regard to sociodemographic variables, clinical variables, psychopathology, anxiety symptoms, depressive symptoms, treatment outcome, and side effect profile of drugs. A total of 143 consecutive inpatients with ICD-10 DCR diagnosis of schizophrenia were included after obtaining informed consent. Patients were evaluated by a semistructured data sheet and Maudsley Addiction Profile. They were then rated by Positive and Negative Symptoms Scale, Calgary Depression Scale, Hamilton Anxiety Rating Scale, and Brief Psychiatric Rating Scale at presentation, three weeks, and six weeks. At three weeks and six weeks, they were also evaluated by UKU Side Effect Rating Scale. Substance abuse was detected in 63.6% schizophrenia patients. Nicotine was the commonest substance followed by cannabis and alcohol. Substance users had longer untreated illness and more depressive symptoms at presentation and six-week follow-up. Dual diagnosis patients had difficulty in abstraction at three and six weeks but not at presentation. Schizophrenia patients with SUD had more depressive symptoms. SUD appeared to mask abstraction difficulties at presentation. Schizophrenia patients with SUD should be carefully assessed for presence of depression.

Dopaminergic gene polymorphisms and cognitive function in a north Indian schizophrenia cohort

BACKGROUND

Associations of polymorphisms from dopaminergic neurotransmitter pathway genes have mostly been reported in Caucasian ancestry schizophrenia (SZ) samples. As studies investigating single SNPs with SZ have been inconsistent, more detailed analyses utilizing multiple SNPs with the diagnostic phenotype as well as cognitive function may be more informative. Therefore, these analyses were conducted in a north Indian sample.

METHODS

Indian SZ case-parent trios (n = 601 families); unscreened controls (n = 468) and an independent set of 118 trio families were analyzed. Representative SNPs in the Dopamine D3 receptor (DRD3), dopamine transporter (SLC6A3), vesicular monoamine transporter 2 (SLC18A2), catechol-o-methyltransferase (COMT) and dopamine beta-hydroxylase (DBH) were genotyped using SNaPshot/SNPlex assays (n = 59 SNPs). The Trail Making Test (TMT) was administered to a subset of the sample (n = 260 cases and n = 302 parents).

RESULTS

Eight SNPs were nominally associated with SZ in either case-control or family based analyses (p < 0.05, rs7631540 and rs2046496 in DRD3; rs363399 and rs10082463 in SLC18A2; rs4680, rs4646315 and rs9332377 in COMT). rs6271 at DBH was associated in both analyses. Haplotypes of DRD3 SNPs incorporating rs7631540-rs2134655-rs3773678-rs324030-rs6280-rs905568 showed suggestive associations in both case-parent and trio samples. At SLC18A2, rs10082463 was nominally associated with psychomotor performance and rs363285 with executive functions using the TMT but did not withstand multiple corrections.

CONCLUSIONS

Suggestive associations with dopaminergic genes were detected in this study, but convincing links between dopaminergic polymorphisms and SZ or cognitive function were not observed.

Suicide attempt and suicidal ideation and their associations with demographic and clinical correlates and quality of life in Chinese schizophrenia patients

OBJECTIVES

This study aimed to examine the prevalence and correlates of lifetime suicide attempts and current suicidal ideation in community-dwelling schizophrenia patients in China.

METHOD

A sample of 540 schizophrenia patients was randomly selected in Beijing, China. All subjects were interviewed using standardized assessment instruments and their basic socio-demographic and clinical data including history of suicide attempts were collected.

RESULTS

The prevalence of lifetime suicide attempts and the point prevalence of suicidal ideation were 12.0%, and 21.1%, respectively. In multiple logistic regression analyses, the presence of lifetime suicide attempt was independently associated with rural residence, having major medical conditions and better social functioning, while higher likelihood of current suicidal ideation was associated with past suicide attempt, the severity of overall psychopathology and depressive symptoms and lower psychological quality of life (QOL).

CONCLUSION

Among Chinese outpatients with schizophrenia, increased current symptoms and poorer QOL were correlated with current suicidal ideation, while demographic factors and indicators of greater social support were mostly correlated with lifetime suicide attempts. This study may help to identify important subgroups of patients with schizophrenia at particularly high risk of suicidal behavior.

[Factors related to suicide attempts in a Tunisian sample of patients with schizophrenia]

INTRODUCTION

The mortality rate in schizophrenia is 4.5 times higher than in the general population. Suicide is one of the main causes of premature death in this affection. Life time prevalence of this behavior ranges from 10 to 15%, which represents a risk 20 to 50 times higher than in the general population. In addition, 40 to 93% of patients who committed suicide had attempted suicide previously. Thus, assessment of correlated variables with suicide attempts is a fundamental issue for developing preventive and therapeutic strategies in suicidal behavior. To the best of our knowledge, no systematic study has yet investigated suicide attempts in an Arabic Muslim population with schizophrenia, although many authors have demonstrated cultural differences in socio-demographic and clinical variables related to suicide attempts within many geographic areas around the world.

OBJECTIVES

The objectives of this study were to assess the frequency and characteristics of lifetime suicide attempts in Tunisian schizophrenic outpatients and to determine the correlated socio-demographic, clinical and therapeutic variables.

METHODS

A total of 134 patients with a DSM-IV diagnosis of schizophrenia who attended the outpatient department of the university psychiatric hospital of Tunis were included. The main demographic and lifetime clinical variables considered were: gender, marital status, family history of psychiatric disorders and suicide attempts, age at time of recruitment, age at onset of illness, duration of untreated psychosis defined as the interval between the onset of the illness and the first antipsychotic treatment, the type and dose of current treatment, dose of antipsychotic drugs converted to chlorpromazine equivalents, extrapyramidal side effects assessed with the Simpson Angus rating scale, number of hospitalizations, comorbid substance abuse, cigarette smoking, severity of psychopathology measured with the Positive And Negative Syndrome Scale (PANSS), and history of at least one suicide attempt. A suicide attempt was defined as a self-destructive act carried out with at least some intent to end one's life. We also assessed the number, the used methods and the causes of suicide attempts. We subdivided the sample into two sub samples according to the presence or absence of suicidal attempts. We analyzed and compared the demographic, clinical and therapeutic variables.

RESULTS

Out of the 134 patients, 45 (32%) had attempted suicide at least once. Half of them (49%) had attempted suicide more than once. The number of suicide attempts varied from one to five with an average of 1.8. The most used methods were medication overdose (n=18, 23.4%), followed by organophosphate poisoning (n=11, 14.3%), defenestration (n=9, 11.7%) and hanging or using sharp objects (n=7, 9.1% for each of them). The main reported reasons of suicide attempts were depressive symptoms (n=46, 60%) including depressed mood and hopelessness, stressful life events (bereavement, divorce, separation) (n=35, 46%) and presence of delusions and/or auditory hallucinations (n=25, 32.5%). No differences were found between the two groups regarding the different socio-demographic variables. Significant differences were found with respect to a duration of untreated psychosis equal to or more than one year (P<0.001), smoking in men (P=0.03), positive symptoms score on the PANSS (P<0.001), scores of Simpson-Angus scale (P=0.029) and poor medication compliance (P=0.02).

CONCLUSION

Demographic variables as suggested by other studies are less valuable predictors of suicide attempts in patients with schizophrenia. Interventions for reducing such behavior should focus on clinical variables and integrate an early diagnosis of the disease, reduce positive psychotic symptoms and tobacco consumption, correct extrapyramidal signs and improve medication compliance.

Suicide prevention is possible: A perception after suicide attempt

BACKGROUND

Suicide is a preventable cause of death, inspite of which its incidence is increasing worldwide. Very few studies are done to know the perception of suicide attempters regarding prevention of their suicide attempt. Such information may be helpful in implementing preventive strategies. This study was done to find out whether those who attempted suicide and recovered perceived that their suicide attempt could have been prevented or not.

MATERIALS AND METHODS

Fifty consecutive subjects were recruited by purposive sampling method. These subjects were admitted for suicide attempt and were stable after medical management. Subjects were assessed using socio-demographic and clinical proforma, Pierce suicide intent scale and structured questionnaire to assess their perception regarding suicide. Group differences for categorical variables were examined with the chi-square test, whereas an independent 't' test was used for continuous variables.

RESULTS

Analysis revealed that 80% of suicide attempters felt that their suicide attempt could have been prevented. 64% of the study subjects perceived that family members and near and dear ones could have helped in preventing their attempt while 16% of the study subjects perceived that society could have helped.

CONCLUSIONS

Majority of subjects on recovery from the suicide attempt perceived that their suicide attempt could have been prevented by family members, near and dear ones and society.

Self-harm in patients with schizophrenia spectrum disorders

This study describes the prevalence, clinical characteristics, and gender profile of self-harm in a cross-sectional sample of 388 patients with schizophrenia spectrum disorders. All patients were interviewed and assessed with respect to lifetime self-harm and relevant clinical variables. An overall of 49% of the patients reported self-harm which was associated with female gender, having had a depressive episode, younger age at psychosis onset, alcohol abuse or dependence, current suicidality, awareness of illness, and low adherence to prescribed medication. Higher awareness of having a mental disorder was associated with self-harm in men only, while emotional dysregulation was associated with self-harm in women only. We conclude that while self-harm in patients with schizophrenia spectrum disorders is highly prevalent in both genders, risk factors in men and women differ in several important ways.

Clinical and genetic correlates of severity in schizophrenia in India: an ordinal logistic regression approach

Genetic association studies of schizophrenia typically utilize diagnostic status as the trait of interest. Among Indian schizophrenia (SZ) participants, we evaluated genetic associations (selected single nucleotide polymorphisms (SNPs) associated with SZ) with selected indices of severity and symptom pattern. Ordinal logistic regression enabled us to analyze variables with multiple categories as outcome variables, while incorporating key demographic variables; this form of analysis may be useful in future genetic association studies. No significant associations were detected following corrections for multiple comparisons.

Suicide and schizophrenia: a systematic review of rates and risk factors

Risk assessment is a core skill in psychiatry. Risk prediction for suicide in schizophrenia is known to be complex. We undertook a systematic review of all original studies concerning suicide in schizophrenia published since 2004. We found 51 data-containing studies (from 1281 studies screened) that met our inclusion criteria, and ranked these by standardized quality criteria. Estimates of rates of suicide and risk factors associated with later suicide were identified, and the risk factors were grouped according to type and strength of association with suicide. Consensus on the lifetime risk of suicide was a rate of approximately 5%. Risk factors with a strong association with later suicide included being young, male, and with a high level of education. Illness-related risk factors were important predictors, with number of prior suicide attempts, depressive symptoms, active hallucinations and delusions, and the presence of insight all having a strong evidential basis. A family history of suicide, and comorbid substance misuse were also positively associated with later suicide. The only consistent protective factor for suicide was delivery of and adherence to effective treatment. Prevention of suicide in schizophrenia will rely on identifying those individuals at risk, and treating comorbid depression and substance misuse, as well as providing best available treatment for psychotic symptoms.

Where have all the women gone?: participant gender in epidemiological and non-epidemiological research of schizophrenia

Though archival literature states that schizophrenia occurs equally in males and in females, recent epidemiological studies report higher incidence of schizophrenia in men than in women. Moreover, there is longstanding evidence that women may be under-represented in non-epidemiological research literature. Our first goal was to quantify gender ratios in non-epidemiological research published in 2006. Secondly, we sought to investigate which factors contribute to high numbers of men in research studies. Our final goal was to compare gender ratios in non-epidemiological schizophrenia research to reported incidence rates. In a recent meta-analysis of incidence, there were 1.4 males for each female with schizophrenia. In non-epidemiological studies of the schizophrenia patients, there was an average of 1.94 men for every woman. Although the degree to which men outnumbered women varied according to study type and region of study, research studies included more men than women across all investigated variables. Either the incidence rates are higher for men than has previously been reported or women are less visible in research settings than in the greater community. Importantly, the discrepancy between gender ratios in epidemiological and non-epidemiological research is consistent. However, specific, identifiable factors are present when male participants are greatest, suggesting that many research environments yield a higher number of men. Thus much of our understanding of the illness and its treatment is based on research conducted disproportionately with men.

Where have all the women gone?: participant gender in epidemiological and non-epidemiological research of schizophrenia

Though archival literature states that schizophrenia occurs equally in males and in females, recent epidemiological studies report higher incidence of schizophrenia in men than in women. Moreover, there is longstanding evidence that women may be under-represented in non-epidemiological research literature. Our first goal was to quantify gender ratios in non-epidemiological research published in 2006. Secondly, we sought to investigate which factors contribute to high numbers of men in research studies. Our final goal was to compare gender ratios in non-epidemiological schizophrenia research to reported incidence rates. In a recent meta-analysis of incidence, there were 1.4 males for each female with schizophrenia. In non-epidemiological studies of the schizophrenia patients, there was an average of 1.94 men for every woman. Although the degree to which men outnumbered women varied according to study type and region of study, research studies included more men than women across all investigated variables. Either the incidence rates are higher for men than has previously been reported or women are less visible in research settings than in the greater community. Importantly, the discrepancy between gender ratios in epidemiological and non-epidemiological research is consistent. However, specific, identifiable factors are present when male participants are greatest, suggesting that many research environments yield a higher number of men. Thus much of our understanding of the illness and its treatment is based on research conducted disproportionately with men.

Profile of risk factors associated with suicide attempts: A study from Orissa, India

CONTEXT

Periodic systematic profiling of suicidal risk factors in developing countries is an established need.

AIMS

It was intended to study the risk factors associated with suicide attempts in Orissa, one of the most economically compromised states of India.

SETTINGS AND DESIGN

Cross-sectional study in a general hospital.

MATERIALS AND METHODS

Consecutive 149 suicide attempters were evaluated for psychosocial, situational, and clinical risk factors using the Risk Rescue Rating scale, Suicide Prevention Center scale, Lethality of Suicide Rating scale, and Presumptive Stressful Life Event scale. They were compared with healthy and psychiatric controls who had never attempted suicide.

STATISTICAL ANALYSIS

Chi-square for comparison of categorical variables, t-tests for comparison of means.

RESULTS

The male-to-female ratio was closer to one in adults and around 1:3 in adolescents. Younger age, lower-middle economic group, rural background, unemployed, school educated were more represented in this study. Compared to the controls, significantly more number of attempters had a family history of psychiatric illness and suicide, childhood trauma, medical consultation within one month, had experienced stressful life events and had expressed suicidal ideas. In a considerable proportion of attempts, risk was high and rescuability least; 59.1% had more than 50% chance of death. Suicide potential was high in almost half the cases. More than 80% of all attempters had psychiatric disorder; however, only 31.5% had had treatment. Factors like middle age, family history of psychiatric disorders, past psychiatric history, current psychiatric illness, communication of suicidal ideas, the use of physical methods, and high potential attempts, differentiated repeaters significantly from the first-timers. Major physical illness, family and marital conflicts, financial problems, and failure in examinations were more frequent life events. Childhood trauma, noted in around 40% of the attempters, was considerably associated with adolescent suicide attempts.

CONCLUSIONS

Modifiable risk factors identified in this study have preventive implications.

Suicide attempts of schizophrenia patients: a case-controlled study in tertiary care

BACKGROUND

Schizophrenia is one of the disorders in which suicide attempts and death by suicide are pronounced. However, there is paucity of data regarding suicide attempts by schizophrenia patients. The aim of the present study was to characterize a large sample of schizophrenia patients in tertiary care who had attempted suicide.

METHOD

Over a 15-year period all computerized records of admissions of adult schizophrenia patients were examined. Patients who had attempted suicide were defined as the index group and the comparison group was comprised of the next admission of a patient suffering from schizophrenia who did not attempt suicide prior to hospitalization.

RESULTS

There were 10,006 admissions of patients suffering from schizophrenia during the study period. Of these, 1094 (10.9%) records comprise the index group (patients who had attempted suicide), 380 women and 714 men, mean age for the group 39.6+/-12.9 years. The comparison group of patients matched for diagnosis (N=1094), consisted of 302 women and 792 men, mean age for this group was 42.9+/-13.7 years. Four variables significantly differentiated between groups. Patients who had attempted suicide were younger (39.6 vs. 42.9 years; p=0.00), higher percentage of females (34.7% vs. 27.6%; p=0.00), with increased rates of co-morbid physical illness (27.5% vs. 20.4%; p=0.00) notably cardiovascular and diabetes and with a higher rate of alcohol and drug abuse (32.1% vs. 12.4%; p=0.00).

CONCLUSIONS

The present study emphasizes several significant factors associated with attempted suicide amongst schizophrenia patients notably physical co-morbidity and abuse of alcohol and drugs. These need be integrated into existing risk assessment schemes thus aiding in decreasing adverse outcomes in this vulnerable group of patients.

Bipolar pharmacotherapy and suicidal behavior Part 3: impact of antipsychotics

INTRODUCTION

Antipsychotics, particularly second generation agents, are widely used in bipolar disorder, but their effect on suicidal behavior in this population has not been systematically studied.

METHODS

Retrospective chart review of 405 veterans with bipolar disorder followed for a mean of three years, with month-by-month systematic assessment of current pharmacotherapy and suicide completion, attempt or hospitalization for suicidality. Comparison of rates of suicidal events during mood stabilizer monotherapy, antipsychotic monotherapy, and combination of mood stabilizer and antipsychotic.

RESULTS

Non-lethal suicide event rates were 9.4 times greater (chi2=28.29, p<.0001) during antipsychotic monotherapy and 3.5 times greater during mood stabilizer+antipsychotic (chi2=15.13, p=0.0001) than during mood stabilizer monotherapy.

LIMITATIONS

Antipsychotics may have been prescribed because patients were at greater risk of suicidal behavior. First and second generation antipsychotics were not distinguished.

CONCLUSIONS

Treatment of bipolar patients with antipsychotics is associated with an increase in non-lethal suicidal behavior. Thus, use of antipsychotics for bipolar patients requires careful monitoring for suicidal behavior. Further studies are urgently needed to better characterize this relationship.