Axis-I disorders and vulnerability to psychosis

Cannabis use influences disorganized symptoms severity but not transition in a cohort of non-help-seeking individuals at-risk for psychosis from São Paulo, Brazil

BACKGROUND

Cannabis use is associated with an increased risk of developing a psychotic disorder. However, in individuals with at-risk mental states for psychosis (ARMS) this association is not clear, as well as the impact of cannabis use on symptom severity. The objective of this study was to evaluate the association of cannabis use patterns and ARMS risk status, transition to psychotic and psychiatric disorders, and psychopathology.

METHOD

A sample of 109 ARMS and 197 control individuals was drawn from the general population. Lifetime, maximum and current amount of cannabis use were assessed with the South Westminster modified questionnaire. Participants were followed-up for a mean of 2.5 years and reassessed for transition to any psychiatric disorder.

RESULTS

There were no differences between ARMS and controls regarding lifetime use, current amount of use, or maximum amount of cannabis use. There were also no differences between those who transitioned to a psychiatric disorder and those who did not regarding cannabis use variables. In ARMS individuals, cannabis use was significantly related to disorganization symptoms.

CONCLUSION

The results of this study suggest that cannabis plays a role in the psychopathology of ARMS individuals, leading to more severe symptomatology.

Psychosocial factors associated with the risk of developing psychosis in a Mexican general population sample

Epidemiological evidence has linked an array of sociodemographic and psychosocial factors with an increased risk of developing psychosis. However, research in samples from low- and middle-income countries is still scarce. This study used a Mexican sample to explore (i) sociodemographic and psychosocial differences between individuals with and without a positive screen for Clinical High-Risk for psychosis (CHR), and (ii) sociodemographic and psychosocial factors associated with screening positive for CHR. The sample consisted of 822 individuals from the general population who completed an online survey. Of the participants, 17.3% (n = 142) met the CHR screening criteria. Comparisons between those who screened positive (CHR-positive group) and those who did not (Non-CHR group) showed that participants in the CHR-positive group were younger, had a lower educational level, and reported more mental health problems than the Non-CHR group. Furthermore, relative to the Non-CHR group, the CHR-positive group had a greater prevalence of medium/high risk associated with cannabis use, a higher prevalence of adverse experiences (bullying, intimate partner violence, and experiencing a violent or unexpected death of a relative or friend), as well as higher levels of childhood maltreatment, poorer family functioning, and more distress associated with the COVID-19 pandemic. Groups did not differ in sex, marital/relationship status, occupation, and socio-economic status. Finally, when examined in multivariate analyses, the variables associated with screening positive for CHR were: having an unhealthy family functioning (OR = 2.75, 95%CI 1.69-4.46), a higher risk associated with cannabis use (OR = 2.75, 95%CI 1.63-4.64), a lower level of education (OR = 1.55, 95%CI 1.003-2.54), having experienced a major natural disaster (OR = 1.94, 95%CI 1.18-3.16), having experienced a violent or unexpected death of a relative or friend (OR = 1.85, 95%CI 1.22-2.81), higher levels of childhood emotional abuse (OR = 1.88, 95%CI 1.09-3.25), physical neglect (OR = 1.68, 95%CI 1.08-2.61), and physical abuse (OR = 1.66, 95%CI 1.05-2.61), and higher COVID-related distress (OR = 1.10, 95%CI 1.01-1.20). An older age was a protective factor for screening positive for CHR (OR = 0.96, 95%CI 0.92-0.99). Overall, the findings highlight the importance of examining potential psychosocial contributors to psychosis vulnerability across different sociocultural contexts to delineate risk and protective processes relevant to specific populations and better target preventive intervention efforts.

Substance-induced psychosis as a risk factor for unipolar depression or anxiety disorders-A nationwide register-based prospective cohort study

BACKGROUND

Substance-induced psychosis has previously been linked to increased incidence of schizophrenia and bipolar disorder. We aimed to investigate if substance-induced psychosis is associated with increased risk of depression or anxiety.

METHODS

We conducted a nationwide prospective register-based cohort study from 1994 to 2017, including all individuals with substance-induced psychosis, and age-and-sex matched controls without substance-induced psychosis. We investigated time to either depression or anxiety, as well as time to depression and time to anxiety, in stratified Cox regression models.

RESULTS

We included 5,557 individuals with substance-induced psychosis and 55,562 controls. Substance-induced psychosis was associated with increased risk of either depression or anxiety (HR=7.05, 95% CI 6.71-7.41), depression (HR=5.40, 95% CI 4.77-6.11), or anxiety (HR=7.05, 95% CI 5.99-8.31). Analyses of individual types of substance-induced psychosis revealed similar hazard ratios across substances. Associations between substance-induced psychosis and depression or anxiety were stronger in people without preceding alcohol or substance use disorders. While strongest shortly after incident substance-induced psychosis, the increased incidence of depression and anxiety remained more than double over the full period of follow-up.

LIMITATIONS

Only psychiatric disorders treated either in psychiatric inpatient or outpatient units, supplemented with information on psychiatric medication, was available. Exact times of onset were similarly unknown, and only dates of first treatment were available.

CONCLUSIONS

Substance-induced psychosis is a strong predictor of later onset of depression or anxiety. Regardless of whether this association is causal, this highlights the need for increased monitoring and possibly improved treatment of patients with substance-induced psychosis.

Frequency of Self-reported Psychotic Symptoms among 2542 Outpatients at Their First Visit for Mental Health Services

Objective: Psychotic symptoms are prevalent in both clinical settings and the general population. The distribution of psychotic symptoms across patients with different types of psychotic and non-psychotic mental disorders is helpful for understanding symptom specificity. This study aimed to explore the distribution differences of psychotic symptoms in an outpatient population in terms of frequency, age, gender, and psychotic and non-psychotic disorders.Methods: Outpatients were recruited consecutively at their first visit to the Shanghai Mental Health Center. Psychotic symptoms over the preceding year were self-reported through the PRIME Screen-Revised (PS-R) questionnaire. Seven categories of psychotic symptoms were grouped: perplexity and delusional mood (Item-1,5); first rank symptoms (Item-3,6,11); overvalued beliefs (Item-2,4); suspiciousness/persecutory ideas (Item-7), grandiose ideas (Item 8), perceptual abnormalities (Item-9,10), and disorganized communication (Item-12). Comparisons were made with respect to age group, sex, and diagnostic category.Results: Of 2542 outpatients, 1448(57.0%) were screened as positive, which was defined as having two or more symptoms with at least "somewhat agree" scores, ranging from 0 to 6. The threshold of one or more "yes" items was an endorsement to categorize the participant as positive for psychotic symptoms. The frequency of psychotic symptoms declined with age. Younger patients tended to report more psychotic symptoms than older patients(p < .001). Suspiciousness(p = .038) and disorganized communication (p = .004) were more common in females than males. Age, first rank symptoms, suspiciousness/persecutory ideas, grandiose ideas, and perceptual abnormalities were found to significantly differ between psychotic and non-psychotic disorders.Conclusions: Psychotic symptoms appear to be common in the clinical population and represent nonspecific indicators of psychopathology. The difference between psychotic and non-psychotic psychopathologies is more a function of the presence, frequency, and severity of psychotic symptoms.

Expanding the search for emerging mental ill health to safeguard student potential and vocational success in high school: A narrative review

AIM

Young people experiencing mental ill health are more likely than their healthy aged peers to drop out of high school. This can result in social exclusion and vocational derailment. Identifying young people at risk and taking action before an illness is established or school dropout occurs is an important goal. This study aimed to examine evidence for the risk markers and at risk mental states of the clinical staging model (stage 0-1b) and whether these risk states and early symptoms impact school participation and academic attainment.

METHOD

This narrative review assembles research from both the psychiatry and education literature. It examines stage 0 to stage 1b of the clinical staging model and links the risk states and early symptoms to evidence about the academic success of young people in high school.

RESULTS

In accordance with the clinical staging model and evidence from education literature, childhood trauma and parental mental illness can impact school engagement and academic progress. Sleep disturbance can result in academic failure. Undifferentiated depression and anxiety can increase the risk for school dropout. Subthreshold psychosis and hypomanic states are associated with functional impairment and high rates of Not in Employment, Education, or Training (NEET) but are not recognized in the education literature.

CONCLUSION

Risk markers for emerging mental ill health can be identified in education research and demonstrate an impact on a student's success in high school. Clear referral protocols need to be embedded into school life to reduce risk of progression to later stages of illness and support school participation and success.

Deconstructing the relationships between self-esteem and paranoia in early psychosis: an experience sampling study

Background

No studies have examined the association between self‐esteem and paranoia developmentally across the critical stages of psychosis emergence. The present study fills this gap and extends previous research by examining how different dimensions, measures, and types of self‐esteem relate to daily‐life paranoia across at‐risk mental states for psychosis (ARMS) and first episode of psychosis (FEP) stages. Furthermore, the moderation effects of momentary anxiety and momentary perceived social support on the association between momentary self‐esteem and paranoia were examined.

Design

This study used a multilevel, cross‐sectional design.

Methods

One‐hundred and thirteen participants (74 ARMS and 39 FEP) were assessed repeatedly over seven consecutive days on levels of momentary paranoia, self‐esteem, anxiety and perceived social support using experience sampling methodology. Measures of trait and implicit self‐esteem were also collected.

Results

Global momentary and trait self‐esteem, and their positive and negative dimensions, were related to daily‐life paranoia in both ARMS and FEP groups. Conversely, implicit self‐esteem was not associated with daily‐life paranoia in either group. Anxiety negatively moderated the association between positive self‐esteem and lower paranoia, whereas both feeling close to others and feeling cared for by others strengthened this association. However, only feeling cared for by others moderated the association between negative self‐esteem and higher paranoia.

Conclusions

Different types, measures and dimensions of self‐esteem are differentially related to paranoia in early psychosis and are influenced by contextual factors in daily‐life. This yields a more complex picture of these associations and offers insights that might aid psychological interventions.

Practitioner points

Different measures (trait and momentary) and dimensions (positive and negative) of explicit self‐esteem are distinctly related to paranoia across risk and first‐episode stages of psychosis.

Explicit, but not implicit, self‐esteem is associated with real‐life paranoia in incipient psychosis.

Anxiety boosted the association of poor self‐esteem and paranoia ideation in daily‐life.

Social closeness, but feeling cared for by others in particular, interacts with self‐esteem tempering the expression of paranoia in real life.

Early detection of psychosis – Establishing a service for persons at risk

Purpose

The establishment phase of an early detection centre for prodromal psychosis is introduced and characterised, along with its detaining and promoting factors within a universal multi-payer health care system.

Method

Across the first six years (1998–2003), users' characteristics are compared between different diagnostic groups and to the local population statistics; and, for an exemplary 12-months period (3-1-2002 to 2-28-2003), the characteristics of telephone contacts with the service are studied.

Results

Rising steadily in number across the first three years, 872 persons, predominately of German citizenship and higher education, consulted the service until 2003, 326 with first-episode psychosis and 144 not fulfilling criteria for a current or beginning psychosis. Of the 402 putatively prodromal patients, 94% reported predictive basic symptoms, 68.9% attenuated and 20.6% transient psychotic symptoms. Most contacts by persons meeting any prodromal criterion were initiated by mental health professionals (psychiatrists or psychologists) and counselling services.

Conclusion

Supported by public awareness campaigns, an early detection service is well received by its users and private practitioners as reflected by the large proportion of referrals from the latter. However, persons of non-German background as well as of lower education were underrepresented indicating that these sub-groups should be approached by tailored programmes.

Screening nursing students to identify those at high risk of poor mental health: a cross-sectional survey

OBJECTIVES

This study aimed to identify those at high risk of poor mental health among nursing students and to examine the relationships and consistency among five mental health assessments.

DESIGN

A cross-sectional design with purposive sampling was used. Four mental health screening tools plus previous mental health history/information were conducted during June 2015 to October 2016.

SETTING

A nursing major university in Taiwan.

PARTICIPANTS

A total of 2779 participants aged between 19 and 45 years were recruited.

MAIN OUTCOME MEASURES

Five mental health risks were identified: increased risk for ultra-high risk, putative prepsychosis states, high trait anxiety, high state anxiety with genetic risk and depression.

RESULTS

Out of the 3395 collected questionnaire, 2779 (82%) were found valid and included in the study. 612 (22%) of the participants were identified to be at mental health risk. 12 of them appeared positive in four, 79 in three, 148 in two and 373 in one of the adopted mental health screening tools. 69 participants had the experience of seeking medical help due to mental health issues, and 58% of them were identified to be at risk of mental health during the screening. Trait and state anxiety scored the highest in correlation analysis (r(2620)=0.76, p<0.001). Correlations were observed in the scores on the subscales of Chinese Version of Schizotypal Personality Questionnaire-Brief (CSPQ-B) and those of Brief self-report Questionnaire for Screening Putative Prepsychotic States (BQSPS), and the highest correlation coefficients was (r(2740)=0.70, p<0.001). Although both of the screening tools are used to assess mental illness risk at its prodromal phase, but CSPQ-B in general appeared to have more rigorous screening criteria than BQSPS.

CONCLUSION

For expediting early identification high risk of poor mental health, easy-to-use screening questionnaires can be adopted to assess the mental health state of nursing students whose mental well-being and overall health are of vital importance to the entire healthcare industry.

Interpersonal sensitivity and persistent attenuated psychotic symptoms in adolescence

Interpersonal sensitivity defines feelings of inner-fragility in the presence of others due to the expectation of criticism or rejection. Interpersonal sensitivity was found to be related to attenuated positive psychotic symptom during the prodromal phase of psychosis. The aims of this study were to examine if high level of interpersonal sensitivity at baseline are associated with the persistence of attenuated positive psychotic symptoms and general psychopathology at 18-month follow-up. A sample of 85 help-seeking individuals (mean age = 16.6, SD = 5.05) referred an Italian early detection project, completed the interpersonal sensitivity measure and the structured interview for prodromal symptoms (SIPS) at baseline and were assessed at 18-month follow-up using the SIPS. Results showed that individuals with high level of interpersonal sensitivity at baseline reported high level of attenuated positive psychotic symptoms (i.e., unusual thought content) and general symptoms (i.e., depression, irritability and low tolerance to daily stress) at follow-up. This study suggests that being "hypersensitive" to interpersonal interactions is a psychological feature associated with attenuated positive psychotic symptoms and general symptoms, such as depression and irritability, at 18-month follow-up. Assessing and treating inner-self fragilities may be an important step of early detection program to avoid the persistence of subtle but very distressing long-terms symptoms.

Lack of Diagnostic Pluripotentiality in Patients at Clinical High Risk for Psychosis: Specificity of Comorbidity Persistence and Search for Pluripotential Subgroups

More than 20 years after the clinical high risk syndrome for psychosis (CHR) was first articulated, it remains controversial whether the CHR syndrome predicts onset of psychosis with diagnostic specificity or predicts pluripotential diagnostic outcomes. Recently, analyses of observational studies, however, have suggested that the CHR syndrome is not pluripotential for emergent diagnostic outcomes. The present report conducted additional analyses in previously reported samples to determine (1) whether comorbid disorders were more likely to persist in CHR patients compared to a comparison group of patients who responded to CHR recruitment efforts but did not meet criteria, termed help-seeking comparison subjects (HSC); and (2) whether clinically defined pluripotential CHR subgroups could be identified. All data were derived from 2 multisite studies in which DSM-IV structured diagnostic interviews were conducted at baseline and at 6-month intervals. Across samples we observed persistence of any nonpsychotic disorder in 80/147 CHR cases (54.4%) and in 48/84 HSC cases (57.1%, n.s.). Findings with persistence of anxiety, depressive, and bipolar disorders considered separately were similar. Efforts to discover pluripotential CHR subgroups were unsuccessful. These findings add additional support to the view that the CHR syndrome is not pluripotential for predicting various diagnostic outcomes but rather is specific for predicting emergent psychosis.

Anxiety in youth at clinical high risk for psychosis

AIM

High rates of anxiety have been observed in youth at clinical high risk (CHR) of developing psychosis. In CHR, anxiety often co-occurs with depression, and there is inconsistent evidence on anxiety in relation to transition to psychosis. The aim of this study was to examine: (i) the prevalence of anxiety disorders in individuals at CHR; (ii) clinical differences between those with and without anxiety; and (iii) the association of baseline anxiety with later transition to psychosis.

METHODS

The sample consisted of 765 CHR individuals and 280 healthy controls. CHR status was determined with the Structured Interview of Prodromal Syndromes, mood and anxiety diagnoses with the Structured Clinical Interview for DSM-IV Disorders, and severity of anxiety with the Social Interaction Anxiety Scale and Self-Rating Anxiety Scale.

RESULTS

In the CHR sample, 51% met criteria for an anxiety disorder. CHR participants had significantly more anxiety diagnoses and severity than healthy controls. Anxiety was correlated to attenuated psychotic and negative symptoms in CHR and those with an anxiety disorder demonstrated more suspiciousness. CHR participants with obsessive-compulsive disorder (OCD) exhibited more severe symptomatology than those without OCD. An initial presentation of anxiety did not differ between those who did or did not transition to psychosis.

CONCLUSIONS

In this large sample of individuals at CHR, anxiety is common and associated with more severe attenuated psychotic symptoms. Treatment not only to prevent or delay transition to psychosis but also to address presenting concerns, such as anxiety, is warranted.

Adolescents at clinical-high risk for psychosis: Circadian rhythm disturbances predict worsened prognosis at 1-year follow-up

BACKGROUND

Individuals with psychotic disorders experience disruptions to both the sleep and circadian components of the sleep/wake cycle. Recent evidence has supported a role of sleep disturbances in emerging psychosis. However, less is known about how circadian rhythm disruptions may relate to psychosis symptoms and prognosis for adolescents with clinical high-risk (CHR) syndromes. The present study examines circadian rest/activity rhythms in CHR and healthy control (HC) youth to clarify the relationships among circadian rhythm disturbance, psychosis symptoms, psychosocial functioning, and the longitudinal course of illness.

METHODS

Thirty-four CHR and 32 HC participants were administered a baseline evaluation, which included clinical interviews, 5days of actigraphy, and a sleep/activity diary. CHR (n=29) participants were re-administered clinical interviews at a 1-year follow-up assessment.

RESULTS

Relative to HC, CHR youth exhibited more fragmented circadian rhythms and later onset of nocturnal rest. Circadian disturbances (fragmented rhythms, low daily activity) were associated with increased psychotic symptom severity among CHR participants at baseline. Circadian disruptions (lower daily activity, rhythms that were more fragmented and/or desynchronized with the light/dark cycle) also predicted severity of psychosis symptoms and psychosocial impairment at 1-year follow-up among CHR youth.

CONCLUSIONS

Circadian rhythm disturbances may represent a potential vulnerability marker for emergence of psychosis, and thus, rest/activity rhythm stabilization has promise to inform early-identification and prevention/intervention strategies for CHR youth. Future studies with longer study designs are necessary to further examine circadian rhythms in the prodromal period and rates of conversion to psychosis among CHR teens.

Cannabis use and symptom severity in individuals at ultra high risk for psychosis: a meta-analysis

OBJECTIVE

We aimed to assess whether individuals at ultra high risk (UHR) for psychosis have higher rates of cannabis use and cannabis use disorders (CUDs) than non-UHR individuals and determine whether UHR cannabis users have more severe psychotic experiences than non-users.

METHOD

We conducted a meta-analysis of studies reporting cannabis use in the UHR group and/or positive or negative symptoms among UHR cannabis users and non-users. Logit event rates were calculated for cannabis use, in addition to odds ratios to assess the difference between UHR and controls. Severity of clinical symptoms in UHR cannabis users and non-users was compared using Hedges' g.

RESULTS

Thirty unique studies were included (UHR n = 4205, controls n = 667) containing data from cross-sectional and longitudinal studies, and randomised control trials. UHR individuals have high rates of current (26.7%) and lifetime (52.8%) cannabis use, and CUDs (12.8%). Lifetime use and CUDs were significantly higher than controls (lifetime OR: 2.09; CUD OR: 5.49). UHR cannabis users had higher rates of unusual thought content and suspiciousness than non-users.

CONCLUSION

Ultra high risk individuals have high rates of cannabis use and CUDs, and cannabis users had more severe positive symptoms. Targeting substance use during the UHR phase may have significant benefits to an individual's long-term outcome.

Serious delinquency and later schizophrenia: A nationwide register-based follow-up study of Finnish pretrial 15- to 19-year-old offenders sent for a forensic psychiatric examination

BACKGROUND

Aggressive and disruptive behaviors often precede the onset of schizophrenia. In this register-based follow-up study with a case-control design, we wanted to investigate if serious delinquency was associated with future diagnoses of schizophrenia or schizoaffective disorder (here, broadly defined schizophrenia) among a nationwide consecutive sample of 15- to 19-year-old Finnish delinquents sent for a forensic psychiatric examination in 1989-2010.

METHODS

The sample comprised 313 delinquents with no past or current psychotic disorder. For each delinquent, four age-, gender- and place of birth -matched controls were randomly selected from the Central Population Register. Five controls (0.4%) had been treated for schizophrenia before their respective index-dates and were thus excluded from further analysis, leaving us with a control population of 1247 individuals. The subjects were followed till death, emigration or the end of 2015, whichever occurred first. Diagnoses were obtained from the Care Register for Health Care.

RESULTS

Forty (12.8%) of the delinquents and 11 (0.9%) of the controls were diagnosed with schizophrenia later in life (HR 16.6, 95% CI 8.53-32.39, P<0.001). Almost half of the pretrial adolescents with later schizophrenia were diagnosed within 5years of the forensic psychiatric examination, but latency was longer among the other half of the sample, reaching up to 20.5years.

CONCLUSIONS

The study supports the previous research indicating a potential link between serious delinquency and later schizophrenia. Accurate psychiatric assessments should be made in correctional services but also later in life so that any possible psychotic symptoms can be detected in individuals with a history of serious delinquency even if there were no signs of psychosis before or at the time of the crime. Future research should explore which factors influence the delinquent's risk of developing later schizophrenia.

Substance use in youth at risk for psychosis

BACKGROUND

People with schizophrenia have high rates of substance use which contributes to co-morbidity and premature mortality. Some evidence suggests people at-risk for psychosis have high rates of substance use. We aimed to assess substance use in a help-seeking cohort, comparing those at-risk and not at-risk for psychosis, and to establish any relationship with clinical symptoms.

METHOD

Participants were help-seeking youth presenting to mental health services in Sydney and Melbourne. 279 (34.8%) were at-risk for psychosis, and 452 (56.4%) did not meet criteria for a psychotic disorder or risk for psychosis. The excluded individuals were made up of 59 (7.4%) young people who met criteria for a psychotic disorder and 11 (1.4%) who were unable to be evaluated. We assessed the association of substance use involvement with risk status and clinical symptoms using multivariate regression.

RESULTS

Individuals at-risk for psychosis had significantly higher tobacco, alcohol and cannabis use than those not at-risk. Multivariate analysis revealed at-risk status was significantly associated with higher alcohol involvement scores when adjusting for age and gender, but no association was found for cannabis or tobacco. At-risk status was no longer associated with alcohol involvement when cannabis or tobacco use was added into the analysis.

CONCLUSION

Tobacco smoking, alcohol consumption and cannabis use are common in help-seeking youth, particularly those at-risk for psychosis. It is important to consider co-occurring use of different substances in adolescents. Early substance misuse in this phase of illness could be targeted to improve physical and mental health in young people.

Deconstructing Vulnerability for Psychosis: Meta-Analysis of Environmental Risk Factors for Psychosis in Subjects at Ultra High-Risk

Background

Subjects at ultra high-risk (UHR) for psychosis have an enhanced vulnerability to develop the disorder but the risk factors accounting for this accrued risk are undetermined.

Method

Systematic review of associations between genetic or environmental risk factors for psychosis that are widely established in the literature and UHR state, based on comparisons to controls.

Results

Forty-four studies encompassing 170 independent datasets and 54 risk factors were included. There were no studies on association between genetic or epigenetic risk factors and the UHR state that met the inclusion criteria. UHR subjects were more likely to show obstetric complications, tobacco use, physical inactivity, childhood trauma/emotional abuse/physical neglect, high perceived stress, childhood and adolescent low functioning, affective comorbidities, male gender, single status, unemployment and low educational level as compared to controls.

Conclusions

The increased vulnerability of UHR subjects can be related to environmental risk factors like childhood trauma, adverse life events and affective dysfunction. The role of genetic and epigenetic risk factors awaits clarification.

Persistence or recurrence of non-psychotic comorbid mental disorders associated with 6-year poor functional outcomes in patients at ultra high risk for psychosis

BACKGROUND

Patients at ultra-high risk for psychosis (UHR) are a highly heterogeneous group in terms of clinical and functional outcomes. Several non-psychotic mental disorders co-occur together with the UHR state. Little is known about the impact of non-psychotic comorbid mental disorders on clinical and functional outcomes of UHR patients.

METHODS

The sample included 154 UHR help-seeking patients (identified with the CAARMS, comprehensive assessment of the at-risk mental state), evaluated at baseline on the Ham-D, Ham-A (Hamilton depression/anxiety rating scale), and PANSS (positive and negative syndrome scale). 74 patients completed the 6-year follow-up assessment (mean=6.19, SD=1.87). Comorbid disorders at follow-up were assessed with the SCID I and II. Global functioning was rated on the global assessment of functioning (GAF) scale.

RESULTS

In the present sample, 6-year risk of psychosis transition was 28.4%. Among non-transitioned UHR patients, 28.3% reported attenuated psychotic symptoms (APS) and 45.3% remained functionally impaired at follow-up (GAF<60). 56.8% patients were affected by at least one comorbid disorder at follow-up. Among UHR patients who presented with some comorbid disorder at baseline, 61.5% had persistent or recurrent course. Incident comorbid disorders emerged in 45.4% of baseline UHR patients. The persistence or recurrence of non-psychotic comorbid mental disorders was associated with poorer global functional outcomes at follow-up.

LIMITATIONS

A substantial proportion of the initial sample was not available for follow-up interviews and some groups in the analyses had small sample size. Predictors of longitudinal outcomes were not explored.

CONCLUSIONS

Among UHR patients, persistence or recurrence of non-psychotic comorbid mental disorders, mostly affective disorders, is associated with 6-year poor functional outcomes.

Community-oriented family-based intervention superior to standard treatment in improving depression, hopelessness and functioning among adolescents with any psychosis-risk symptoms

The aim of the present study was to compare change in functioning, affective symptoms and level of psychosis-risk symptoms in symptomatic adolescents who were treated either in an early intervention programme based on a need-adapted Family- and Community-orientated integrative Treatment Model (FCTM) or in standard adolescent psychiatric treatment (Treatment As Usual, TAU). 28 pairs were matched by length of follow-up, gender, age, and baseline functioning. At one year after the start of treatment, the matched groups were compared on change in functioning (GAF-M), five psychosis-risk dimensions of the Structured Interview for Psychosis-Risk Syndromes (SIPS), and self-reported anxiety, depression, and hopelessness symptoms (BAI, BDI-II, BHS). FCTM was more effective in improving functioning (20% vs. 6% improvement on GAF-M), as well as self-reported depression (53% vs. 14% improvement on BDI-II) and hopelessness (41% vs. 3% improvement on BHS). However, for psychosis-risk symptoms and anxiety symptoms, effectiveness differences between treatment models did not reach statistical significance. To conclude, in the present study, we found greater improvement in functioning and self-reported depression and hopelessness among adolescents who received a need-adapted Family- and Community-orientated integrative Treatment than among those who were treated in standard adolescent psychiatry.

Cardiometabolic risk factors in young people at ultra-high risk for psychosis: A systematic review and meta-analysis

BACKGROUND

The physical health of people with schizophrenia is poor, and associated with increased morbidity and mortality. Unhealthy lifestyles and side-effects of antipsychotic medication contribute to cardiometabolic dysfunction. Yet it is unclear when this unhealthy profile starts. We aimed to see if people at ultra-high risk for psychosis (UHR) have increased rates of cardiometabolic risk factors.

METHOD

An electronic search of MEDLINE, PsycINFO, Embase and the Cochrane Central Register of Controlled Trials was conducted on 1st May 2015 using terms associated with the ultra-high risk state and health. Eligible studies were peer-reviewed English language research articles with populations that met at-risk diagnostic criteria and reported cardiometabolic risk factors. A meta-analysis was conducted on smoking data, the cardiometabolic risk factor that yielded the most studies.

RESULTS

Forty-seven eligible studies were identified. UHR samples had low levels of physical activity, and high rates of smoking and alcohol abuse compared with controls. No differences were found for body mass index. An overall pooled rate of smoking for UHR participants was 33% (95% CI=0.24-0.42) and significantly more UHR individuals smoked compared with controls with a pooled odds ratio of 2.3 (P<0.05; 95% CI=-1.48-3.48).

CONCLUSIONS

UHR samples display cardiometabolic risk factors which are largely modifiable. The UHR phase is an important opportunity for early intervention services to improve physical health.

Depression predicts persistence of paranoia in clinical high-risk patients to psychosis: results of the EPOS project

BACKGROUND

The link between depression and paranoia has long been discussed in psychiatric literature. Because the causality of this association is difficult to study in patients with full-blown psychosis, we aimed to investigate how clinical depression relates to the presence and occurrence of paranoid symptoms in clinical high-risk (CHR) patients.

METHODS

In all, 245 young help-seeking CHR patients were assessed for suspiciousness and paranoid symptoms with the structured interview for prodromal syndromes at baseline, 9- and 18-month follow-up. At baseline, clinical diagnoses were assessed by the Structured Clinical Interview for DSM-IV, childhood adversities by the Trauma and Distress Scale, trait-like suspiciousness by the Schizotypal Personality Questionnaire, and anxiety and depressiveness by the Positive and Negative Syndrome Scale.

RESULTS

At baseline, 54.3% of CHR patients reported at least moderate paranoid symptoms. At 9- and 18-month follow-ups, the corresponding figures were 28.3 and 24.4%. Depressive, obsessive-compulsive and somatoform disorders, emotional and sexual abuse, and anxiety and suspiciousness associated with paranoid symptoms. In multivariate modelling, depressive and obsessive-compulsive disorders, sexual abuse, and anxiety predicted persistence of paranoid symptoms.

CONCLUSION

Depressive disorder was one of the major clinical factors predicting persistence of paranoid symptoms in CHR patients. In addition, obsessive-compulsive disorder, childhood sexual abuse, and anxiety associated with paranoia. Effective pharmacological and psychotherapeutic treatment of these disorders and anxiety may reduce paranoid symptoms in CHR patients.

Lower functioning predicts identification of psychosis risk screening status in help-seeking adolescents

AIM

There is some previous evidence suggesting that the risk state for psychosis is associated with decreased functioning ability, health-related quality of life (QoL), anxiety and depression. The aim of this study is to identify which factors predict psychosis risk screening status.

METHODS

The data were collected in Helsinki University Central Hospital, Finland, by an early intervention team. One hundred eighty-one help-seeking adolescents (mean age 15.3 years) completed questionnaires of QoL (16D), alcohol consumption (Alcohol Use Disorders Identification Test), anxiety (Beck Anxiety Inventory), hopelessness (BBeck Hopelessness Scale) and depression (Beck Depression Inventory II). Functioning ability was assessed by the Global Assessment of Functioning, whereas the PROD-screen was used to interview and assess risk symptoms for psychosis.

RESULTS

In a logistic regression analysis, a lower functioning ability explained independently (P = 0.006) psychosis risk screening status after age, gender, alcohol consumption, QoL, anxiety, hopelessness and depression symptoms were adjusted.

CONCLUSIONS

The present results suggest that lower functioning ability is associated independently with psychosis risk screening status. Hence, therapeutic input for those at risk should focus upon improving functioning.

Specificity of Incident Diagnostic Outcomes in Patients at Clinical High Risk for Psychosis

It is not well established whether the incident outcomes of the clinical high-risk (CHR) syndrome for psychosis are diagnostically specific for psychosis or whether CHR patients also are at elevated risk for a variety of nonpsychotic disorders. We collected 2 samples (NAPLS-1, PREDICT) that contained CHR patients and a control group who responded to CHR recruitment efforts but did not meet CHR criteria on interview (help-seeking comparison patients [HSC]). Incident diagnostic outcomes were defined as the occurrence of a SIPS-defined psychosis or a structured interview diagnosis from 1 of 3 nonpsychotic Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) groups (anxiety, bipolar, or nonbipolar mood disorder), when no diagnosis in that group was present at baseline. Logistic regression revealed that the CHR vs HSC effect did not vary significantly across study for any emergent diagnostic outcome; data from the 2 studies were therefore combined. CHR (n = 271) vs HSC (n = 171) emergent outcomes were: psychosis 19.6% vs 1.8%, bipolar disorders 1.1% vs 1.2%, nonbipolar mood disorders 4.4% vs 5.3%, and anxiety disorders 5.2% vs 5.3%. The main effect of CHR vs HSC was statistically significant (OR = 13.8, 95% CI 4.2-45.0, df = 1, P < .001) for emergent psychosis but not for any emergent nonpsychotic disorder. Sensitivity analyses confirmed these findings. Within the CHR group emergent psychosis was significantly more likely than each nonpsychotic DSM-IV emergent disorder, and within the HSC group emergent psychosis was significantly less likely than most emergent nonpsychotic disorders. The CHR syndrome is specific as a marker for research on predictors and mechanisms of developing psychosis.

Actigraphic-measured sleep disturbance predicts increased positive symptoms in adolescents at ultra high-risk for psychosis: A longitudinal study

BACKGROUND

Sleep disturbance is prevalent among patients with psychosis, yet little is known about sleep health during the ultra high-risk (UHR) period. This study used actigraphy to evaluate sleep in healthy control (HC) and UHR adolescents to examine the relationship between sleep disturbance and psychosis symptoms at baseline and 12-month follow-up, as well as comparisons between objective and subjective measurements of sleep functioning in UHR youth.

METHOD

Thirty-six UHR and 31 HC youth participated in a baseline evaluation including 5 nights of actigraphy, subjective measurement of sleep health (Pittsburgh Sleep Quality Index; PSQI), and clinical interviews. Clinical measures were repeated with UHR youth (N=23) at a 12-month follow-up.

RESULTS

The actigraphy data indicated that UHR youth displayed increased wake time after onset (WASO), increased movements during sleep, and decreased efficiency compared to HC, and several markers of sleep disturbance including decreased efficiency, increased WASO, number of awakenings, and increased movements were associated with symptomatology in the UHR group. Interestingly, there were associations between actigraph and self-report indices of sleep duration and efficiency (at the trend level) but not awakenings. Several objective measures of sleep disturbance and one self-reported measure (disrupted continuity) predicted the longitudinal course of symptoms over 12 months in the UHR group.

CONCLUSIONS

Taken together, the results suggest a potential role for sleep problems in the etiology of schizophrenia, and highlight sleep health as a possible target for prevention/intervention efforts. Additionally, actigraphy represents an inexpensive, sensitive measurement providing unique information not captured by self-report, and may be an informative adjunct to UHR assessments.

Impact of psychiatric comorbidity in individuals at Ultra High Risk of psychosis - Findings from the Longitudinal Youth at Risk Study (LYRIKS)

Recent studies have reported a high prevalence of psychiatric comorbidities in Ultra High Risk (UHR) for psychosis populations. This study examined the prevalence of comorbidity and its impact on symptoms, functioning, cognition and transition to psychosis in the Longitudinal Youth at Risk Study (LYRIKS) sample. The Comprehensive Assessment of At-Risk Mental State (CAARMS) was used to identify UHR individuals and 163 participants were included in the study. Comorbid disorders were identified using the Structured Clinical Interview for DSM-IV-TR Axis I Disorders. Participants were evaluated on the CAARMS, Positive and Negative Syndrome Scale, Calgary Depression Scale for Schizophrenia, Beck Anxiety Inventory, Global Assessment of Functioning and Brief Assessment of Cognition in Schizophrenia. Clinical, functioning and cognitive characteristics by lifetime and current comorbidity groups were compared using multivariate tests. Independent predictors of comorbidity were identified through logistic regression. Chi-squared tests were used to compare comorbidity rates between those who had developed psychosis at one year and those who had not. We found that 131 UHR participants (80.4%) had a lifetime comorbidity while 82 (50.3%) had a current comorbidity with depressive disorders being the most common. UHR individuals with comorbidity had more severe symptoms, higher distress and lower functioning with no differences in general cognition. Lower functioning was associated with current comorbidity. Eleven participants (6.7%) had developed psychosis after one year and there were no differences in the comorbidity rates between those who developed psychosis and those who did not. Psychiatric comorbidities in the UHR group are associated with adverse clinical outcomes and warrant closer attention.

Psychopathology and affect dysregulation across the continuum of psychosis: a multiple comparison group study

AIM

There is evidence that psychotic-like phenomena can be detected within the general population and that psychotic experiences lie on a continuum that also spans affective states. We aimed to investigate comparisons of a first-episode psychosis group, an 'at-risk mental state group' and a help-seeking control group with non-patients to explore whether affective states lie on a continuum of psychosis.

METHOD

Measures of psychotic-like experiences, social anxiety and depression were administered to 20 patients experiencing first-episode psychosis (FEP), 113 patients experiencing an 'at-risk' mental state (ARMS), 28 patients who were help-seeking but not experiencing a FEP or ARMS (HSC) and 30 non-clinical participants (NC).

RESULTS

For distress in relation to psychotic-like experiences, the FEP, ARMS and HSC groups scored significantly higher than the NC group for the perceptual abnormalities and non-bizarre ideas. In terms of severity of psychotic experiences, the FEP scored the highest, followed by the ARMS group, followed by the HSC and NC groups. The clinical groups scored significantly higher for depression than the non-clinical group. Interestingly, only the FEP and the ARMS groups scored significantly higher than non-patients for social anxiety.

CONCLUSIONS

These findings suggest that a psychosis continuum exists; however, this does not suggest that both psychosis and affective symptoms lie on the same continuum, rather it would appear the presence of such affective states that may affect help-seeking behaviour and clinical status. The implications of these findings for clinical practice are discussed.

Response initiation in young adults at risk for psychosis in the Northern Finland 1986 Birth Cohort

INTRODUCTION

This is one of the very few studies to investigate the specific executive function/processing speed component of response initiation in subjects at familial risk (FR) for psychosis, and the first such study in subjects at clinical risk (CR) for psychosis.

METHODS

Participants (N = 177) were members of the general population-based Northern Finland 1986 Birth Cohort in the following four groups: FR for psychosis (n = 62), CR for psychosis (n = 21), psychosis (n = 25) and control subjects (n = 69). The response initiation of these groups was compared in three different tests: Semantic fluency, Stockings of Cambridge and Spatial working memory.

RESULTS

The two risk groups did not differ significantly from control group, but differed from, and outperformed the psychosis group in semantic fluency response initiation.

CONCLUSIONS

Response initiation deficits were not evident in a non-help seeking psychosis high-risk sample.

Anxiety symptoms in adolescents at risk for psychosis: a comparison among help seekers

BACKGROUND

Several studies have reported on how anxiety disorders and anxiety symptoms are already present before the onset of psychosis. However, anxiety disorders are typically studied in these studies at diagnosis-level. The aim of present study was to investigate the profile of anxiety symptoms in subjects at risk of developing psychosis and to compare the anxiety profile with those who are not at risk.

METHOD

Data were collected at Helsinki University Central Hospital (HUCH) by an early detection and intervention team. Of 185 help-seeking respondents, between 12 and 18 years of age, 59 adolescents were classified as being at risk of psychosis and 126 as not being at risk via an interview conducted by a validated at-risk assessment tool (PROD). Anxiety was measured using the Beck Anxiety Inventory (BAI).

RESULTS

The anxiety total sum score was higher in the at-risk group for psychosis (mean 8.33 vs. 13.34, p = .000). Both subfactors of the anxiety scale, cognitive anxiety (p = .000) and somatic anxiety (p = .000), differed significantly by risk status. After using the Bonferroni correction for multiple analysis, items of relax (p = .000), nervous (p = .002), losing control (p = .000) and faint (p = .002) had statistically significant higher mean scores in the group at risk of psychosis. In logistic regression analysis, being female (p = .015) and the subfactor relating to cognitive anxiety (p = .044) significantly explained the at-risk status for psychosis.

CONCLUSIONS

Adolescents at risk for psychosis have a higher level of anxiety compared with other help-seeking adolescents. These results should be considered in clinical practice.

The distribution of self-reported psychotic-like experiences in non-psychotic help-seeking mental health patients in the general population; a factor mixture analysis

PURPOSE

Factor mixture analysis (FMA) and item response mixture models in the general population have shown that the psychosis phenotype has four classes. This study attempted to replicate this finding in help-seeking people accessing mental health services for symptoms of non-psychotic mental disorders.

METHODS

All patients (18-35 years old) referred for non-psychotic mental health problems to the secondary mental healthcare service in The Hague between February 2008 to February 2010 (N = 3,694), were included. Patients completed the Prodromal Questionnaire (PQ). Hybrid latent class analysis was applied to explore the number, size and symptom profiles of the classes.

RESULTS

The FMA resulted in four classes. Class 1 (N = 1,039, 28.1%) scored high on conceptual disorganization, inattention and mood disorder. Patients in Class 2 (N = 619, 16.8%) endorsed almost all PQ-items, were more often screened as being psychotic or at high risk of developing psychosis, without care takers noticing. In Class 3 (N = 1,747, 47.3%) perplexity, paranoia and negative symptoms were more prevalent. Patients were more often at high risk of developing psychosis. Class 4 (N = 286, 7.7%) represented the 'normative' group with low probabilities for all items.

DISCUSSION

The results support the hypothesis that a representation in four classes of psychotic-like experiences can also be applied in a help-seeking population.

Reduced parahippocampal cortical thickness in subjects at ultra-high risk for psychosis

BACKGROUND

Grey matter volume and cortical thickness represent two complementary aspects of brain structure. Several studies have described reductions in grey matter volume in people at ultra-high risk (UHR) of psychosis; however, little is known about cortical thickness in this group. The aim of the present study was to investigate cortical thickness alterations in UHR subjects and compare individuals who subsequently did and did not develop psychosis.

METHOD

We examined magnetic resonance imaging data collected at four different scanning sites. The UHR subjects were followed up for at least 2 years. Subsequent to scanning, 50 UHR subjects developed psychosis and 117 did not. Cortical thickness was examined in regions previously identified as sites of neuroanatomical alterations in UHR subjects, using voxel-based cortical thickness.

RESULTS

At baseline UHR subjects, compared with controls, showed reduced cortical thickness in the right parahippocampal gyrus (p < 0.05, familywise error corrected). There were no significant differences in cortical thickness between the UHR subjects who later developed psychosis and those who did not.

CONCLUSIONS

These data suggest that UHR symptomatology is characterized by alterations in the thickness of the medial temporal cortex. We did not find evidence that the later progression to psychosis was linked to additional alterations in cortical thickness, although we cannot exclude the possibility that the study lacked sufficient power to detect such differences.

Changes in depression, anxiety and hopelessness symptoms during family- and community-oriented intervention for help-seeking adolescents and adolescents at risk of psychosis

BACKGROUND

Little is known about how symptoms are changed in adolescents who receive treatment in an early detection and intervention service.

AIMS

The aims of the present research were to study change in depression, anxiety and hopelessness symptoms in a sample of help-seeking adolescents who participated in a community- and family-oriented early intervention programme.

METHODS

The data was collected in Helsinki University Central Hospital (HUCH), Finland, by the JERI (Jorvi Early psychosis Recognition and Intervention) early intervention team; 85 help-seeking adolescents filled questionnaires of anxiety (Beck Anxiety Inventory), depression (Beck Depression Inventory II) and hopelessness (Beck Hopelessness Scale). The PROD screen was used to assess risk of psychosis.

RESULTS

Paired samples t-test of anxiety, depression and hopelessness showed statistically significant improvement on all scales (P < 0.001) in all participants (n = 85) between baseline and the end of intervention. Improvement was significant on scales of anxiety (P = 0.004), depression (P < 0.001) and hopelessness (P < 0.001) for participants at risk of psychosis (n = 34). Effect sizes were from medium to large for changes. After the treatment, of all participants, 68.8% were at a remission level of symptoms in anxiety, 84.7% in symptoms of depression and 88.2% in symptoms of hopelessness. Of sub-group of participants at risk of psychosis, 58.8% were at a remission level of symptoms in anxiety, 76.4% in symptoms of depression and 79.4% in symptoms of hopelessness.

CONCLUSIONS

Present results suggest that there is both statistically and clinically remarkable improvement in anxiety, depression and hopelessness symptoms after the intervention. These findings should be considered in the psychiatric care of help-seeking adolescents and adolescents at risk of psychosis.

Characteristics, symptomatology and naturalistic treatment in individuals at-risk for bipolar disorders: baseline results in the first 180 help-seeking individuals assessed at the Dresden high-risk project

BACKGROUND

Considering results from the early recognition and intervention in psychosis, identification and treatment of individuals with at-risk states for the development of bipolar disorders (BD) could improve the course and severity of illness and prevent long-term consequences. Different approaches to define risk factors and groups have recently been published, data on treatment options are still missing.

METHODS

Help-seeking persons at the early recognition center in Dresden, Germany, were assessed with a standardized diagnostic procedure including following risk factors for BD: familial risk, increasing mood swings, subsyndromal (hypo)manic symptoms, specific sleep and circadian rhythm disturbances, anxiety/fearfulness, affective disorder, decreased psychosocial functioning, increasing periodic substance use, and attention-deficit/hyperactivity disorder. Based on symptomatology and current and/or life-time psychiatric diagnosis, subjects with an at-risk state were offered individual treatment options.

RESULTS

Out of 180 referred and screened persons, 29 (16%) met criteria for at-risk state for BD. Altogether, 27 (93%) at-risk individuals fulfilled criteria for a current and/or life-time mental illness other than BD; 14 (48%) had received pharmacological and/or psychotherapeutic treatment in the past. Treatments recommended included psychoeducation (100%), psychotherapy alone (62%), pharmacotherapy alone (17%), and psychotherapy+pharmacotherapy (14%).

CONCLUSIONS

To identify at-risk states for BD, a multifactorial approach including all known risk markers should be used. As most at-risk patients meet criteria for other mental disorders, the short- and long-term impact of different treatment strategies on symptomatic, functional and diagnostic outcomes requires detailed investigation.

LIMITATIONS

Small sample size of at-risk individuals, lack of sufficient prospective data and control groups.

Sleep dysfunction and thalamic abnormalities in adolescents at ultra high-risk for psychosis

BACKGROUND

Sleep dysfunction is a pervasive, distressing characteristic of psychosis, yet little is known regarding sleep quality prior to illness onset. At present, it is unclear whether sleep dysfunction precedes the emergence of psychotic symptoms, signifying a core feature of the disorder, or if it represents a consequence of prolonged contact with aspects of schizophrenia and its treatment (e.g., medication use or neurotoxicity) or co-morbid symptoms (e.g., depressive and manic symptomatology). The current study examined sleep dysfunction in adolescents at ultra high-risk (UHR) for psychosis, relationships between sleep disturbances and psychosis symptoms, volume of an integral sleep-structure (thalamus), and associations between thalamic abnormalities and sleep impairment in UHR youth.

METHOD

Thirty-three UHR youth and 33 healthy controls (HC) participated in a self-assessment of sleep functioning (Pittsburgh Sleep Quality Index; PSQI), self and parent-report clinical interviews, and structural magnetic resonance imaging (MRI).

RESULTS

UHR adolescents displayed increased latency to sleep onset and greater sleep disturbances/disrupted continuity compared to HC youth, over and above concurrent mood symptoms. Among UHR youth, increased sleep dysfunction was associated with greater negative symptom severity but not positive symptoms. Compared to HC adolescents, UHR participants displayed decreased bilateral thalamus volume, which was associated with increased sleep dysfunction.

CONCLUSIONS

Sleep dysfunction occurs during the pre-psychotic period, and may play a role in the etiology and pathophysiology of psychosis. In addition, the relationship of disrupted sleep to psychosis symptoms in UHR youth indicates that prevention and intervention strategies may be improved by targeting sleep stabilization in the pre-psychotic period.

Adolescents at risk of psychosis have higher level of hopelessness than adolescents not at risk of psychosis

BACKGROUND

Hopelessness has been a widely studied phenomenon in psychotic disorders. However, previous evidence of hopelessness in at-risk state of psychosis is lacking. The primary aim of the present study was to investigate associations between at-risk state of psychosis and the level of hopelessness, the secondary aim being to investigate, at item-level, hopelessness differences in hopelessness profile of adolescents at risk of psychosis.

METHODS

Hopelessness was assessed with the Beck Hopelessness Scale (BHS) and risk of psychosis with the PROD screen by an early detection team at the Helsinki University Central Hospital in a sample of 200 help-seeking adolescents between 11 and 22 years of age. Of them, 66 were classified as belonging to the at-risk of psychosis group and 134 to the not-at-risk of psychosis group.

RESULTS

The at-risk group scored higher in total sum scores of hopelessness than the not-at-risk group (9.15 vs. 6.63, P = 0.002). In an additional analysis of the BHS, the sub-item "I have great faith in the future" (P < 0.001) differed by risk status of psychosis after correction for multiple analysis. In a logistic regression analysis, BHS subfactor III (sum scores of items "I can't imagine what my life would be like in 10 years" and "I don't expect to get what I really want") explained (P = 0.047) the at-risk status of psychosis after age, gender and other BHS subfactors had been adjusted for.

CONCLUSIONS

Adolescents at risk of psychosis have higher hopelessness than other help-seekers. In light of a heightened possibility of suicidal behaviour, psychiatric care should pay attention to these findings.

Reduced P300 amplitude during retrieval on a spatial working memory task in a community sample of adolescents who report psychotic symptoms

BACKGROUND

Deficits in working memory are widely reported in schizophrenia and are considered a trait marker for the disorder. Event-related potentials (ERPs) and imaging data suggest that these differences in working memory performance may be due to aberrant functioning in the prefrontal and parietal cortices. Research suggests that many of the same risk factors for schizophrenia are shared with individuals from the general population who report psychotic symptoms.

METHODS

Forty-two participants (age range 11-13 years) were divided into those who reported psychotic symptoms (N = 17) and those who reported no psychotic symptoms, i.e. the control group (N = 25). Behavioural differences in accuracy and reaction time were explored between the groups as well as electrophysiological correlates of working memory using a Spatial Working Memory Task, which was a variant of the Sternberg paradigm. Specifically, differences in the P300 component were explored across load level (low load and high load), location (positive probe i.e. in the same location as shown in the study stimulus and negative probe i.e. in a different location to the study stimulus) and between groups for the overall P300 timeframe. The effect of load was also explored at early and late timeframes of the P300 component (250-430 ms and 430-750 ms respectively).

RESULTS

No between-group differences in the behavioural data were observed. Reduced amplitude of the P300 component was observed in the psychotic symptoms group relative to the control group at posterior electrode sites. Amplitude of the P300 component was reduced at high load for the late P300 timeframe at electrode sites Pz and POz.

CONCLUSIONS

These results identify neural correlates of neurocognitive dysfunction associated with population level psychotic symptoms and provide insights into ERP abnormalities associated with the extended psychosis phenotype.

Prevalence of attenuated psychotic symptoms and their relationship with DSM-IV diagnoses in a general psychiatric outpatient clinic

OBJECTIVE

Attenuated psychosis syndrome (APS) is being proposed for inclusion in Section III of DSM-5 for those impaired by subthreshold psychotic symptoms that are not better accounted for by another diagnosis and not meeting criteria for a psychotic disorder. The rationale is to identify patients who are at high risk for transition to a psychotic disorder in the near future. However, the potential impact of using this new diagnosis in routine clinical practice settings has not been carefully examined.

METHOD

As part of the Rhode Island Methods to Improve Diagnostic Assessment and Services (MIDAS) project, a treatment-seeking psychiatric outpatient sample (n = 1,257) recruited from June 1997 to June 2002 completed a self-report measure of psychiatric symptoms and afterward were administered structured clinical interviews. For the current post hoc study, we investigated the prevalence rate of endorsing attenuated psychotic experiences to identify patients who could potentially meet criteria for APS.

RESULTS

After the exclusion of those with lifetime DSM-IV psychotic disorders, psychotic experiences remained highly prevalent in the sample (28% reported at least 1 psychotic experience during the past 2 weeks), and rates were similar across all major DSM-IV diagnostic categories. Only 1 patient (0.08%) reported psychotic experiences but did not meet criteria for another current DSM disorder; however, this individual endorsed other nonpsychotic symptoms of greater severity. Psychotic experience endorsement was positively correlated with nearly all other nonpsychotic symptom domains, and multivariate analysis showed that general clinical severity predicted endorsement of psychotic experiences (P values < .001).

CONCLUSIONS

We could not identify any patients who clearly met criteria for APS alone in our sample. Psychotic experiences appear to be common in outpatients and represent nonspecific indicators of psychopathology. Diagnosing APS in the community could result in high rates of false-positives or high rates of APS "comorbidity" with other nonpsychotic disorders, leading to the increased use of antipsychotic medications without clear need. Therefore, the clinical utility of adding APS to the diagnostic system remains highly questionable.

Axis I diagnoses and transition to psychosis in clinical high-risk patients EPOS project: prospective follow-up of 245 clinical high-risk outpatients in four countries

BACKGROUND

In selected samples, a considerable number of patients at clinical high risk of psychosis (CHR) are found to meet criteria for co-morbid clinical psychiatric disorders. It is not known how clinical diagnoses correspond to or even predict transitions to psychosis (TTP). Our aim was to examine distributions of life-time and current Axis I diagnoses, and their association with TTP in CHR patients.

METHODS

In the EPOS (European Prediction of Psychosis Study) project, six European outpatient centres in four countries examined 245 young help-seeking patients, who fulfilled the inclusion criteria for clinical risk of psychosis according to the Structured Interview for Prodromal Syndromes (SIPS 3.0) or the Bonn Scale for the Assessment of Basic Symptoms - Prediction List basic symptoms (BASBS-P). Patients who had experienced a psychotic episode lasting more than one week were excluded. Baseline and life-time diagnoses were assessed by the Structured Clinical Interview for DSM-IV (SCID-I). TTP was defined by continuation of BLIPS for more than seven days and predicted in Cox-regression analysis.

RESULTS

Altogether, 71% of the CHR patients had one or more life-time and 62% one or more current SCID-I diagnosis; about a half in each category received a diagnosis of life-time depressive and anxiety disorder. Currently, 34% suffered from depressive and 39% from anxiety disorder. Four percent received a current SCID diagnosis of bipolar, and 6.5% of somatoform disorder. During follow-up, 37 (15.1%) patients had developed full-blown psychosis. In bivariate analyses, current non-psychotic bipolar disorder associated significantly with TTP. In multivariate analyses, current bipolar disorder, somatoform and unipolar depressive disorders associated positively, and anxiety disorders negatively, with TTP.

CONCLUSIONS

Both life-time and current mood and anxiety disorders are highly prevalent among clinical help-seeking CHR patients and need to be carefully evaluated. Among CHR patients, occurrence of bipolar, somatoform and depressive disorders seems to predict TTP, while occurrence of anxiety disorder may predict non-transition to psychosis.

Identification and characterization of prodromal risk syndromes in young adolescents in the community: a population-based clinical interview study

While a great deal of research has been conducted on prodromal risk syndromes in relation to help-seeking individuals who present to the clinic, there is a lack of research on prodromal risk syndromes in the general population. The current study aimed first to establish whether prodromal risk syndromes could be detected in non-help-seeking community-based adolescents and secondly to characterize this group in terms of Axis-1 psychopathology and general functioning. We conducted in-depth clinical interviews with a population sample of 212 school-going adolescents in order to assess for prodromal risk syndromes, Axis-1 psychopathology, and global (social/occupational) functioning. Between 0.9% and 8% of the community sample met criteria for a risk syndrome, depending on varying disability criteria. The risk syndrome group had a higher prevalence of co-occurring nonpsychotic Axis-1 psychiatric disorders (OR = 4.77, 95% CI = 1.81-12.52; P < .01) and poorer global functioning (F = 24.5, df = 1, P < .0001) compared with controls. Individuals in the community who fulfill criteria for prodromal risk syndromes demonstrate strong similarities with clinically presenting risk syndrome patients not just in terms of psychotic symptom criteria but also in terms of co-occurring psychopathology and global functioning.

Physical illnesses, developmental risk factors and psychiatric diagnoses among subjects at risk of psychosis

Background

Subjects with psychoses have significantly increased rates of physical illnesses, but the nature of the relationship remains largely unknown.

Material and methods

The present study is part of the European Prediction of Psychosis Study (EPOS). Data were collected from 245 help-seeking individuals from six European centers (age 16–35) who met criteria for ultra-high risk of psychosis criteria. This paper seeks to investigate self-reported physical ill health and its associations with psychiatric symptoms and disorders, risk factors, and onset of psychosis during 48 months of follow-up.

Results

In multivariate analysis, lifetime panic disorder (OR = 2.43, 95%CI: 1.03–5.73), known complications during pregnancy and delivery (OR = 2.81, 95%CI: 1.10–7.15), female gender (OR = 2.88, 95%CI: 1.16–7.17), family history of psychosis (OR = 3.08, 95%CI: 1.18–8.07), and having a relationship (OR = 3.44, 95%CI: 1.33–8.94) were significantly associated with self-reported physician-diagnosed illness. In the Cox proportional hazard model we found no significant differences between those who had undergone a transition to psychosis and those who had not.

Conclusions

The physical health of patients defined to be at ultra-high risk of psychosis seems to be commonly impaired and associated with female gender, marital status, complications during pregnancy and birth, lifetime panic disorder, and genetic risk of psychosis.

Rationale and baseline characteristics of PREVENT: a second-generation intervention trial in subjects at-risk (prodromal) of developing first-episode psychosis evaluating cognitive behavior therapy, aripiprazole, and placebo for the prevention of psychosis

Antipsychotics, cognitive behavioral therapy (CBT), and omega-3-fatty acids have been found superior to control conditions as regards prevention of psychosis in people at-risk of first-episode psychosis. However, no large-scale trial evaluating the differential efficacy of CBT and antipsychotics has been performed yet. In PREVENT, we evaluate CBT, aripiprazole, and clinical management (CM) as well as placebo and CM for the prevention of psychosis in a randomized, double-blind, placebo-controlled trial with regard to the antipsychotic intervention and a randomized controlled trial with regard to the CBT intervention with blinded ratings. The hypotheses are first that CBT and aripiprazole and CM are superior to placebo and CM and second that CBT is not inferior to aripiprazole and CM combined. The primary outcome is transition to psychosis. By November 2010, 156 patients were recruited into the trial. The subjects were substantially functionally compromised (Social and Occupational Functioning Assessment Scale mean score 52.5) and 78.3% presented with a Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition axis I comorbid diagnosis. Prior to randomization, 51.5% of the participants preferred to be randomized into the CBT arm, whereas only 12.9% preferred pharmacological treatment. First, assessments of audiotaped treatment sessions confirmed the application of CBT-specific skills in the CBT condition and the absence of those in CM. The overall quality rating of the CBT techniques applied in the CBT condition was good. When the final results of the trial are available, PREVENT will substantially expand the current limited evidence base for best clinical practice in people at-risk (prodromal) of first-episode psychosis.

Associations between number of different type of care meetings with social network and improvement in mental well-being in adolescents at risk of first-episode psychosis

AIM

As research in the care of people at risk of developing first-episode psychosis has mostly focused on cognitive behavioural therapy and antipsychotic medication, little is known about associations between changes in mental well-being and effect of people participating in the care.

METHODS

Multiprofessional early intervention team met with adolescents who are at risk of psychosis, including coworkers and their families. Correlations were calculated between change scores in prepsychotic, functioning ability, quality of life (QoL), depression and anxiety scales, and number of family, coworker and adolescent-participating social network meetings, and total number of social network meetings during the care.

RESULTS

Larger change scores in functioning ability were positively associated with the number of social network meetings with participating coworker (P = 0.041), but not with other types of participant meetings. Larger change scores in prepsychotic symptoms were positively associated with the number of meetings where the adolescent was participating (P = 0.001), the number of network meetings where the coworker was participating (P = 0.007) and the number of all meetings (P = 0.001). The number of any other type of meetings did not associate with change scores in QoL, depression and anxiety.

CONCLUSION

According to the present results, adolescents at risk of psychosis seem to benefit from the inclusion of coworkers from the adolescents' natural surroundings in care; this could help to increase functioning ability. Different combinations of meetings, such as larger number of total meetings, larger number of meetings with the adolescent and larger number of meetings with coworkers from the adolescents' natural surroundings, seem to associate with stronger decrease in pre-psychotic symptoms.

Different vulnerability indicators for psychosis and their neuropsychological characteristics in the Northern Finland 1986 Birth Cohort

This study is one of very few that has investigated the neuropsychological functioning of both familial and clinical high risk subjects for psychosis. Participants (N = 164) were members of the Northern Finland 1986 Birth Cohort in the following four groups: familial risk for psychosis (n = 62), clinical risk for psychosis (n = 20), psychosis (n = 13), and control subjects (n = 69). The neurocognitive performance of these groups was compared across 19 cognitive variables. The two risk groups did not differ significantly from controls, but differed from the psychosis group in fine motor function. Neuropsychological impairments were not evident in a non-help-seeking high-risk sample.

Poor functioning ability is associated with high risk of developing psychosis in adolescents

BACKGROUND

While functioning ability, quality of life (QoL) and depression are widely studied phenomena in schizophrenia, little is known about functioning ability, QoL and depression, especially among adolescents at high risk of developing first-episode psychosis.

AIM

To investigate associations between high risk of developing psychosis and functioning ability, depression and QoL among adolescents.

METHODS

The data was collected by an early intervention team in Espoo, Finland, between 1 January 2007 and 31 May 2008. Subjects at high risk of developing psychosis were compared with subjects not at high risk in terms of functioning ability (GAF), QoL (16D) and depressive symptoms (RBDI) in a cross-sectional setting. The study was conducted with 80 adolescents (mean age 14.7, range 12-18 years).

RESULTS

Those at high risk of developing psychosis had significantly lower and poorer scores in functioning ability (53.4 vs. 58.4, P=0.006), had higher and poorer scores in QoL (10.81 vs. 7.05, P=0.002) and higher and poorer scores in depression (8.95 vs. 4.76, P=0.001) than those who did not meet the criteria of being at high risk of developing psychosis. Poorer functioning ability independently explained being at high risk of developing psychosis at a statistically significant level (P=0.021) in a logistic regression analysis after age, gender, depression and QoL were adjusted for.

CONCLUSIONS

Poor functioning ability seems to be associated with high risk of developing psychosis among adolescents.

Can obsessions drive you mad? Longitudinal evidence that obsessive-compulsive symptoms worsen the outcome of early psychotic experiences

OBJECTIVE

Although there is substantial comorbidity between psychotic disorder and obsessive-compulsive disorder (OCD), little is known about how these clinical phenotypes, and their subclinical extended phenotypes, covary and impact on each other over time. This study examined cross-sectional and longitudinal associations between both (extended) phenotypes in the general population.

METHOD

Data were obtained from the three waves of the NEMESIS-study. A representative population sample of 7076 participants were assessed using the composite international diagnostic interview (CIDI) at baseline (T(0)), 1 year later at T(1) and again 2 years later at T(2).

RESULTS

At T(0), a lifetime diagnosis of psychotic disorder was present in 1.5% of the entire sample, in 11.5% of the people with any OC symptom and in 23.0% of individuals diagnosed with OCD. OC symptoms at T(0) predicted incident psychotic symptoms at T(2). Similarly, T(0) psychotic symptoms predicted T(2) OC symptoms. The likelihood of persistence of psychotic symptoms or transition to psychotic disorder was higher if early psychosis was accompanied by co-occurring OC symptoms, but not the other way around.

CONCLUSION

OCD and the psychosis phenotype cluster together and predict each other at (sub)clinical level. The co-occurrence of subclinical OC and psychosis may facilitate the formation of a more 'toxic' form of persistent psychosis.

Intervention in at-risk states for developing psychosis

Indicated prevention is currently one of the most promising approaches to fight the individual and societal burden associated with psychosis and particularly schizophrenia. The number of studies is still limited, yet encouraging results have been reported from pharmacological and psychotherapeutic trials. Furthermore, it has become clear that persons characterized by the at-risk criteria are already ill and do not only need preventive intervention but also treatment. As is indicated by a recent study successfully using omega-3 fatty acids for both purposes, it may be promising to develop and investigate interventions especially for the at-risk state, independent of their effectiveness in manifest disease states. An overview on the current findings and ongoing research in this area is provided.

Probably at-risk, but certainly ill--advocating the introduction of a psychosis spectrum disorder in DSM-V

Current criteria for an increased risk of developing first-episode psychosis are associated with conversion rates many times higher than the general incidence of psychosis. Yet, non-conversions still outnumber conversions, and conversion rates across and within centres vary considerably, fueling the ongoing debate about clinical and ethical justification of indicated prevention. This debate, however, almost exclusively focuses on the predictive validity of at-risk criteria, thereby widely disregarding the main general finding: persons meeting at-risk criteria already suffer from multiple mental and functional disturbances for those they seek help. Moreover, they exhibit various psychological and cognitive deficits along with morphological and functional cerebral changes. Thereby, the majority of help-seeking at-risk persons fulfils DSM-IV's general criteria for mental disorders (defined as a clinically significant behavioural or psychological syndrome associated with disability and/or severe distress) and clearly have to be considered as 'ill', i.e., as 'patients' with a need and right for treatment. Hence, the clinical picture defined by current at-risk criteria should be more adequately perceived as not only a still insufficient attempt to define the psychotic prodrome but a psychosis spectrum disorder in its own right - akin to ICD-10's schizotypal disorder - with conversion to psychosis just being one of several outcomes. Such a disorder, whose criteria are proposed and discussed, should initially be part of DSM-V research criteria. Following from this shift in the perception of current at-risk criteria, access to standard medical care would have to be granted, and diagnosis- or symptom- rather than conversion-related interventions would have to be developed.

Should a "Risk Syndrome for Psychosis" be included in the DSMV?

The proposed Risk Syndrome for Psychosis (RS) criteria are derived from the Ultra High Risk criteria (UHR) and prodromal or Clinical High Risk criteria (CHR), and consist of subthreshold or attenuated positive psychotic symptoms with operationalized recency and frequency criteria. The rationale behind the proposed inclusion of the RS in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSMV) is that several studies have found that the UHR/prodromal/CHR criteria predict onset of psychotic disorder, mainly schizophrenia, within a brief time period of a few years. Identifying individuals meeting these criteria thus affords the possibility of early intervention to prevent or delay onset of full blown psychotic disorder. However, the RS is yet to be properly validated. Additionally, there are potential dangerous unintended consequences of the reification of this syndrome as a formal diagnosis. Thus we feel it is premature to justify inclusion of the RS in the DSM.