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Campo-Arias A, Herazo E, Caballero-Domínguez CC. Prodromal questionnaire (PQ-16) dimensionality among Colombian adolescent school students. Early Interv Psychiatry 2024. [PMID: 38738641 DOI: 10.1111/eip.13546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/01/2024] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
AIMS The study aimed to determine the dimensionality of the Spanish version of the PQ-16 among Colombian adolescent school students. METHODS A validation study was designed with the participation of 334 Colombian adolescent students aged between 13 and 17 (M = 15.2, SD = 1.1); 171 (52.1%) were girls, and 163 (47.9%) were boys, 229 (68.6%) were ninth-grade students and 105 (31.4%) were tenth-grade students. Confirmatory factor analysis was performed, internal consistency was calculated with the Kuder-Richardson and McDonald's omega tests, and correlation with suicide ideation was computed with the Kendall correlation (r). RESULTS The confirmatory factor analysis showed that the PQ-16 adequately fit a unidimensional structure: RMSEA = 0.05 (90%CI 0.04-0.06), CFI = 0.91, TLI = 0.90, SRMR = 0.05, chi-squared = 193.18 (df = 102, p < 0.001) and normalized chi-squared = 1.89. This factor presented high internal consistency: Kuder-Richardson test and McDonald's omega of 0.83. The correlation between the PQ-16 and suicide ideation was r = 0.45 (p < 0.001). CONCLUSION The PQ-16 is a one-dimensional tool with high internal consistency and correlation with suicide ideation among schooled adolescents. Further research should explore the PQ-16 performance against a structured clinical interview.
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Affiliation(s)
| | - Edwin Herazo
- Dirección General, Instituto de Investigación del Comportamiento Humano, Bogotá, Colombia
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2
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Parabiaghi A, Rossi AA, Castelnovo A, Del Fabro L, Mannarini S, Percudani ME. The Italian version of the 16-item Prodromal Questionnaire (PQ-16) and its psychometric features in help-seeking ultra-high-risk subjects and in the general population. Early Interv Psychiatry 2024. [PMID: 38375973 DOI: 10.1111/eip.13516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/21/2024]
Abstract
BACKGROUND Increasing attention to the early stages of psychosis and the identification of symptomatic prodromal states have led to the development of a growing number of screening tools. The 16-item version of the Prodromal Questionnaire (PQ-16) is a worldwide used self-administered tool for this purpose. However, to date, fundamental psychometric properties of PQ-16 were not thoroughly investigated. This study aimed to examine the structural validity, measurement invariance, reliability and other psychometrical properties of the Italian version of the PQ-16 (iPQ-16) in help-seeking individuals and in the general population. METHODS The iPQ-16 was administered to 449 young outpatients attending six community mental health services and to 318 control participants enrolled in educational environment. Confirmatory factor analyses (CFAs), measurement invariance (MI) between the help-seeking group and the general population sample, convergent validity, test-retest reliability, internal consistency, and prevalence analyses were performed. Lastly, the validity of the adopted PQ-16 cut-offs through Receiver Operating Characteristic (ROC) curves plotted against CAARMS diagnoses was also tested. RESULTS CFAs confirmed the single-factor structure for the iPQ-16 and scalar MI was reached. The iPQ-16 showed high internal consistency, test-retest reliability, convergent validity, and acceptable diagnostic accuracy. ROC analysis suggested a score of ≥4 as best cut-off. CONCLUSIONS The iPQ-16 represents a valid and reliable questionnaire for the assessment of high mental risk in both Italian outpatients and general student population. It has good psychometric properties and is easy to implement as UHR screening for clinical as well as research purposes.
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Affiliation(s)
- Alberto Parabiaghi
- Department of Health Policy, Unit for Quality of Care and Rights Promotion in Mental Health, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Alessandro Alberto Rossi
- Department of Philosophy, Sociology, Education, and Applied Psychology, Section of Applied Psychology, University of Padova, Padova, Italy
- Interdepartmental Center for Family Research, University of Padova, Padova, Italy
| | - Anna Castelnovo
- Sleep Medicine Unit, Neurocenter of Southern Switzerland, Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
- University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Lorenzo Del Fabro
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Department of Neurosciences and Mental Health, IRCCS Fondazione Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Stefania Mannarini
- Department of Philosophy, Sociology, Education, and Applied Psychology, Section of Applied Psychology, University of Padova, Padova, Italy
- Interdepartmental Center for Family Research, University of Padova, Padova, Italy
| | - Mauro Emilio Percudani
- Department of Neurosciences and Mental Health, IRCCS Fondazione Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
- Department of Mental Health and Addiction Services, ASST Grande Ospedale Metropolitano "Niguarda", Milan, Italy
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3
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Wang SM, Lam BYH, Kuo LC, Hsu HM, Ouyang WC. Facial and upper-limb movement abnormalities in individuals with psychotic-like experiences: a motion analysis study. Eur Arch Psychiatry Clin Neurosci 2023; 273:1369-1377. [PMID: 36350375 DOI: 10.1007/s00406-022-01517-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 10/26/2022] [Indexed: 11/11/2022]
Abstract
Slow movements and irregular muscle contraction have been reported separately in different studies targeting individuals with psychotic-like experiences (PLEs). To date, it remains unknown whether these two movement abnormalities, possibly associated with hypo- and hyper-dopaminergia, respectively, co-existed in one sample with PLEs and interrelated in the early stage of psychotic progression. Therefore, this study was to examine if facial and upper-limb slow movements and irregular muscle contraction co-existed in individuals with PLEs, interrelated, and were associated with PLEs. A total of 26 individuals with PLEs, who were identified using the 16-item Prodromal Questionnaire, and 26 age- and gender-matched healthy controls received the facial and upper-limb movement measurement. A motion capture system was used to record the movement procedure and thus calculate kinematic variables that represented severity of slow movements and irregular muscle contraction. Results showed that facial and upper-limb slow movements and facial irregular muscle contraction existed in individuals with PLEs. For the total sample, slower facial movements were associated with less regular facial muscle contraction; slower upper-limb movements were associated with less regular upper-limb muscle contraction. Slower and less regular facial and upper-limb movements were associated with more severe PLEs. Compensatory changes in dopaminergic neural pathways in response to elevated dopamine might explain connection between slow movements and irregular muscle contraction. Because of the ability to detect facial and upper-limb movement abnormalities objectively and sensitively, motion analysis has great applicability to sensorimotor studies for people in the psychosis continuum.
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Affiliation(s)
- Shu-Mei Wang
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Kowloon, Hong Kong.
| | - Bess Yin-Hung Lam
- Department of Counselling and Psychology, Hong Kong Shue Yan University, North Point, Hong Kong
| | - Li-Chieh Kuo
- Department of Occupational Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsiao-Man Hsu
- Clinical Medicine and Advanced Applied Research Department, Point Robotics Medtech Incorporation, Taipei, Taiwan
| | - Wen-Chen Ouyang
- Department of Geriatric Psychiatry, Jianan Psychiatric Center, Ministry of Health and Welfare, Tainan, Taiwan
- Department of Nursing, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan
- Department of Psychiatry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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4
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Pfarr JK, Meller T, Evermann U, Sahakyan L, Kwapil TR, Nenadić I. Trait schizotypy and the psychosis prodrome: Current standard assessment of extended psychosis spectrum phenotypes. Schizophr Res 2023; 254:208-217. [PMID: 36933416 DOI: 10.1016/j.schres.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 01/10/2023] [Accepted: 03/03/2023] [Indexed: 03/20/2023]
Abstract
Schizotypy has become an increasingly important construct for elaborating psychotic disorders that vary along the schizophrenic spectrum. However, different schizotypy inventories vary in conceptual approach and measurement. In addition, commonly used schizotypy scales have been seen as qualitatively different from screening instruments for prodromal schizophrenia like the Prodromal Questionnaire-16 (PQ-16). Our study investigated the psychometric properties of three schizotypy questionnaires (the Schizotypal Personality Questionnaire-Brief, Oxford-Liverpool Inventory of Feelings and Experiences, and the Multidimensional Schizotypy Scale) as well as the PQ-16 in a cohort of 383 non-clinical subjects. We initially evaluated their factor structure using Principal Component Analysis (PCA) and used Confirmatory Factor Analysis (CFA) to test a newly proposed composition of factors. PCA results support a three-factor structure of schizotypy that accounts for 71 % of the total variance, but also shows cross-loadings of some schizotypy subscales. CFA of the newly composed schizotypy factors (together with an added neuroticism factor) shows good fit. Analyses including the PQ-16 indicate considerable overlap with measures of trait schizotypy, suggesting that the PQ-16 might not be quantitatively or qualitatively different from schizotypy measurements. Taken together, results indicate that there is good support for a three-factor structure of schizotypy but also that different schizotypy measurements grasp facets of schizotypy differently. This points towards the need for an integrative approach for assessing the construct of schizotypy.
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Affiliation(s)
- Julia-Katharina Pfarr
- Department of Psychiatry and Psychotherapy, University of Marburg, Germany; Center for Mind, Brain and Behavior, University of Marburg, Germany.
| | - Tina Meller
- Department of Psychiatry and Psychotherapy, University of Marburg, Germany; Center for Mind, Brain and Behavior, University of Marburg, Germany
| | - Ulrika Evermann
- Department of Psychiatry and Psychotherapy, University of Marburg, Germany; Center for Mind, Brain and Behavior, University of Marburg, Germany
| | - Lili Sahakyan
- Department of Psychology, University of Illinois at Urbana-Champaign, United States of America; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, United States of America
| | - Thomas R Kwapil
- Department of Psychology, University of Illinois at Urbana-Champaign, United States of America; Department of Psychology, University of North Carolina at Greensboro, United States of America
| | - Igor Nenadić
- Department of Psychiatry and Psychotherapy, University of Marburg, Germany; Center for Mind, Brain and Behavior, University of Marburg, Germany
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Mengin AC, Allé MC, Koning E, Pham B, Park S, Berna F, Giersch A. Facing the pandemic and lockdown: an insight on mental health from a longitudinal study using diaries. SCHIZOPHRENIA 2022; 8:22. [PMID: 35292663 PMCID: PMC8922066 DOI: 10.1038/s41537-022-00222-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 12/16/2021] [Indexed: 11/09/2022]
Abstract
We conducted a longitudinal online study to examine attenuated psychotic symptoms (APS) over time in a sample of locked-down individuals. We used (i) questionnaires and (ii) the automatic analysis of the emotional content of narratives. Participants (N = 162) were recruited to complete an online survey 4 times between March and June 2020 (T1, T2, T3, T4). T1 completion coincided with the beginning of the lockdown, and T4 with the pandemic trough. Depression, anxiety, and stress were assessed with the DASS-42 and APS with the PQ-16. Psychosocial data such as the feeling of loneliness and social network size were also collected. The participants wrote daily narratives during the lockdown period. Anxiety and APS were the highest at T1 and decreased over time. APS and APS-associated distress were correlated with the DASS-42 at all times. APS arose acutely at the beginning of the pandemic, despite participants being socio-economically advantaged, and were related with negative emotions.
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Fekih-Romdhane F, Pandi-Perumal SR, Conus P, Krebs MO, Cheour M, Seeman MV, Jahrami HA. Prevalence and risk factors of self-reported psychotic experiences among high school and college students: A systematic review, meta-analysis, and meta-regression. Acta Psychiatr Scand 2022; 146:492-514. [PMID: 36000793 DOI: 10.1111/acps.13494] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 01/29/2023]
Abstract
BACKGROUND Adolescents are at high risk of incident psychopathology. Fleeting psychotic experiences (PEs) that emerge in young people in response to stress may be warning signs that are missed by research that fails to study stressed populations, such as late high school and college/university students. Our aim in this systematic review was to conduct a meta-analysis that estimates prevalence rates of PEs in students, and to assess whether these rates differ by gender, age, culture, and COVID-19 exposure. METHOD We searched nine electronic databases, from their inception until January 31, 2022 for relevant studies. We pooled the estimates using the DerSimonian-Laird technique and random-effects meta-analysis. Our main outcome was the prevalence of self-reported PEs in high school and college/university students. We subsequently analyzed our data by age, gender, population, country, culture, evaluation tool, and COVID-19 exposure. RESULTS Out of 486 studies retrieved, a total of 59 independent studies met inclusion criteria reporting 210' 024 students from 21 different countries. Nearly one in four students (23.31%; 95% CI 18.41%-29.05%), reported having experienced PEs (heterogeneity [Q = 22,698.23 (62), p = 0.001] τ2 = 1.4418 [1.0415-2.1391], τ = 1.2007 [1.0205-1.4626], I2 = 99.7%, H = 19.13 [18.59-19.69]). The 95% prediction intervals were 04.01%-68.85%. Subgroup analyses showed that the pooled prevalence differed significantly by population, culture, and COVID-19 exposure. CONCLUSION This meta-analysis revealed high prevalence rates of self-reported PEs among teen and young adult students, which may have significance for mental health screening in school settings. An important realization is that PEs may have very different mental health meaning in different cultures.
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Affiliation(s)
- Feten Fekih-Romdhane
- Tunis El Manar University, Faculty of Medicine of Tunis, Tunis, Tunisia.,The Tunisian Center of Early Intervention is Psychiatry, Department of psychiatry "Ibn Omrane", Razi Hospital, Manouba, Tunisia
| | - Seithikurippu R Pandi-Perumal
- Somnogen Canada Inc., Toronto, Canada.,Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Philippe Conus
- Service of General Psychiatry, Treatment and Early Intervention in Psychosis Program (TIPP-Lausanne), Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Marie-Odile Krebs
- Inserm, Laboratoire de Physiopathologie des maladies Psychiatriques, UMR_S1266 Institut de Psychiatrie et Neurosciences de Paris, Université Paris Descartes, Paris, France.,Institut de Psychiatrie (CNRS GDR 3557), Paris, France.,Faculté de Médecine Paris Descartes, Service Hospitalo-Universitaire, Centre Hospitalier Sainte-Anne, Université Paris Descartes, Paris, France
| | - Majda Cheour
- Tunis El Manar University, Faculty of Medicine of Tunis, Tunis, Tunisia.,The Tunisian Center of Early Intervention is Psychiatry, Department of psychiatry "Ibn Omrane", Razi Hospital, Manouba, Tunisia
| | - Mary V Seeman
- Department of Psychiatry, University of Toronto, Canada
| | - Haitham A Jahrami
- Psychiatric Hospital, Ministry of Health, Manama, Bahrain.,Department of Psychiatry, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
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Wang SM, Chan ST, Wong YL, Hsu HM, Lee CY, Check CY, Leung CK. Rhythmic auditory stimulation incorporated in training improved movements in individuals with psychotic-like experiences. Eur Arch Psychiatry Clin Neurosci 2022:10.1007/s00406-022-01524-3. [PMID: 36422679 DOI: 10.1007/s00406-022-01524-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022]
Abstract
Movement abnormalities, including movement slowing and irregular muscle contraction, exist in individuals with psychotic-like experiences (PLEs) and serve as vulnerable factors of developing psychotic diseases in the psychosis continuum. To date scarce studies have developed early intervention programs tackling these initial impairments, which may be caused by basal ganglia alterations, in the early stage of the psychosis course. Rhythmic auditory stimulation (RAS) is a technique of neurological music therapy and has been proved effective in inducing faster movements in patients with psychotic diseases. This pilot study examined if RAS incorporated in functional movement training reduced severity of movement slowing and irregular muscle contraction in individuals with PLEs. Seventeen individuals with PLEs were randomly allocated to receiving RAS or receiving no RAS and underwent daily 40-min movement training (picking up beans) for three weeks. This study used motion analysis to measure movement performance at pretest and posttest. Eighteen age- and gender-matched individuals without PLEs were also recruited to provide data of intact movements. Results showed that RAS may reduce severity of movement slowing and irregular muscle contraction in individuals with PLEs. This pilot study is one of the pioneering studies validating effectiveness of early intervention programs tackling movement abnormalities, which are initial impairments in the psychosis continuum, in individuals with PLEs.
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Affiliation(s)
- Shu-Mei Wang
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Kowloon, Hong Kong.
| | - Sin-Tung Chan
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Kowloon, Hong Kong
| | - Yuk-Lin Wong
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Kowloon, Hong Kong
| | - Hsiao-Man Hsu
- Clinical Medicine and Advanced Applied Research Department, Point Robotics Medtech Incorporation, New Taipei, Taiwan
| | - Cheuk-Yan Lee
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Kowloon, Hong Kong
| | - Chung-Yin Check
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Kowloon, Hong Kong
| | - Cheuk-Kiu Leung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Kowloon, Hong Kong
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Capizzi R, Pierce KM, Olino TM, Ellman LM. Item-level endorsement on the Prodromal Questionnaire in a large non-clinical sample. Schizophr Res 2022; 248:309-319. [PMID: 36155304 PMCID: PMC10131285 DOI: 10.1016/j.schres.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 07/30/2022] [Accepted: 09/04/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Brief questionnaires, such as the Prodromal Questionnaire (PQ) positive scale, have been used to pre-screen individuals who may be at clinical high-risk (CHR) for psychosis. Despite the apparent utility of the PQ, few studies have examined response styles in non-clinical settings, which this study aimed to assess. METHODS Response frequencies were examined for PQ positive subscale items in 3584 students (ages 18-35) from a nationally representative, semi-public undergraduate institution. Highly endorsed items were evaluated further in conjunction with established cutoffs and associated symptom ratings from the Structured Interview for Psychosis-risk Syndromes (SIPS) in a smaller subset of participants (n = 162). Positive subscale and distressing item responses were also evaluated by gender, race, and ethnicity using measurement invariance analyses and by comparing the relative proportion of individuals above established cutoffs. RESULTS Fifteen symptoms were endorsed by over 20 % of the sample with as high as 71 % of respondents endorsing them. Responses to 12 of these items were not associated with ratings on the SIPS. The PQ functioned similarly across demographic characteristics with strong evidence found for gender and race invariance across items and strong ethnicity invariance and partial invariance for positive subscale items and distressing items, respectively. CONCLUSIONS These findings suggest that a commonly used psychosis-risk questionnaire may not be appropriate for non-clinical samples, with the possibility of high false positive rates of those at CHR for psychosis. Future large-scale epidemiological studies should evaluate if psychosis-risk screeners can be improved to identify CHR individuals in community settings.
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Affiliation(s)
- Riley Capizzi
- Temple University, Department of Psychology & Neuroscience, United States of America
| | - Katherine M Pierce
- Temple University, Department of Psychology & Neuroscience, United States of America
| | - Thomas M Olino
- Temple University, Department of Psychology & Neuroscience, United States of America
| | - Lauren M Ellman
- Temple University, Department of Psychology & Neuroscience, United States of America.
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9
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Ma HX, Zhao J, Lin IA, Zhang XJ, Li ZJ, Wang CY, Zhou FC, Verma S. Differential contributions between objective and subjective psychosis-like experiences to suicidal ideation in college students. Early Interv Psychiatry 2022; 16:1112-1120. [PMID: 34816608 PMCID: PMC9787378 DOI: 10.1111/eip.13259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 09/27/2021] [Accepted: 11/07/2021] [Indexed: 12/30/2022]
Abstract
AIM The present study aimed to investigate the prevalence rate of objective and subjective psychosis-like experiences (PLEs) in non-help-seeking college students and to explore their differential contributions to suicidal ideation. METHODS First-year college students were recruited and surveyed with the Chinese version of the 16-item Prodromal Questionnaire (CPQ-16), Childhood Trauma Questionnaire (CTQ-SF), Patient Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 (GAD-7) and Beck Scale for Suicide Ideation (BSI). The Structured Interview of Psychosis-Risk Syndromes (SIPS) was conducted in individuals with a CPQ-16 score of 9 or higher. RESULTS Data were available for 8367 students. Three hundred and seventy of them scored 9 or higher on the CPQ-16, suggesting potential PLEs (4.42%). Among them, 194 agreed to the SIPS screening. The PLEs were confirmed in 103 individuals who scored 1-5 on any positive symptom scales of the SIPS (objective PLEs, oPLEs). For the remaining 91 individuals, their PLEs were not confirmed by the SIPS and thus were categorized as individuals with subjective PLEs (sPLEs). In univariate logistic regression, oPLEs was associated with a two times risk of suicidal ideation compared to sPLEs (OR = 1.971, p = .029). In multivariate logistic regression when non-PLE status was set as a reference, oPLEs significantly predicted suicidal ideation (OR = 3.441, p = .011), while the sPLEs (OR = 2.277, p = .091) was no longer a significant predictor after controlling for PHQ-9, GAD-7 and CPQ-SF scores. CONCLUSIONS OPLEs and sPLEs have differential contributions to suicidal ideation. OPLEs seems to be associated with a higher risk of suicidal ideation and is independent of other psychopathology.
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Affiliation(s)
- Hong-Xia Ma
- School of psychology and mental health, North China University of Science and Technology, Tangshan, China
| | - Jie Zhao
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, School of Mental Health, Beijing, China
| | - Iun-An Lin
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, School of Mental Health, Beijing, China
| | - Xiu-Jun Zhang
- School of psychology and mental health, North China University of Science and Technology, Tangshan, China
| | - Zhan-Jiang Li
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, School of Mental Health, Beijing, China
| | - Chuan-Yue Wang
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, School of Mental Health, Beijing, China
| | - Fu-Chun Zhou
- The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, School of Mental Health, Beijing, China
| | - Swapna Verma
- Office of Education, Duke-NUS Graduate Medical School, Singapore, Singapore.,Department of Psychosis & East Region, Institute of Mental Health, Singapore, Singapore
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Evermann U, Gaser C, Meller T, Pfarr JK, Grezellschak S, Nenadić I. Nonclinical psychotic-like experiences and schizotypy dimensions: Associations with hippocampal subfield and amygdala volumes. Hum Brain Mapp 2021; 42:5075-5088. [PMID: 34302409 PMCID: PMC8449098 DOI: 10.1002/hbm.25601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 12/02/2022] Open
Abstract
Schizotypy and psychotic‐like experiences (PLE) form part of the wider psychosis continuum and may have brain structural correlates in nonclinical cohorts. This study aimed to compare the effects of differential schizotypy dimensions, PLE, and their interaction on hippocampal subfields and amygdala volumes in the absence of clinical psychopathology. In a cohort of 367 psychiatrically healthy individuals, we assessed schizotypal traits using the Oxford‐Liverpool Inventory of Life Experiences (O‐LIFE) and PLE using the short form of the Prodromal Questionnaire (PQ‐16). Based on high‐resolution structural MRI scans, we used automated segmentation to estimate volumes of limbic structures. Sex and total intracranial volume (Step 1), PLE and schizotypy dimensions (Step 2), and their interaction terms (Step 3) were entered as regressors for bilateral amygdala and hippocampal subfield volumes in hierarchical multiple linear regression models. Positive schizotypy, but not PLE, was negatively associated with left amygdala and subiculum volumes. O‐LIFE Impulsive Nonconformity, as well as the two‐way interaction between positive schizotypy and PLE, were associated with larger left subiculum volumes. None of the estimators for right hemispheric hippocampal subfield volumes survived correction for multiple comparisons. Our findings support differential associations of hippocampus subfield volumes with trait dimensions rather than PLE, and support overlap and interactions between psychometric positive schizotypy and PLE. In a healthy cohort without current psychosis risk syndromes, the positive association between PLE and hippocampal subfield volume occurred at a high expression of positive schizotypy. Further studies combining stable, transient, and genetic parameters are required.
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Affiliation(s)
- Ulrika Evermann
- Cognitive Neuropsychiatry Lab, Department of Psychiatry and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany.,Center for Mind, Brain and Behavior (CMBB), Marburg, Germany
| | - Christian Gaser
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany.,Department of Neurology, Jena University Hospital, Jena, Germany
| | - Tina Meller
- Cognitive Neuropsychiatry Lab, Department of Psychiatry and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany.,Center for Mind, Brain and Behavior (CMBB), Marburg, Germany
| | - Julia-Katharina Pfarr
- Cognitive Neuropsychiatry Lab, Department of Psychiatry and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany.,Center for Mind, Brain and Behavior (CMBB), Marburg, Germany
| | - Sarah Grezellschak
- Cognitive Neuropsychiatry Lab, Department of Psychiatry and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany.,Center for Mind, Brain and Behavior (CMBB), Marburg, Germany.,Marburg University Hospital, UKGM, Marburg, Germany
| | - Igor Nenadić
- Cognitive Neuropsychiatry Lab, Department of Psychiatry and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany.,Center for Mind, Brain and Behavior (CMBB), Marburg, Germany.,Marburg University Hospital, UKGM, Marburg, Germany
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Lejuste F, Pedron L, Bonnard E, Urban M, Morvan Y, Urben S, Gaillard R, Conus P, Krebs MO. [Validation of a French version of the 16-item Prodromal Questionnaire (fPQ16) in adolescents and young adults seeking help]. Encephale 2021; 47:547-553. [PMID: 33867141 DOI: 10.1016/j.encep.2020.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 10/21/2022]
Abstract
INTRODUCTION The duration of untreated psychosis has been largely associated with poor outcomes in psychosis. Actual diagnostic tools may be used by very specialized teams and need sustained evaluation. We present a French version of a self-report questionnaire: the 16-item Prodromal Questionnaire (fPQ16). Our objective was to evaluate its predictive value for an ultra-high-risk state (UHR) or psychosis. The population enrolled was consulting in a young adults and adolescents center in Sainte-Anne hospital, Paris, France. METHODS PQ16 had first been translated into French and independently back translated and validated by the original authors. Between November 2016 and May 2018, every C'JAAD consulting patient was proposed to fill in the fPQ16. Each patient was next evaluated with the French version of the comprehensive assessment of at-risk mental state (CAARMS), which detects UHR or psychosis. Statistical analysis of fPQ16 concurrent validity was performed using ROC curves. fPQ16 acceptability was studied by four additional questions especially designed for that purpose. RESULTS One hundred participants were included. Mean age was 19.85years (SD 3.3 y). Fifty-eight percent of patients included were diagnosed with UHR (40%) or psychotic (18%) state after CAARMS evaluation. Mean score at fPQ16 was 5.7 (SD 3.8). Best cut-off score was 4 positive items, with excellent sensibility (91%) and correct specificity (60%). Positive predictive value of fPQ16 was 76%. Area under the curve was 0.85 (P<0.0001). fPQ16 showed good acceptability. DISCUSSION fPQ16 had good screening performances in our population. Cut-off score was lower than in previous studies, but performances were equal or better. As a well-accepted and short questionnaire, the fPQ16 could be a great screening tool in primary care. A version with 18-items, including two items focused on thought content and disorganization that are missing in PQ16, is under evaluation.
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Affiliation(s)
- F Lejuste
- GHU psychiatrie et neuroscience, Sainte-Anne, France
| | - L Pedron
- GHU psychiatrie et neuroscience, Sainte-Anne, France
| | - E Bonnard
- GHU psychiatrie et neuroscience, Sainte-Anne, France; Inserm, laboratoire de physiopathologie des maladies psychiatriques, IPNP, U1266, université de Paris, institut de psychiatrie (CNRS GDR 3557), Paris, France
| | - M Urban
- GHU psychiatrie et neuroscience, Sainte-Anne, France
| | - Y Morvan
- Inserm, laboratoire de physiopathologie des maladies psychiatriques, IPNP, U1266, université de Paris, institut de psychiatrie (CNRS GDR 3557), Paris, France; Laboratoire CLIPSYD, EA4430, UFR SPSE, université Paris Nanterre, 92000 Nanterre, France
| | - S Urben
- Service universitaire de psychiatrie de l'enfant et de l'adolescent, département de psychiatrie, centre hospitalier universitaire vaudois, Lausanne, Suisse
| | - R Gaillard
- GHU psychiatrie et neuroscience, Sainte-Anne, France
| | - P Conus
- Service de psychiatrie générale, département de psychiatrie, centre hospitalier universitaire vaudois, Lausanne, Suisse
| | - M-O Krebs
- GHU psychiatrie et neuroscience, Sainte-Anne, France; Inserm, laboratoire de physiopathologie des maladies psychiatriques, IPNP, U1266, université de Paris, institut de psychiatrie (CNRS GDR 3557), Paris, France.
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12
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Theory of mind in schizotypy: A behavioral and event-related potential (ERP) study. Schizophr Res Cogn 2021; 23:100190. [PMID: 33204651 PMCID: PMC7648172 DOI: 10.1016/j.scog.2020.100190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/06/2020] [Accepted: 09/23/2020] [Indexed: 11/24/2022] Open
Abstract
Background Schizophrenia is known for their theory of mind (ToM) impairment. However, this impairment in schizotypy (schizotypal traits) lacks investigation. Aims The present study investigated: (1) whether ToM ability was impaired in schizotypy; (2) whether the ERP amplitudes in nine brain regions of interest associated with ToM (e.g., frontal region) in schizotypy and healthy controls differed; and (3) whether the relationship between ToM performances and ERP amplitudes in schizotypy differed from that in healthy controls. Method Forty eight adolescents and young adults (16 schizotypy) with the mean age of 18 years were tested. The Reading the Mind in the Eyes Test (RMET) was used to assess their ToM during which ERP amplitudes were recorded. Results The schizotypy group showed significantly lower ERP amplitudes in all conditions of RMET in frontal, frontal-central, central, occipital and temporal regions when compared to those in healthy controls. Also, schizotypy's ERP amplitudes in the frontal, frontal-central, central, occipital, and temporal regions were different from those in the healthy individuals in responding to different types of ToM stimuli (positive, negative and neutral). In schizotypy group, reaction time responding to emotional stimuli was negatively related to ERP amplitudes in the frontal, central-parietal, parietal, occipital, and occipito-temporal regions during RMET while no significant correlations were found in healthy controls. Conclusion The present findings inform us with the knowledge regarding the neural and behavioral abnormality of ToM in schizotypy, suggesting that brain activity can be an alternative to detect ToM impairment in schizotypy.
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Distress severity in perceptual anomalies moderates the relationship between prefrontal brain structure and psychosis proneness in nonclinical individuals. Eur Arch Psychiatry Clin Neurosci 2021; 271:1111-1122. [PMID: 33532868 PMCID: PMC8354976 DOI: 10.1007/s00406-020-01229-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/18/2020] [Indexed: 02/07/2023]
Abstract
In the general population, psychosis risk phenotypes occur independently of attenuated prodromal syndromes. Neurobiological correlates of vulnerability could help to understand their meaningfulness. Interactions between the occurrence of psychotic-like experiences (PLE) and other psychological factors e.g., distress related to PLE, may distinguish psychosis-prone individuals from those without risk of future psychotic disorder. We aimed to investigate whether (a) correlates of total PLE and distress, and (b) symptom dimension-specific moderation effects exist at the brain structural level in non-help-seeking adults reporting PLE below and above the screening criterion for clinical high-risk (CHR). We obtained T1-weighted whole-brain MRI scans from 104 healthy adults from the community without psychosis CHR states for voxel-based morphometry (VBM). Brain structural associations with PLE and PLE distress were analysed with multiple linear regression models. Moderation of PLE by distress severity of two types of positive symptoms from the Prodromal Questionnaire (PQ-16) screening inventory was explored in regions-of-interest after VBM. Total PQ-16 score was positively associated with grey matter volume (GMV) in prefrontal regions, occipital fusiform and lingual gyri (p < 0.05, FDR peak-level corrected). Overall distress severity and GMV were not associated. Examination of distress severity on the positive symptom dimensions as moderators showed reduced strength of the association between PLE and rSFG volume with increased distress severity for perceptual PLE. In this study, brain structural variation was related to PLE level, but not distress severity, suggesting specificity. In healthy individuals, positive relationships between PLE and prefrontal volumes may indicate protective features, which supports the insufficiency of PLE for the prediction of CHR. Additional indicators of vulnerability, such as distress associated with perceptual PLE, change the positive brain structure relationship. Brain structural findings may strengthen clinical objectives through disentanglement of innocuous and risk-related PLE.
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14
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Pionke-Ubych R, Frydecka D, Cechnicki A, Nelson B, Gawęda Ł. The Indirect Effect of Trauma via Cognitive Biases and Self-Disturbances on Psychotic-Like Experiences. Front Psychiatry 2021; 12:611069. [PMID: 33854448 PMCID: PMC8039125 DOI: 10.3389/fpsyt.2021.611069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 03/08/2021] [Indexed: 12/29/2022] Open
Abstract
Although self-disturbances (SD) are considered to be a core psychopathological feature of schizophrenia spectrum disorders, there is still insufficient empirical data on the mechanisms underlying these anomalous self-experiences. The aim of the present study was to test a hypothesized model in which cognitive biases and exposure to traumatic life events are related to the frequency of SD which, in turn, contribute to the frequency of psychotic-like experiences (PLEs). Our sample consisted of 193 Polish young adults from the general population (111 females; 18-35 years of age, M = 25.36, SD = 4.69) who experience frequent PLEs. Participants were interviewed for PLEs, SD and social functioning as well as completed self-reported questionnaires and behavioral tasks that measure cognitive biases (e.g., safety behaviors, attention to threat, external attribution, jumping to conclusion, source monitoring, overperceptualization). The model was tested using path analysis with structural equation modeling. All of the hypothesized relationships were statistically significant and our model fit the data well [χ2(23) = 31.201; p = 0.118; RMSEA = 0.043 (90% CI = 0.00-0.078), CFI = 0.985, SRMR = 0.041, TLI = 0.976]. The results revealed a significant indirect effect of traumatic life events on PLEs through SD and self-reported cognitive biases. However, performance-based cognitive biases measured with three behavioral tasks were unrelated to SD and PLEs. The frequency of SD explained a substantial part (43.1%) of the variance in PLEs. Further studies with longitudinal designs and clinical samples are required to verify the predictive value of the model.
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Affiliation(s)
- Renata Pionke-Ubych
- Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
| | - Dorota Frydecka
- Department of Psychiatry, Wroclaw Medical University, Wroclaw, Poland
| | - Andrzej Cechnicki
- Department of Community Psychiatry, Chair of Psychiatry, Medical College Jagiellonian University, Krakow, Poland
| | - Barnaby Nelson
- Orygen, Parkville, VIC, Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Łukasz Gawęda
- Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland.,Medical University of Warsaw, Warsaw, Poland
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15
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Howie C, Potter C, Shannon C, Davidson G, Mulholland C. Screening for the at-risk mental state in educational settings: A systematic review. Early Interv Psychiatry 2020; 14:643-654. [PMID: 31883215 DOI: 10.1111/eip.12926] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/10/2019] [Accepted: 12/14/2019] [Indexed: 12/20/2022]
Abstract
AIM The at-risk mental state (ARMS) allows clinicians to identify individuals who have an increased risk of developing psychosis. At present, most screening for psychosis-risk is carried out within help-seeking populations; however, screening within educational settings may allow clinicians to identify individuals at-risk earlier and to increase the rate of detection. This review aimed to examine screening for the ARMS in educational settings, with the key questions: what screening tools have been used in educational settings, can screening in educational settings detect individuals with ARMS, what threshold scores in screening tools indicate a positive screen in educational settings, are there comorbid mental health conditions associated with the ARMS in educational settings? METHODS Searches were carried out in PsycINFO, MEDLINE, EMBASE, Scopus and Web of Science and reference lists of included articles searched. Results were summarized using narrative synthesis. RESULTS Nine papers were included for narrative synthesis. A variety of screening tools have been used when screening for the ARMS in educational settings. The majority of studies have been conducted in schools. The prevalence of the ARMS reported in ranges from 1% to 8%. CONCLUSIONS The ARMS indicates the presence of distressing symptoms for which intervention may be beneficial. Screening programmes within educational settings may allow outreach for prodromal symptoms at an earlier stage than clinical settings currently provided for.
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Affiliation(s)
- Clare Howie
- School of Medicine, Queen's University Belfast, Belfast, UK
| | - Claire Potter
- School of Medicine, Queen's University Belfast, Belfast, UK
| | - Ciaran Shannon
- Holywell Hospital, Northern Health and Social Care Trust, Antrim, UK
| | - Gavin Davidson
- School of Social Sciences, Education and Social Work, Queen's University Belfast, Belfast, UK
| | - Ciaran Mulholland
- School of Medicine, Queen's University Belfast, Belfast, UK.,Holywell Hospital, Northern Health and Social Care Trust, Antrim, UK
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16
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Salazar de Pablo G, Catalan A, Fusar-Poli P. Clinical Validity of DSM-5 Attenuated Psychosis Syndrome: Advances in Diagnosis, Prognosis, and Treatment. JAMA Psychiatry 2020; 77:311-320. [PMID: 31746950 DOI: 10.1001/jamapsychiatry.2019.3561] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
IMPORTANCE Since the release of the DSM-5 diagnosis of attenuated psychosis syndrome (DSM-5-APS) in 2013, several research studies have investigated its clinical validity. Although critical and narrative reviews have reviewed these progresses, no systematic review has comprehensively summarized the available evidence regarding the clinical validity of DSM-5-APS. OBJECTIVE To provide current evidence on the clinical validity of DSM-5-APS, focusing on recent advances in diagnosis, prognosis, and treatment. EVIDENCE REVIEW A multistep literature search using the Web of Science database, Cochrane Central Register of Reviews, Ovid/PsychINFO, conference proceedings, and trial registries from database inception to June 16, 2019, was conducted following PRISMA and MOOSE guidelines and PROSPERO protocol. Studies with original data investigating individuals diagnosed using DSM-5-APS or meeting comparable criteria were included. The results of the systematic review were summarized in tables and narratively synthesized against established evidence-based antecedent, concurrent, and prognostic validators. A quantitative meta-analysis was conducted to explore the cumulative risk of psychosis onset at 6, 12, 24, and 36 months in individuals diagnosed using DSM-5-APS criteria. FINDINGS The systematic review included 56 articles, which reported on 124 validators, including 15 antecedent, 55 concurrent, and 54 prognostic validators. The epidemiological prevalence of the general non-help-seeking young population meeting DSM-5-APS criteria was 0.3%; the prevalence of individuals meeting DSM-5-APS criteria was variable in clinical samples. The interrater reliability for DSM-5-APS criteria was comparable with that of other DSM-5 mental disorders and can be optimized by the use of specific psychometric instruments. DSM-5-APS criteria were associated with frequent depressive comorbid disorders, distress, suicidality, and functional impairment. The meta-analysis included 23 prospective cohort studies, including 2376 individuals. The meta-analytical risk of psychosis onset was 11% at 6 months, 15% at 12 months, 20% at 24 months, and 23% at 36 months. Research into predisposing and precipitating epidemiological factors, neurobiological correlates, and effective treatments for DSM-5-APS criteria has been limited. CONCLUSIONS AND RELEVANCE Over recent years, DSM-5-APS criteria have received substantial concurrent and prognostic validation, mostly driven by research into the clinical high-risk state for psychosis. Precipitating and predisposing factors, neurobiological correlates, and effective treatments are undetermined to date.
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Affiliation(s)
- Gonzalo Salazar de Pablo
- Early Psychosis: Interventions and Clinical-detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.,Institute of Psychiatry and Mental Health, Department of Psychiatry, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Universidad Complutense, Centro de Investigación Biomédica en Red Salud Mental (CIBERSAM), Madrid, Spain
| | - Ana Catalan
- Early Psychosis: Interventions and Clinical-detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.,Department of Psychiatry, Basurto University Hospital, Bilbao, Spain.,Mental Health Group, BioCruces Health Research Institute, Bizkaia, Spain.,Neuroscience Department, University of the Basque Country UPV/EHU, Leioa, Spain
| | - Paolo Fusar-Poli
- Early Psychosis: Interventions and Clinical-detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.,OASIS Service, South London and Maudsley NHS Foundation Trust, London, United Kingdom.,Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.,Maudsley Biomedical Research Centre, National Institute for Health Research, South London and Maudsley NHS Foundation Trust, London, United Kingdom
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17
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Broersen M, Frieswijk N, Kroon H, Vermulst AA, Creemers DHM. Young Patients With Persistent and Complex Care Needs Require an Integrated Care Approach: Baseline Findings From the Multicenter Youth Flexible ACT Study. Front Psychiatry 2020; 11:609120. [PMID: 33324268 PMCID: PMC7724087 DOI: 10.3389/fpsyt.2020.609120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 10/29/2020] [Indexed: 12/27/2022] Open
Abstract
Background: The Multicenter Youth Flexible ACT Study is an ongoing observational prospective cohort study that examines the effects of Youth Flexible ACT (Assertive Community Treatment) on young people with complex care needs who are difficult to engage in traditional (office-based) mental health services. However, a clear and detailed description of this patient group is lacking. In the current paper, we present baseline characteristics and psychosocial outcomes of the Youth Flexible ACT target group and explore the existence of underlying specific patient subgroups. Methods: Sixteen Youth Flexible ACT teams from seven mental healthcare institutes in the Netherlands participated in the study. Research participants were monitored for 18 months and administered questionnaires measuring psychiatric- and social functioning every 6 months, yielding four measurements. Baseline data were obtained from 199 adolescents, their mental health workers, and parents/carers. Latent Class Analysis based on HoNOSCA scores (measuring psychosocial and daily functioning) was conducted to identify underlying subgroups. Results: The target group of Youth Flexible ACT mainly consisted of patients older than 15 years of age with a history of (specialized) mental healthcare. They face many complex problems, including trauma; developmental, mood, and anxiety disorders; and problems with school attendance, family life, and peer relationships. Other frequently reported difficulties were substance misuse, the involvement of the legal system or police, problems with intellectual functioning, and personal finance. Patients were classified into four distinct classes: the "internalizing," "externalizing," "non-specific," and the "overly impulsive" subgroup. Each subgroup had its unique pattern of difficulties and focus, respectively, high levels of depression and anxiety, disruptive behavior, unspecific difficulties, and substance misuse. Conclusions: As expected, patients in Youth Flexible ACT experienced many severe problems, rendering them vulnerable to fragmented and, thus, ineffective care. Our findings underscore the need for an integrated care approach with a multidisciplinary team of skilled professionals that can bridge these wide-ranging psychosocial problems, as each class of participants experienced a different set of difficulties. Youth Flexible ACT teams need to adjust their care services accordingly.
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Affiliation(s)
- Marieke Broersen
- GGZ Oost Brabant, Oss, Netherlands.,Tranzo - Tilburg School of Social and Behavioral Sciences, Tilburg University, Tilburg, Netherlands
| | | | - Hans Kroon
- Tranzo - Tilburg School of Social and Behavioral Sciences, Tilburg University, Tilburg, Netherlands.,Trimbos Institute, Utrecht, Netherlands
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18
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Berry C, Othman E, Tan JC, Gee B, Byrne RE, Hodgekins J, Michelson D, Ng ALO, Marsh NV, Coker S, Fowler D. Assessing social recovery of vulnerable youth in global mental health settings: a pilot study of clinical research tools in Malaysia. BMC Psychiatry 2019; 19:188. [PMID: 31221136 PMCID: PMC6585120 DOI: 10.1186/s12888-019-2164-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 05/28/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A social recovery approach to youth mental health focuses on increasing the time spent in valuable and meaningful structured activities, with a view to preventing enduring mental health problems and social disability. In Malaysia, access to mental health care is particularly limited and little research has focused on identifying young people at risk of serious socially disabling mental health problems such as psychosis. We provide preliminary evidence for the feasibility and acceptability of core social recovery assessment tools in a Malaysian context, comparing the experiential process of engaging young Malaysian participants in social recovery assessments with prior accounts from a UK sample. METHODS Nine vulnerable young people from low-income backgrounds were recruited from a non-government social enterprise and partner organisations in Peninsular Malaysia. Participants completed a battery of social recovery assessment tools (including time use, unusual experiences, self-schematic beliefs and values). Time for completion and completion rates were used as indices of feasibility. Acceptability was examined using qualitative interviews in which participants were asked to reflect on the experience of completing the assessment tools. Following a deductive approach, the themes were examined for fit with previous UK qualitative accounts of social recovery assessments. RESULTS Feasibility was indicated by relatively efficient completion time and high completion rates. Qualitative interviews highlighted the perceived benefits of social recovery assessments, such as providing psychoeducation, aiding in self-reflection and stimulating goal setting, in line with findings from UK youth samples. CONCLUSIONS We provide preliminary evidence for the feasibility and acceptability of social recovery assessment tools in a low-resource context, comparing the experiential process of engaging young Malaysian participants in social recovery assessments with prior accounts from a UK sample. We also suggest that respondents may derive some personal and psychoeducational benefits from participating in assessments (e.g. of their time use and mental health) within a social recovery framework.
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Affiliation(s)
- Clio Berry
- School of Psychology, Pevensey I, University of Sussex, Falmer, Brighton, East Sussex, BN1 9QH, UK. .,Research & Development, Sussex Partnership NHS Foundation Trust, Sussex Education Centre, Millview Hospital, Nevill Avenue, Hove, BN3 7HY, UK.
| | - Ellisha Othman
- SOLS HEALTH, SOLS 24/7, 1Petaling Commerz and Residential Condos, #G-8, Jalan, 1C/149, Off Jalan Sungai Besi, Sungai Besi, 57100 Kuala Lumpur, Malaysia
| | - Jun Chuen Tan
- SOLS HEALTH, SOLS 24/7, 1Petaling Commerz and Residential Condos, #G-8, Jalan, 1C/149, Off Jalan Sungai Besi, Sungai Besi, 57100 Kuala Lumpur, Malaysia
| | - Brioney Gee
- 0000 0001 1092 7967grid.8273.eClinical Psychology, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ UK ,grid.451148.dResearch & Development, Norfolk & Suffolk NHS Foundation Trust, 80 St Stephens Road, Norwich, NR1 3RE UK
| | - Rory Edward Byrne
- 0000 0004 0430 6955grid.450837.dPsychosis Research Unit, Greater Manchester Mental Health NHS Foundation Trust, Psychosis Research UnitHarrop House, Prestwich Hospital, Bury New Road, Manchester, M25 3BL UK
| | - Joanne Hodgekins
- 0000 0001 1092 7967grid.8273.eClinical Psychology, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ UK ,grid.451148.dResearch & Development, Norfolk & Suffolk NHS Foundation Trust, 80 St Stephens Road, Norwich, NR1 3RE UK
| | - Daniel Michelson
- 0000 0004 1936 7590grid.12082.39School of Psychology, Pevensey I, University of Sussex, Falmer, Brighton, East Sussex BN1 9QH UK
| | - Alvin Lai Oon Ng
- SOLS HEALTH, SOLS 24/7, 1Petaling Commerz and Residential Condos, #G-8, Jalan, 1C/149, Off Jalan Sungai Besi, Sungai Besi, 57100 Kuala Lumpur, Malaysia ,grid.430718.9Department of Psychology, Faculty of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, Petaling Jaya, Selangor Malaysia
| | - Nigel V. Marsh
- grid.456586.cDepartment of Psychology, James Cook University, 149 Sims Drive, Singapore, 387380 Singapore
| | - Sian Coker
- SOLS HEALTH, SOLS 24/7, 1Petaling Commerz and Residential Condos, #G-8, Jalan, 1C/149, Off Jalan Sungai Besi, Sungai Besi, 57100 Kuala Lumpur, Malaysia ,0000 0001 1092 7967grid.8273.eClinical Psychology, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ UK ,grid.430718.9Department of Psychology, Faculty of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, Petaling Jaya, Selangor Malaysia
| | - David Fowler
- 0000 0004 1936 7590grid.12082.39School of Psychology, Pevensey I, University of Sussex, Falmer, Brighton, East Sussex BN1 9QH UK
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19
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van der Gaag M, van den Berg D, Ising H. CBT in the prevention of psychosis and other severe mental disorders in patients with an at risk mental state: A review and proposed next steps. Schizophr Res 2019; 203:88-93. [PMID: 28869097 DOI: 10.1016/j.schres.2017.08.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/10/2017] [Accepted: 08/15/2017] [Indexed: 02/06/2023]
Abstract
Patients with an 'At risk mental state' (ARMS) for developing psychosis can be treated successfully with CBT to postpone and prevent the transition to a first psychotic episode. A characteristic of individuals that meet ARMS criteria is that they are still open for multiple explanations for extraordinary experiences. CBT aims to normalize extraordinary experiences with education and to prevent delusional explanations. The treatment is not only effective, but also cost-saving in averting psychosis as well as in reducing disability adjusted life years at 18- and 48-month follow-up. Profiling within the ARMS group results in a personalized treatment. The screening and early treatment for ARMS fulfills all the criteria of the World Health Organization and is ready to be routine screening and treatment in mental health care. At the same time, ARMS patients are complex patients with multi-morbid disorders. Especially childhood trauma is associated to ARMS status, together with co-morbid PTSD, depression, substance abuse and anxiety disorders. Psychotic symptoms appear to be severity markers in other non-psychotic disorders. Preventing psychosis in ARMS patients should be broadened to also address other disorders and aim to reduce chronicity of psychopathology and improve social functioning in general. Several mechanisms play a part in psychopathology in ARMS patients such as stress sensitivity as a result of adverse experiences, dopamine sensitivity that is associated with salience and aggravates several cognitive biases, dissociation mediating between trauma and hallucinations, and low self-esteem and self-stigma. New avenues to treat the complexity of ARMS patients will be proposed.
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Affiliation(s)
- Mark van der Gaag
- Vrije Universiteit, Amsterdam Public Health Research, Parnassia Psychiatric Institute, Department of Clinical Psychology, Van der Boechorsttraat 1, 1081 BT Amsterdam, The Netherlands.
| | - David van den Berg
- Parnassia Psychiatric Institute, Department of Psychosis Research, Zoutkeetsingel 40, 2512 HN The Hague, The Netherlands.
| | - Helga Ising
- Parnassia Psychiatric Institute, Department of Psychosis Research, Zoutkeetsingel 40, 2512 HN The Hague, The Netherlands.
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20
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Xu L, Wang Y, Cui H, Tang Y, Wang J, Tang X, Zhang B, Wei Y, Zhu Y, Jiang L, Qian Z, Li H, Zhang T, Wang J. Identification and prediction of clinical high risk of psychosis in Chinese outpatients using two-stage screening. Schizophr Res 2018; 202:284-290. [PMID: 29929774 DOI: 10.1016/j.schres.2018.06.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 02/09/2018] [Accepted: 06/10/2018] [Indexed: 11/27/2022]
Abstract
Two-stage screening, involving a self-rating report, followed by a structured interview, has been proposed for identifying clinical high risk of psychosis (CHR) for nearly two decades. This study used PRIME Screen-Revised (PS-R) and Structured Interview for Prodromal Syndromes (SIPS) to investigate the predictive validity of the two-stage screening. Of 566 participants who completed two-stage screening in this study, 192 were PS-R(-) and 374 were PS-R(+). After being interviewed with SIPS, 112 were rated as CHR(+), 109 were diagnosed with psychosis, and the other 345 individuals were CHR(-). Those who were rated through SIPS as CHR(+) and CHR(-) were followed up within 2 years to observe their clinical outcome. Ninety one (81.3%) CHR(+) and 171 (49.6%) CHR(-) individuals completed the investigation at baseline and the two-year follow-up. The cumulative conversion rate to psychosis was 27.5% in CHR(+) group, but only 1.7% in CHR(-) group, with a significant difference between the two groups (log-rank test, χ2 = 30.07, p < 0.001). In terms of two-stage screening, PS-R(-)/CHR(-), PS-R(-)/CHR(+), and PS-R(+)/CHR(-) groups were viewed as expected negative (EN), and the PS-R(+)/CHR(+) group as expected positive (EP), and the sensitivity and specificity was 64.3% and 79.1%, respectively. Furthermore, Kaplan-Meyer survival analysis showed that EP group were more likely to convert to psychosis than EN group (log-rank test, χ2 = 16.702, p < 0.001). Two-stage screening indeed saves much time and alleviates the workload, but may exclude some target individuals. Optimizing self-report scale, and forming a nurse-doctor-interviewer coalition are likely to improve the use of self-rating report and structured interview.
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Affiliation(s)
- LiHua Xu
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - Yan Wang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - HuiRu Cui
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - YingYing Tang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China; Brain Science and Technology Research Center, Shanghai Jiao Tong University, Shanghai, PR China
| | - JunJie Wang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - XiaoChen Tang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - Bin Zhang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - YanYan Wei
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - YiKang Zhu
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - LiJuan Jiang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - ZhenYing Qian
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China
| | - HuiJun Li
- Department of Psychology, Florida Agricultural & Mechanical University, Tallahassee, FL, United States of America; Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America
| | - TianHong Zhang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China; Brain Science and Technology Research Center, Shanghai Jiao Tong University, Shanghai, PR China.
| | - JiJun Wang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai 200030, PR China; Brain Science and Technology Research Center, Shanghai Jiao Tong University, Shanghai, PR China; Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai, PR China.
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Savill M, D'Ambrosio J, Cannon TD, Loewy RL. Psychosis risk screening in different populations using the Prodromal Questionnaire: A systematic review. Early Interv Psychiatry 2018; 12:3-14. [PMID: 28782283 PMCID: PMC5812357 DOI: 10.1111/eip.12446] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/18/2017] [Accepted: 03/18/2017] [Indexed: 01/31/2023]
Abstract
AIM Diagnosing individuals at ultra high risk (UHR) for psychosis can improve early access to treatment, and a two-stage model utilizing self-report screening followed by a clinical interview can be accurate and efficient. However, it is currently unclear which screening cut-offs to adopt with different populations. METHODS A systematic review of diagnostic accuracy studies evaluating the Prodromal Questionnaire (PQ) as a preliminary screener for UHR and psychosis was conducted to examine screening effectiveness in different contexts. MedLine, PsycInfo, SCOPUS and ProQuest Dissertations and Abstracts databases were electronically searched, along with a review screen and citation search of key papers. Findings were summarized in a narrative synthesis. RESULTS In total, 14 diagnostic accuracy studies and 45 studies using the PQ as a screening tool for UHR and psychosis were included. In all settings, the 3 different versions of the PQ were all found to accurately identify UHR and full psychosis. Higher cut-off points were required in non-help-seeking samples, relative to general help-seeking populations, which in turn were higher than those needed in samples highly enriched with UHR participants. CONCLUSION The findings support the use of the PQ as a preliminary screening tool for UHR in different settings; however, higher thresholds in lower UHR-prevalence populations are necessary to minimize false positives. Including the distress criteria, rather than just number of symptoms, may improve screening effectiveness. Different thresholds may be appropriate in different contexts depending on the importance of sensitivity vs specificity. Protocol registration: CRD42016033004.
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Affiliation(s)
- Mark Savill
- Department of Psychiatry, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California
| | - Jennifer D'Ambrosio
- Department of Psychiatry, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California
| | - Tyrone D Cannon
- Departments of Psychology and Psychiatry, Yale University, New Haven, Connecticut
| | - Rachel L Loewy
- Department of Psychiatry, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California
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Psychometric Properties of Prodromal Questionnaire-Brief Version among Chinese Help-Seeking Individuals. PLoS One 2016; 11:e0148935. [PMID: 26859774 PMCID: PMC4747512 DOI: 10.1371/journal.pone.0148935] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 01/24/2016] [Indexed: 12/26/2022] Open
Abstract
Prodromal Questionnaire (PQ) and Structured Interview for Prodromal Syndromes (SIPS) have been used as a two-stage process for identifying subjects at clinical high risk (CHR) of psychosis. The Prodromal Questionnaire-Brief version (PQ-B) contains 21 items derived from the PQ. The present study aimed to examine the psychometric properties of PQ-B in a Chinese help-seeking outpatient sample and to explore which items can better predict CHR diagnosis by SIPS and future transition to psychosis. In our preliminary epidemiological study, 1461 patients from a pool of 2101 individuals (15–45 years of age) completed the two-stage process. In the present study, 239 (20%) people were randomly selected among the sample who met the initial PQ-B screening criteria but had no positive diagnosis on SIPS, as well as 72 individuals with negative results on both PQ-B and SIPS, 89 prodromal and 105 psychotic subjects, yielding a total of 505 participants. The internal consistency coefficient for the PQ-B was good, with a Cronbach’s alpha of 0.897. The concordant validity of PQ-B with SIPS dichotomized diagnosis of prodrome/psychosis versus no psychosis was 0.54. To ensure 80% or a higher sensitivity and a certain specificity, 7 and 24 were respectively set as the cutoff points for the PQ-B total score and distress score for Chinese help-seeking outpatients. A logistic regression model based on six PQ-B items could allow predicting the psychotic diagnosis on SIPS, with an accuracy of 65.8%. Prodromal individuals who scored higher on the 12th item of PQ-B (Do you worry at times that something may be wrong with your mind?) were less likely to convert to psychosis. PQ-B is a useful instrument for screening CHR subjects, but the cutoff score may be higher than that recommended by the author scores for help-seeking individuals in outpatient clinics. Some specific PQ-B items may have significant predictive power on dichotomized SIPS diagnoses and deserve special attention from researchers in future studies.
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