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Modeling psychological function in patients with schizophrenia with the PANSS: an international multi-center study

Published online by Cambridge University Press:  15 April 2020

Konstantinos N. Fountoulakis
Affiliation:
3rd Department of Psychiatry, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
Elena Dragioti
Affiliation:
Department of Medical and Health Sciences (IMH), Faculty of Health Sciences, Linköping University, Linköping, Sweden Hallunda Psychiatric Outpatient Clinic, Stockholm Psychiatric Southwest Clinic, Karolinska Huddinge University Hospital, Huddinge, Sweden
Antonis T. Theofilidis
Affiliation:
3rd Department of Psychiatry, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
Tobias Wiklund
Affiliation:
Department of Medical and Health Sciences (IMH), Faculty of Health Sciences, Linköping University, Linköping, Sweden Hallunda Psychiatric Outpatient Clinic, Stockholm Psychiatric Southwest Clinic, Karolinska Huddinge University Hospital, Huddinge, Sweden
Xenofon Atmatzidis
Affiliation:
Department of Medical and Health Sciences (IMH), Faculty of Health Sciences, Linköping University, Linköping, Sweden Hallunda Psychiatric Outpatient Clinic, Stockholm Psychiatric Southwest Clinic, Karolinska Huddinge University Hospital, Huddinge, Sweden
Ioannis Nimatoudis
Affiliation:
3rd Department of Psychiatry, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
Erik Thys
Affiliation:
University Psychiatric Center, Katholieke Universiteit Leuven, Kortenberg, Belgium
Martien Wampers
Affiliation:
University Psychiatric Center, Katholieke Universiteit Leuven, Kortenberg, Belgium Department of Neurosciences, Katholieke Universiteit Leuven, Leuven, Belgium
Luchezar Hranov
Affiliation:
University Multiprofile Hospital for Active Treatment in Neurology and Psychiatry "Sveti Naum", Sofia, Bulgaria
Trayana Hristova
Affiliation:
University Multiprofile Hospital for Active Treatment in Neurology and Psychiatry "Sveti Naum", Sofia, Bulgaria
Daniil Aptalidis
Affiliation:
University Multiprofile Hospital for Active Treatment in Neurology and Psychiatry "Sveti Naum", Sofia, Bulgaria
Roumen Milev
Affiliation:
Department of Psychiatry, Queen’s University, Providence Care Hospital, Kingston, Ontario, Canada
Felicia Iftene
Affiliation:
Department of Psychiatry, Queen’s University, Providence Care Hospital, Kingston, Ontario, Canada
Filip Spaniel
Affiliation:
National Institute of Mental Health, Klecany, Czech Republic
Pavel Knytl
Affiliation:
National Institute of Mental Health, Klecany, Czech Republic
Petra Furstova
Affiliation:
National Institute of Mental Health, Klecany, Czech Republic
Tiina From
Affiliation:
Department of Psychiatry, University of Turku, Turku, Finland
Henry Karlsson
Affiliation:
Department of Psychiatry, University of Turku, Turku, Finland
Maija Walta
Affiliation:
Department of Psychiatry, University of Turku, Turku, Finland
Raimo K.R. Salokangas
Affiliation:
Department of Psychiatry, University of Turku, Turku, Finland
Jean-Michel Azorin
Affiliation:
Department of Psychiatry, Sainte Marguerite University Hospital, Marseille, France Timone Institute of Neuroscience, Marseille, France
Justine Bouniard
Affiliation:
Department of Psychiatry, Sainte Marguerite University Hospital, Marseille, France Timone Institute of Neuroscience, Marseille, France
Julie Montant
Affiliation:
Department of Psychiatry, Sainte Marguerite University Hospital, Marseille, France Timone Institute of Neuroscience, Marseille, France
Georg Juckel
Affiliation:
Department of Psychiatry, Ruhr University Bochum, Bochum, Germany
Ida S. Haussleiter
Affiliation:
Department of Psychiatry, Ruhr University Bochum, Bochum, Germany
Athanasios Douzenis
Affiliation:
2nd Department of Psychiatry, National and Kapodistrian University of Athens, Athens, Greece
Ioannis Michopoulos
Affiliation:
2nd Department of Psychiatry, National and Kapodistrian University of Athens, Athens, Greece
Panagiotis Ferentinos
Affiliation:
2nd Department of Psychiatry, National and Kapodistrian University of Athens, Athens, Greece
Nikolaos Smyrnis
Affiliation:
Department of Psychiatry, National and Kapodistrian University of Athens School of Medicine, Eginition Hospital, Athens, Greece
Leonidas Mantonakis
Affiliation:
Department of Psychiatry, National and Kapodistrian University of Athens School of Medicine, Eginition Hospital, Athens, Greece
Zsófia Nemes
Affiliation:
Nyírő Gyula Hospital, Budapest, Hungary
Xenia Gonda
Affiliation:
Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
Dora Vajda
Affiliation:
Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
Anita Juhasz
Affiliation:
Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
Amresh Shrivastava
Affiliation:
Western University, London, Ontario, Canada
John Waddington
Affiliation:
Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
Maurizio Pompili
Affiliation:
Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
Anna Comparelli
Affiliation:
Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
Valentina Corigliano
Affiliation:
Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
Elmars Rancans
Affiliation:
Department of Psychiatry and Narcology, Riga Stradins University, Riga, Latvia
Alvydas Navickas
Affiliation:
Department of Clinic of Psychiatric, Faculty of Medicine, Vilnius University, Vilnius, Lithuania Department of Psychosocial Rehabilitation, Vilnius Mental Health Center, Vilnius, Lithuania Department for Psychosis Treatment, Vilnius Mental Health Center, Vilnius, Lithuania
Jan Hilbig
Affiliation:
Department of Clinic of Psychiatric, Faculty of Medicine, Vilnius University, Vilnius, Lithuania Department of Psychosocial Rehabilitation, Vilnius Mental Health Center, Vilnius, Lithuania Department for Psychosis Treatment, Vilnius Mental Health Center, Vilnius, Lithuania
Laurynas Bukelskis
Affiliation:
Department of Clinic of Psychiatric, Faculty of Medicine, Vilnius University, Vilnius, Lithuania Department of Psychosocial Rehabilitation, Vilnius Mental Health Center, Vilnius, Lithuania Department for Psychosis Treatment, Vilnius Mental Health Center, Vilnius, Lithuania
Lidija I. Stevovic
Affiliation:
Clinical Department of Psychiatry, Clinical Centre of Montenegro, Podgorica, Montenegro Department of Psychiatry, School of Medicine, University of Montenegro, Podgorica, Montenegro Clinical Department of Neurology, Clinical Centre of Montenegro, Podgorica, Montenegro
Sanja Vodopic
Affiliation:
Clinical Department of Psychiatry, Clinical Centre of Montenegro, Podgorica, Montenegro Department of Psychiatry, School of Medicine, University of Montenegro, Podgorica, Montenegro Clinical Department of Neurology, Clinical Centre of Montenegro, Podgorica, Montenegro
Oluyomi Esan
Affiliation:
Department of Psychiatry, College of Medicine, University of Ibadan, Ibadan, Nigeria
Oluremi Oladele
Affiliation:
Department of Psychiatry, College of Medicine, University of Ibadan, Ibadan, Nigeria
Christopher Osunbote
Affiliation:
Department of Psychiatry, College of Medicine, University of Ibadan, Ibadan, Nigeria
Janusz Κ. Rybakowski
Affiliation:
Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
Pawel Wojciak
Affiliation:
Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
Klaudia Domowicz
Affiliation:
Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
Maria L. Figueira
Affiliation:
Department of Psychiatry and Mental Health, Santa Maria University Hospital, Lisbon, Portugal
Ludgero Linhares
Affiliation:
Department of Psychiatry and Mental Health, Santa Maria University Hospital, Lisbon, Portugal
Joana Crawford
Affiliation:
Department of Psychiatry and Mental Health, Santa Maria University Hospital, Lisbon, Portugal
Anca-Livia Panfil
Affiliation:
University of Medicine and Pharmacy of Târgu Mures, Târgu Mures, Romania
Daria Smirnova
Affiliation:
Department of Psychiatry, Samara Psychiatric Hospital, Inpatient Unit, Samara State Medical University, Samara, Russia
Olga Izmailova
Affiliation:
Department of Psychiatry, Samara Psychiatric Hospital, Inpatient Unit, Samara State Medical University, Samara, Russia
Dusica Lecic-Tosevski
Affiliation:
Institute of Mental Health, Belgrade, Serbia Serbian Academy of Sciences and Arts, Belgrade, Serbia
Henk Temmingh
Affiliation:
Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
Fleur Howells
Affiliation:
Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
Julio Bobes
Affiliation:
Department of Psychiatry, University of Oviedo and Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Oviedo, Spain
Maria P. Garcia-Portilla
Affiliation:
Department of Psychiatry, University of Oviedo and Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Oviedo, Spain
Leticia García-Alvarez
Affiliation:
Department of Psychiatry, University of Oviedo and Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Oviedo, Spain
Gamze Erzin
Affiliation:
Psychiatry Department, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
Hasan Karadağ
Affiliation:
Psychiatry Department, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
Avinash De Sousa
Affiliation:
Department of Psychiatry, Lokmanya Tilak Municipal Medical College, Mumbai, India
Anuja Bendre
Affiliation:
Department of Psychiatry, Lokmanya Tilak Municipal Medical College, Mumbai, India
Cyril Hoschl
Affiliation:
National Institute of Mental Health, Klecany, Czech Republic
Cristina Bredicean
Affiliation:
University of Medicine and Pharmacy of Timisoara, Timisoara, Romania
Ion Papava
Affiliation:
University of Medicine and Pharmacy of Timisoara, Timisoara, Romania
Olivera Vukovic
Affiliation:
Institute of Mental Health, School of Medicine, University of Belgrade, Belgrade, Serbia
Bojana Pejuskovic
Affiliation:
Department of Psychiatry, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
Vincent Russell
Affiliation:
Department of Psychiatry, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
Loukas Athanasiadis
Affiliation:
1st Department of Psychiatry, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
Anastasia Konsta
Affiliation:
1st Department of Psychiatry, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
Dan Stein
Affiliation:
MRC Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
Michael Berk
Affiliation:
IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, Geelong, Australia Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Victoria, Australia Centre for Youth Mental Health, The Florey Institute for Neuroscience and Mental Health, Parkville, Victoria, Australia Department of Psychiatry, University of Melbourne, Parkville, Victoria, Australia
Olivia Dean
Affiliation:
IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, Geelong, Australia Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Victoria, Australia Centre for Youth Mental Health, The Florey Institute for Neuroscience and Mental Health, Parkville, Victoria, Australia Department of Psychiatry, University of Melbourne, Parkville, Victoria, Australia
Rajiv Tandon
Affiliation:
Department of Psychiatry, University of Florida, Gainesville, Florida, USA
Siegfried Kasper
Affiliation:
Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
Marc De Hert
Affiliation:
University Psychiatric Center, Katholieke Universiteit Leuven, Kortenberg, Belgium Department of Neurosciences, Katholieke Universiteit Leuven, Leuven, Belgium Antwerp Health Law and Ethics Chair—AHLEC University, Antwerpen, Belgium
Corresponding
E-mail address:

Abstract

Background.

The aim of the current study was to explore the changing interrelationships among clinical variables through the stages of schizophrenia in order to assemble a comprehensive and meaningful disease model.

Methods.

Twenty-nine centers from 25 countries participated and included 2358 patients aged 37.21 ± 11.87 years with schizophrenia. Multiple linear regression analysis and visual inspection of plots were performed.

Results.

The results suggest that with progression stages, there are changing correlations among Positive and Negative Syndrome Scale factors at each stage and each factor correlates with all the others in that particular stage, in which this factor is dominant. This internal structure further supports the validity of an already proposed four stages model, with positive symptoms dominating the first stage, excitement/hostility the second, depression the third, and neurocognitive decline the last stage.

Conclusions.

The current study investigated the mental organization and functioning in patients with schizophrenia in relation to different stages of illness progression. It revealed two distinct “cores” of schizophrenia, the “Positive” and the “Negative,” while neurocognitive decline escalates during the later stages. Future research should focus on the therapeutic implications of such a model. Stopping the progress of the illness could demand to stop the succession of stages. This could be achieved not only by both halting the triggering effect of positive and negative symptoms, but also by stopping the sensitization effect on the neural pathways responsible for the development of hostility, excitement, anxiety, and depression as well as the deleterious effect on neural networks responsible for neurocognition.

Type
Original Research
Copyright
© Cambridge University Press 2020

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