Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studies

Summary Sex differences in symptomatology in people with psychosis have been studied extensively in recent decades. Although studies have pointed to such differences, to date there is no review that has performed a systematic search and quantitative synthesis. In this paper, we describe the protocol...

Full description

Bibliographic Details
Main Authors: Marta Ferrer-Quintero, Marina Verdaguer-Rodriguez, Marina Esteban Sanjusto, Clara Serra-Arumí, Judith Usall, Susana Ochoa, Irene Bighelli, Helena García-Mieres
Format: Article
Language:English
Published: Cambridge University Press 2022-11-01
Series:BJPsych Open
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2056472422005968/type/journal_article
_version_ 1811156837979914240
author Marta Ferrer-Quintero
Marina Verdaguer-Rodriguez
Marina Esteban Sanjusto
Clara Serra-Arumí
Judith Usall
Susana Ochoa
Irene Bighelli
Helena García-Mieres
author_facet Marta Ferrer-Quintero
Marina Verdaguer-Rodriguez
Marina Esteban Sanjusto
Clara Serra-Arumí
Judith Usall
Susana Ochoa
Irene Bighelli
Helena García-Mieres
author_sort Marta Ferrer-Quintero
collection DOAJ
description Summary Sex differences in symptomatology in people with psychosis have been studied extensively in recent decades. Although studies have pointed to such differences, to date there is no review that has performed a systematic search and quantitative synthesis. In this paper, we describe the protocol for a pairwise meta-analysis comparing a range of symptom outcome measures between men and women diagnosed with a psychotic spectrum disorder at different stages of the disorder (PROSPERO registration number CRD42021264942). In August 2021 we conducted systematic searches of PsychInfo, PubMed, Web of Science, Scopus and Dialnet to identify observational studies that report data on symptoms for males and females separately. Two independent reviewers will conduct literature searches, select studies, extract data, assess the risk of bias and assess outcome quality. To assess the effect size of all outcome measures, we will conduct pairwise meta-analysis using random-effects models. The quality of studies will be evaluated using a National Heart, Lung and Blood Institute's quality assessment tool and the confidence in the results will be evaluated using the GRADE tool. Meta-regression and sensitivity analyses will be conducted to assess the robustness of the findings. No ethical problems are foreseen. Results from this study will be published in peer-reviewed journals and presented at relevant conferences.
first_indexed 2024-04-10T04:57:45Z
format Article
id doaj.art-288df9443e784e6786ad8b5ed0e03103
institution Directory Open Access Journal
issn 2056-4724
language English
last_indexed 2024-04-10T04:57:45Z
publishDate 2022-11-01
publisher Cambridge University Press
record_format Article
series BJPsych Open
spelling doaj.art-288df9443e784e6786ad8b5ed0e031032023-03-09T12:29:24ZengCambridge University PressBJPsych Open2056-47242022-11-01810.1192/bjo.2022.596Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studiesMarta Ferrer-Quintero0Marina Verdaguer-Rodriguez1Marina Esteban Sanjusto2Clara Serra-Arumí3Judith Usall4Susana Ochoa5Irene Bighelli6Helena García-Mieres7https://orcid.org/0000-0002-2813-1737Institut de Recerca Sant Joan de Déu, Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain; and Departament de Psicología Social i Quantitativa, Universitat de Barcelona, SpainInstitut de Recerca Sant Joan de Déu, Barcelona, SpainInstitut de Recerca Sant Joan de Déu, Barcelona, SpainInstitut de Recerca Sant Joan de Déu, Barcelona, SpainInstitut de Recerca Sant Joan de Déu, Barcelona, SpainInstitut de Recerca Sant Joan de Déu, Barcelona, Spain; and Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, SpainDepartment of Psychiatry and Psychotherapy, School of Medicine, Technical University of Munich, GermanyInstitut de Recerca Sant Joan de Déu, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Health Services Research Unit, Institut Hospital del Mar de Investigacions Médiques (IMIM), Barcelona, Spain; and Department of Medicine and Health Sciences, Universitat Pompeu Fabra, Barcelona, SpainSummary Sex differences in symptomatology in people with psychosis have been studied extensively in recent decades. Although studies have pointed to such differences, to date there is no review that has performed a systematic search and quantitative synthesis. In this paper, we describe the protocol for a pairwise meta-analysis comparing a range of symptom outcome measures between men and women diagnosed with a psychotic spectrum disorder at different stages of the disorder (PROSPERO registration number CRD42021264942). In August 2021 we conducted systematic searches of PsychInfo, PubMed, Web of Science, Scopus and Dialnet to identify observational studies that report data on symptoms for males and females separately. Two independent reviewers will conduct literature searches, select studies, extract data, assess the risk of bias and assess outcome quality. To assess the effect size of all outcome measures, we will conduct pairwise meta-analysis using random-effects models. The quality of studies will be evaluated using a National Heart, Lung and Blood Institute's quality assessment tool and the confidence in the results will be evaluated using the GRADE tool. Meta-regression and sensitivity analyses will be conducted to assess the robustness of the findings. No ethical problems are foreseen. Results from this study will be published in peer-reviewed journals and presented at relevant conferences. https://www.cambridge.org/core/product/identifier/S2056472422005968/type/journal_articleSex differencesschizophreniafirst-episode psychosisultra-high risk for psychosissymptoms
spellingShingle Marta Ferrer-Quintero
Marina Verdaguer-Rodriguez
Marina Esteban Sanjusto
Clara Serra-Arumí
Judith Usall
Susana Ochoa
Irene Bighelli
Helena García-Mieres
Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studies
BJPsych Open
Sex differences
schizophrenia
first-episode psychosis
ultra-high risk for psychosis
symptoms
title Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studies
title_full Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studies
title_fullStr Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studies
title_full_unstemmed Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studies
title_short Sex differences in symptomatology in people with schizophrenia and other psychotic disorders: protocol for a systematic review and pairwise meta-analysis of observational studies
title_sort sex differences in symptomatology in people with schizophrenia and other psychotic disorders protocol for a systematic review and pairwise meta analysis of observational studies
topic Sex differences
schizophrenia
first-episode psychosis
ultra-high risk for psychosis
symptoms
url https://www.cambridge.org/core/product/identifier/S2056472422005968/type/journal_article
work_keys_str_mv AT martaferrerquintero sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies
AT marinaverdaguerrodriguez sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies
AT marinaestebansanjusto sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies
AT claraserraarumi sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies
AT judithusall sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies
AT susanaochoa sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies
AT irenebighelli sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies
AT helenagarciamieres sexdifferencesinsymptomatologyinpeoplewithschizophreniaandotherpsychoticdisordersprotocolforasystematicreviewandpairwisemetaanalysisofobservationalstudies