Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men

Background Chemsex poses growing psychological and behavioural risks among men who have sex with men (MSM). Although the Chemsex Inventory (CSI) was developed to assess these risks, clinical cutoff points distinguishing recreational use from pathological patterns remain undefined. This study aimed t...

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Autores: Del Pozo-Herce, P, Martínez-Sabater, A, Chover-Sierra, EE, Czapla, M, Hernado, BS, Navas-Echazarreta, N, Juárez-Vela, R
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:INCLIVA
Repositorio:r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA
OAI Identifier:oai:dnet:incliva_____::8586d112e456d977cbda184694913ec7
Acceso en línea:https://incliva.portalinvestigacion.com/publicaciones/20814
Access Level:acceso abierto
Palabra clave:Chemsex
Cutoff scores
Psychometrics
Mental health
Men who have sex with men
Statistical Analysis
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spelling Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with MenDel Pozo-Herce, PMartínez-Sabater, AChover-Sierra, EECzapla, MHernado, BSNavas-Echazarreta, NJuárez-Vela, RChemsexCutoff scoresPsychometricsMental healthMen who have sex with menStatistical AnalysisBackground Chemsex poses growing psychological and behavioural risks among men who have sex with men (MSM). Although the Chemsex Inventory (CSI) was developed to assess these risks, clinical cutoff points distinguishing recreational use from pathological patterns remain undefined. This study aimed to determine optimal CSI cutoff points to identify profiles of increased psychological and behavioral vulnerability associated with chemsex. Methods A cross-sectional study was conducted in Spain between January and April 2023 with 563 MSM who reported chemsex use within the previous 12 months. Psychometric analyses included principal component analysis (PCA) and confirmatory factor analysis (CFA) of a second-order model with four dimensions: emotional instability, risk of psychosis, altered body perception, and suicide risk. Cutoff points were determined using the percentile-based P-score method. Results The CSI showed excellent internal reliability (Cronbach's alpha = 0.88; omega = 0.88) and strong factorial validity (CFI = 0.985, TLI = 0.984, RMSEA = 0.05). The second-order model fit significantly better than the first-order alternative (chi & sup2;diff = 8.14; p = 0.017). High-risk cutoffs were: emotional instability >= 78.3, psychosis >= 51.4, body-perception disturbance >= 95.0, suicide risk >= 75.0, and global >= 66.4. About 5% of participants exceeded these thresholds, indicating elevated psychological vulnerability. Conclusions CSI cutoff points provide a reliable and sensitive tool for early detection of mental-health risks related to chemsex. Policy Implications Incorporating the CSI into sexual-health, primary-care, and mental-health services may enhance early detection of at-risk individuals and support evidence-based prevention and harm-reduction strategies.SPRINGER2026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://incliva.portalinvestigacion.com/publicaciones/20814Sexuality Research and Social PolicyISSN: 18689884ISSNe: 15536610reponame:r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVAinstname:INCLIVAInglésinfo:eu-repo/semantics/openAccessoai:dnet:incliva_____::8586d112e456d977cbda184694913ec72026-06-07T16:35:31Z
dc.title.none.fl_str_mv Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
title Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
spellingShingle Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
Del Pozo-Herce, P
Chemsex
Cutoff scores
Psychometrics
Mental health
Men who have sex with men
Statistical Analysis
title_short Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
title_full Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
title_fullStr Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
title_full_unstemmed Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
title_sort Determination of the Optimal Cutoff Point for the ChemSex Inventory (CSI) to Assess Chemsex-Related Mental Health Risk in Men Who Have Sex with Men
dc.creator.none.fl_str_mv Del Pozo-Herce, P
Martínez-Sabater, A
Chover-Sierra, EE
Czapla, M
Hernado, BS
Navas-Echazarreta, N
Juárez-Vela, R
author Del Pozo-Herce, P
author_facet Del Pozo-Herce, P
Martínez-Sabater, A
Chover-Sierra, EE
Czapla, M
Hernado, BS
Navas-Echazarreta, N
Juárez-Vela, R
author_role author
author2 Martínez-Sabater, A
Chover-Sierra, EE
Czapla, M
Hernado, BS
Navas-Echazarreta, N
Juárez-Vela, R
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Chemsex
Cutoff scores
Psychometrics
Mental health
Men who have sex with men
Statistical Analysis
topic Chemsex
Cutoff scores
Psychometrics
Mental health
Men who have sex with men
Statistical Analysis
description Background Chemsex poses growing psychological and behavioural risks among men who have sex with men (MSM). Although the Chemsex Inventory (CSI) was developed to assess these risks, clinical cutoff points distinguishing recreational use from pathological patterns remain undefined. This study aimed to determine optimal CSI cutoff points to identify profiles of increased psychological and behavioral vulnerability associated with chemsex. Methods A cross-sectional study was conducted in Spain between January and April 2023 with 563 MSM who reported chemsex use within the previous 12 months. Psychometric analyses included principal component analysis (PCA) and confirmatory factor analysis (CFA) of a second-order model with four dimensions: emotional instability, risk of psychosis, altered body perception, and suicide risk. Cutoff points were determined using the percentile-based P-score method. Results The CSI showed excellent internal reliability (Cronbach's alpha = 0.88; omega = 0.88) and strong factorial validity (CFI = 0.985, TLI = 0.984, RMSEA = 0.05). The second-order model fit significantly better than the first-order alternative (chi & sup2;diff = 8.14; p = 0.017). High-risk cutoffs were: emotional instability >= 78.3, psychosis >= 51.4, body-perception disturbance >= 95.0, suicide risk >= 75.0, and global >= 66.4. About 5% of participants exceeded these thresholds, indicating elevated psychological vulnerability. Conclusions CSI cutoff points provide a reliable and sensitive tool for early detection of mental-health risks related to chemsex. Policy Implications Incorporating the CSI into sexual-health, primary-care, and mental-health services may enhance early detection of at-risk individuals and support evidence-based prevention and harm-reduction strategies.
publishDate 2026
dc.date.none.fl_str_mv 2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://incliva.portalinvestigacion.com/publicaciones/20814
url https://incliva.portalinvestigacion.com/publicaciones/20814
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv SPRINGER
publisher.none.fl_str_mv SPRINGER
dc.source.none.fl_str_mv Sexuality Research and Social Policy
ISSN: 18689884
ISSNe: 15536610
reponame:r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA
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