Publications in collaboration with researchers from Maastricht University Medical Centre (25)

2025

  1. Cannabis Use Cessation and the Risk of Psychotic Disorders: A Case–Control Analysis from the First Episode Case–Control EU-GEI WP2 Study: L’arrêt de l’utilisation du cannabis et le risque de troubles psychotiques: Une analyse cas-témoins tirée de l’étude cas-témoins EU-GEI WP2 centrée sur les premiers épisodes psychotiques

    Canadian Journal of Psychiatry, Vol. 70, Núm. 3, pp. 182-193

  2. Cognitive presentation at psychosis onset through premorbid deterioration and exposure to environmental risk factors

    Psychological Medicine, Vol. 55

  3. Methylomic signature of current cannabis use in two first-episode psychosis cohorts

    Molecular Psychiatry, Vol. 30, Núm. 4, pp. 1277-1286

  4. Treatment and long-term outcome of mental disorders: The grim picture from a quasi-epidemiological investigation in 54,826 subjects from 40 countries

    Psychiatry Research, Vol. 348

  5. Variation of subclinical psychosis as a function of population density across different European settings: Findings from the multi-national EU-GEI study

    Acta Psychiatrica Scandinavica, Vol. 151, Núm. 4, pp. 506-520

2024

  1. Cannabis use and cognitive biases in people with first-episode psychosis and their siblings

    Psychological Medicine

  2. Non-binary gender, vulnerable populations and mental health during the COVID-19 pandemic: Data from the COVID-19 MEntal health inTernational for the general population (COMET-G) study

    Journal of Affective Disorders, Vol. 352, pp. 536-551

  3. Self-reported suicidal ideation among individuals with first episode psychosis and healthy controls: Findings from the international multicentre EU-GEI study

    Schizophrenia Research, Vol. 270, pp. 339-348

  4. Somatic multicomorbidity and disability in patients with psychiatric disorders in comparison to the general population: a quasi-epidemiological investigation in 54,826 subjects from 40 countries (COMET-G study)

    CNS Spectrums, Vol. 29, Núm. 2, pp. 126-149

  5. The Role of Social Deprivation and Cannabis Use in Explaining Variation in the Incidence of Psychotic Disorders: Findings From the EU-GEI Study

    Schizophrenia Bulletin, Vol. 50, Núm. 5, pp. 1039-1049

  6. The effect of polygenic risk score and childhood adversity on transdiagnostic symptom dimensions at first-episode psychosis: evidence for an affective pathway to psychosis

    Translational Psychiatry, Vol. 14, Núm. 1

  7. The impact of schizophrenia genetic load and heavy cannabis use on the risk of psychotic disorder in the EU-GEI case-control and UK Biobank studies

    Psychological Medicine

  8. Variation of subclinical psychosis across 16 sites in Europe and Brazil: findings from the multi-national EU-GEI study

    Psychological medicine, Vol. 54, Núm. 8, pp. 1810-1823

2023

  1. Synergistic effects of childhood adversity and polygenic risk in first-episode psychosis: The EU-GEI study

    Psychological Medicine, Vol. 53, Núm. 5, pp. 1970-1978

2022

  1. Genetic and psychosocial stressors have independent effects on the level of subclinical psychosis: findings from the multinational EU-GEI study

    Epidemiology and psychiatric sciences, Vol. 31, pp. e68

  2. Results of the COVID-19 mental health international for the general population (COMET-G) study

    European Neuropsychopharmacology, Vol. 54, pp. 21-40

  3. The effect of different degrees of lockdown and self-identified gender on anxiety, depression and suicidality during the COVID-19 pandemic: Data from the international COMET-G study.

    Psychiatry Research, Vol. 315

2021

  1. Examining the association between exposome score for schizophrenia and functioning in schizophrenia, siblings, and healthy controls: Results from the EUGEI study

    European psychiatry : the journal of the Association of European Psychiatrists, Vol. 64, Núm. 1, pp. e25

  2. The Independent Effects of Psychosocial Stressors on Subclinical Psychosis: Findings from the Multinational EU-GEI Study

    Schizophrenia Bulletin, Vol. 47, Núm. 6, pp. 1674-1684

2020

  1. Replicated evidence that endophenotypic expression of schizophrenia polygenic risk is greater in healthy siblings of patients compared to controls, suggesting gene-environment interaction. The EUGEI study

    Psychological Medicine, Vol. 50, Núm. 11, pp. 1884-1897