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Cited by 270

The DOI matches its Crossref record; 104 of the 104 references it cites were found in a registry or an index.

Genetic Risk and Outcome of Psychosis (GROUP), a multi site longitudinal cohort study focused on gene–environment interaction: objectives, sample characteristics, recruitment and assessment methods

Open access
Korver, Nikie, Quee, Piotr J., Boos, Heleen B. M., Simons, Claudia J. P., de Haan, Lieuwe, GROUP investigators·2012·International Journal of Methods in Psychiatric Research

Abstract

Objective: A longitudinal focus on gene–environment vulnerability and resilience in both patients, their unaffected family members and non‐related controls offers the opportunity to elucidate etiological and pathogenetic factors influencing the onset and course of psychotic disorders. The current paper delineates the objectives, sample characteristics, recruitment and assessment procedures of the Genetic Risk and Outcome of Psychoses (GROUP) study. Methods: A naturalistic longitudinal cohort study with assessments at baseline, after three and six years of follow‐up. The study is conducted by a consortium of four university psychiatric centres, with their affiliated mental health care institutions in the Netherlands covering more than 7.5 million inhabitants. Extensive assessment of genetic factors, environmental factors, (endo)phenotypes, and outcome. Results: At baseline, 1120 patients, 1057 siblings, 919 parents and 590 healthy controls were included. Conclusion: The GROUP study will contribute to insight in risk and protective factors in the aetiology of non‐affective psychotic disorders, and in the variation in their course and outcome. Copyright © 2012 John Wiley & Sons, Ltd.

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Metadata

Authors
Korver, N., Quee, P. J., Boos, H. B. M., Simons, C. J. P., de Haan, L., & GROUP investigators
Venue
International Journal of Methods in Psychiatric Research
Publisher
Wiley
Published
2012-03-15
Volume
21
Issue
3
Pages
205-221
ISSN
  • 1049-8931 (ISSN-L)
  • 1557-0657
OpenAlex
W1946774659
Cited by
270
References
104
FWCI
14.55
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Genetic Risk and Outcome of Psychosis (GROUP), a multi site longitudinal cohort study focused on gene–environment interaction: objectives, sample characteristics, recruitment and assessment methods. https://app.cochat.ai/papers/10.1002/mpr.1352
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Korver, N., Quee, P. J., Boos, H. B. M., Simons, C. J. P., de Haan, L., & GROUP investigators. (2012). Genetic Risk and Outcome of Psychosis (GROUP), a multi site longitudinal cohort study focused on gene–environment interaction: objectives, sample characteristics, recruitment and assessment methods. International Journal of Methods in Psychiatric Research. https://doi.org/10.1002/mpr.1352

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.