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Loss to follow-up in longitudinal psychiatric research

  • Tilly Eichler (a1), Matthias Schützwohl (a1), Stefan Priebe (a2), Donna Wright (a2), Tomasz Adamowski (a3), Joanna Rymaszewska (a3), Petr Nawka (a4), Ladislav Ocvár (a4), Eva Kitzlerova (a5), Jiri Raboch (a5) and Thomas W. Kallert (a1)...

Summary

Aims – To analyse factors that differentiate patients who attend follow-up assessments versus those who do not, and to identify predictors for drop-out within the context of the European Day Hospital Evaluation Study (EDEN-Study). Methods – The EDEN-Study, a multi-center RCT comparing acute psychiatric day care with inpatient care, required re-assessment of patients at discharge, 3 and 12 months after discharge. Follow-up rates varied between 54.0% and 99.5%. Socio-demographic and clinical characteristics of patients who did and did not attend follow-up were analysed using uni- and multivariate statistical methods. Results – Univariate analyses showed differences between patients regarding study site, treatment setting, living situation, employment, age, psychopathological symptoms and treatment satisfaction. They were not confirmed in multivariate analyses thus meaningful predictors of drop-out could not be identified. Conclusions – Results emphasize the general need to compare patients re-assessed and not re-assessed in terms of their most relevant socio-demographic and clinical variables to assess the generalizability of results.

Declaration of Interest: EDEN (Psychiatric day hospital treatment: An alternative to inpatient treatment, being cost-effective and minimizing post-treatment needs for care? An evaluative study in European countries with different care systems) was funded by the European Commission (Quality of Life and Management of Living Resources Programme: QLG4-CT-2000-01700). Additional national grants supporting the project were provided by Roland-Ernst-Stiftung für Gesundheitswesen and the Faculty of Medicine at the Dresden University of Technology, the National Health Service Executive Organization and Management Programme, the Polish National Committee of Scientific Affairs, and the Slovak Ministry of Education. Pfizer Pharmaceutical Company supported travel and accommodation for EDEN project meetings.

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Corresponding author

Address tor correspondence: T. Eichler, Dresden University of Technology, Institute for Psychology and Psychotherapy, Chemnitzer Str. 46, 01187 Dresden, (Germany). E-mail: eichler@psychologie.tu-dresden.de

References

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