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12.04.2022 | Psychiatrics • Original Article

Predictors of dropout in university students participating in an 8-week e-mail-based cognitive-behavioral therapy for insomnia intervention

verfasst von: Hyojin Nam, Jinyoung Chang, Mickey Trockel, Isa Okajima, Chien-Ming Yang, Ngan Yin Chan, Shirley Li, Sooyeon Suh

Erschienen in: Sleep and Breathing | Ausgabe 1/2023

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Abstract

Purpose

We conducted an exploratory study to identify risk factors of dropout in an 8-week e-mail-based cognitive-behavioral therapy for insomnia (REFRESH) to improve sleep among university students with insomnia symptoms.

Methods

University and graduate students in Hong Kong and Korea who scored higher than 10 on the Insomnia Severity Index participated in REFRESH.

Results

Of 158 participants from Hong Kong (n = 43) and Korea (n = 115), 90 (57%) did not complete all 7 sessions, while 52 of 90 (57.8%) dropped out prior to the fourth session. ROC analysis was conducted on the entire sample of 158 participants with intervention completion vs. dropout (non-completion) as the outcome variable. Predictors of dropout were wake time after sleep onset (WASO) < 7.1 min on the weekly sleep diary and expectations for sleep (a subscale of dysfunctional beliefs and attitudes about sleep; DBAS) < 18 at baseline.

Conclusions

These findings indicate that shorter WASO and less expectations for sleep at baseline were associated with risk of dropout from e-mail delivered self-help CBT-I-based intervention. Our results highlight the importance of identifying and tailoring treatment formats to students based on their presenting sleep characteristics.

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Titel: Predictors of dropout in university students participating in an 8-week e-mail-based cognitive-behavioral therapy for insomnia intervention
verfasst von: Hyojin Nam
Jinyoung Chang
Mickey Trockel
Isa Okajima
Chien-Ming Yang
Ngan Yin Chan
Shirley Li
Sooyeon Suh
Publikationsdatum: 12.04.2022
Verlag: Springer International Publishing
Erschienen in: Sleep and Breathing / Ausgabe 1/2023
Print ISSN: 1520-9512
Elektronische ISSN: 1522-1709
DOI: https://doi.org/10.1007/s11325-022-02609-y

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Predictors of dropout in university students participating in an 8-week e-mail-based cognitive-behavioral therapy for insomnia intervention