Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use

BackgroundThe resurgence of research and public interest in the positive psychological effects of psychedelics, together with advancements in digital data collection techniques, have brought forth a new type of research design, which involves prospectively gathering large-sca...

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Main Authors: Sebastian Hübner, Eline Haijen, Mendel Kaelen, Robin Lester Carhart-Harris, Hannes Kettner
Format: Article
Language:English
Published: JMIR Publications 2021-07-01
Series:Journal of Medical Internet Research
Online Access:https://www.jmir.org/2021/7/e25973
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author Sebastian Hübner
Eline Haijen
Mendel Kaelen
Robin Lester Carhart-Harris
Hannes Kettner
author_facet Sebastian Hübner
Eline Haijen
Mendel Kaelen
Robin Lester Carhart-Harris
Hannes Kettner
author_sort Sebastian Hübner
collection DOAJ
description BackgroundThe resurgence of research and public interest in the positive psychological effects of psychedelics, together with advancements in digital data collection techniques, have brought forth a new type of research design, which involves prospectively gathering large-scale naturalistic data from psychedelic users; that is, before and after the use of a psychedelic compound. A methodological limitation of such studies is their high attrition rate, particularly owing to participants who stop responding after initial study enrollment. Importantly, study dropout can introduce systematic biases that may affect the interpretability of results. ObjectiveBased on a previously collected sample (baseline n=654), here we investigated potential determinants of study attrition in web-based prospective studies on psychedelic use. MethodsLogistic regression models were used to examine demographic, psychological trait and state, and psychedelic-specific predictors of dropout. Predictors were assessed 1 week before, 1 day after, and 2 weeks after psychedelic use, with attrition being defined as noncompletion of the key endpoint 4 weeks post experience. ResultsPredictors of attrition were found among demographic variables including age (β=0.024; P=.007) and educational levels, as well as personality traits, specifically conscientiousness (β=–0.079; P=.02) and extraversion (β=0.082; P=.01). Contrary to prior hypotheses, neither baseline attitudes toward psychedelics nor the intensity of acute challenging experiences were predictive of dropout. ConclusionsThe baseline predictors of attrition identified here are consistent with those reported in longitudinal studies in other scientific disciplines, suggesting their transdisciplinary relevance. Moreover, the lack of an association between attrition and psychedelic advocacy or negative drug experiences in our sample contextualizes concerns about problematic biases in these and related data.
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spelling doaj.art-fa1fce0b443942c89c17d23ea8ad88492023-08-28T17:09:42ZengJMIR PublicationsJournal of Medical Internet Research1438-88712021-07-01237e2597310.2196/25973Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic UseSebastian Hübnerhttps://orcid.org/0000-0002-0791-5882Eline Haijenhttps://orcid.org/0000-0002-1110-1486Mendel Kaelenhttps://orcid.org/0000-0002-6987-9346Robin Lester Carhart-Harrishttps://orcid.org/0000-0002-6062-7150Hannes Kettnerhttps://orcid.org/0000-0001-9482-0998 BackgroundThe resurgence of research and public interest in the positive psychological effects of psychedelics, together with advancements in digital data collection techniques, have brought forth a new type of research design, which involves prospectively gathering large-scale naturalistic data from psychedelic users; that is, before and after the use of a psychedelic compound. A methodological limitation of such studies is their high attrition rate, particularly owing to participants who stop responding after initial study enrollment. Importantly, study dropout can introduce systematic biases that may affect the interpretability of results. ObjectiveBased on a previously collected sample (baseline n=654), here we investigated potential determinants of study attrition in web-based prospective studies on psychedelic use. MethodsLogistic regression models were used to examine demographic, psychological trait and state, and psychedelic-specific predictors of dropout. Predictors were assessed 1 week before, 1 day after, and 2 weeks after psychedelic use, with attrition being defined as noncompletion of the key endpoint 4 weeks post experience. ResultsPredictors of attrition were found among demographic variables including age (β=0.024; P=.007) and educational levels, as well as personality traits, specifically conscientiousness (β=–0.079; P=.02) and extraversion (β=0.082; P=.01). Contrary to prior hypotheses, neither baseline attitudes toward psychedelics nor the intensity of acute challenging experiences were predictive of dropout. ConclusionsThe baseline predictors of attrition identified here are consistent with those reported in longitudinal studies in other scientific disciplines, suggesting their transdisciplinary relevance. Moreover, the lack of an association between attrition and psychedelic advocacy or negative drug experiences in our sample contextualizes concerns about problematic biases in these and related data.https://www.jmir.org/2021/7/e25973
spellingShingle Sebastian Hübner
Eline Haijen
Mendel Kaelen
Robin Lester Carhart-Harris
Hannes Kettner
Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use
Journal of Medical Internet Research
title Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use
title_full Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use
title_fullStr Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use
title_full_unstemmed Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use
title_short Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use
title_sort turn on tune in and drop out predictors of attrition in a prospective observational cohort study on psychedelic use
url https://www.jmir.org/2021/7/e25973
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