Batink, T.

Jacobs, N.E.

Janssens, M.

Lataster, J.J.E.

Nijkamp, M.D.

Peeters, S.C.T.

Reijnders, J.S.A.M.

Simons, M.E.

English

Open University of the Netherlands Research Portal

Open Universiteit www.ou.nl Effectiveness of a preventive eHealth ACT module forpositive agingCitation for published version (APA):Reijnders, J. S. A. M., Batink, T., Simons, M. E., Nijkamp, M. D., Janssens, M., Lataster, J. J. E., Peeters, S. C.T., & Jacobs, N. E. (2023). Effectiveness of a preventive eHealth ACT module for positive aging: interventionstudy with middle-aged and older adults. Poster session presented at ACBS World Conference 2023, Nicosia,Cyprus.Document status and date:Published: 26/07/2023Document Version:Publisher's PDF, also known as Version of recordPlease check the document version of this publication:• A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences betweenthe submitted version and the official published version of record. People interested in the research are advised to contact the author for thefinal version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers.Link to publicationGeneral rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain• You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the “Taverne” license above, pleasefollow below link for the End User Agreement:https://www.ou.nl/taverne-agreementTake down policyIf you believe that this document breaches copyright please contact us at:pure-support@ou.nlproviding details and we will investigate your claim.Downloaded from https://research.ou.nl/ on date: 28 Oct. 2023INTROExperiential and behavioral avoidance have a negative impact on well-being, quality of life, and overall happiness. Positive aging involves maintaining adequate levels of well-being in older age, despite inevitable changes and challenges. This suggests that an ACT treatment model could potentially be effective with this population. Can psychological flexibility help dealing with these challenges and help preserve well-being?METHODSThe current study was a controlled longitudinal wait-list trial consisting of an 8-week stand-alone eHealth ACT module and an 8-week follow-up phase.More details regarding the intervention and its adherence:SampleA total of 955 healthy adults from the general Dutch population between 40 and 75 years old were included. Intention-to-treat analysis with a mixed 2 (group) x 2 (time) ANOVA was used including baseline scores (T1) and mental health (T1) as covariates. Outcome measures• Psychological flexibility: Flexibility Index test (FIT-60)• Experiential avoidance: Acceptance and Action Questionnaire (AAQ-II)• Psychological, emotional & social wellbeing: Mental Health Continuum (MHC-SF)• Basic psychological needs (autonomy, competence and relatedness): Basic Psychological Need Satisfaction and Frustration Scale (BPNSFS)• Psychological distress: Symptom Questionnaire (SQ-48)Additional results Baseline characteristics Per protocol analysis Selection criteria: completed 75-100% of the intervention(self-report): n=220 (compared to WLC n=299).Jennifer Reijnders, Tim Batink, Marianne Simons, Marjan Nijkamp, Mayke Janssens, Johan Lataster, Sanne Peeters & Nele JacobsDepartment of Lifespan psychology, Open University, the NetherlandsJennifer.Reijnders@ou.nlOutcome measure p-value Cohen’s dPsychological flexibility p < .001 1.06Experiential Avoidance p < .001 .09Psychological well-being p = .003 .26AutonomyCompetenceRelatednessp < .001p < .001p = .024.33.29.20Psychological distress DepressionAnxietySocial Phobiap = .018p = .040p = .037p = .013.25.41.39.23ACT  (n=571)(%)WLC (n=384)(%)p-valueAge (mean, SD) 54.1 (8.7)54.1(8.5)p=.982Gender (% female) 74 78 p=.287EducationLowIntermediateHigh5.619.4754.7 16.179.2p=.321Marital status Living togetherLiving apartSingle72.74.622.779  4.6 16.4p=.063Work situation FulltimePart-timeNot working/retired24 41.6 34.425.5 4925.5p=.057Physical health GoodNot good/not badBad59.622.917.566.9 21.4 11.7p=.092Mental health GoodNot good/ not badBad64.8 23.5 11.774.2 20.65.2p<.001DISCUSSIONThis study shows that a stand-alone eHealth ACT module could have benefits for the general aging population without specific complaints. The per protocol analysis signifies a meaningful effect size of the intervention on the primary outcome psychological flexibility. Furthermore, the eHealth module showed increased scores on autonomy, competence, and relatedness, which may promote positive aging. Attention should be directed to potential bias associated with non-adherence and maintaining the positive effects on the long-term.We are very grateful to Katleen Verdoodt, Eduard de Vries, Saskia Monna, Caroline van Genk, Astrid Lippolt, Josien Metske, and Jasper Tilburg for contributing to the data collection for this study. We are also grateful to eHealth provider Embloom to make the eHealth ACT module available for research.ACT WLC TotalT1 571 384 955T2 378 349 727T3 336 299 63523.9%12.7%Drop-outsRESULTSThere are small significant increases in the ACT-group (compared to the control group) directly after the intervention (T2) regarding the primary outcome measures:• Psychological flexibility (p<.001, Cohen's d=.33)• Experiential avoidance (p=.003, d=.23)*• Psychological well-being (p=.034, d=.17)  The ACT-group showed a greater satisfaction of the basic psychological needs compared to the WLC-group; Autonomy (p=.002, d=.25), Competence (p=.007, d=.21) and Relatedness (p=.025, d=.18). The positive effect stayed significant at follow up only for autonomy (T3; p=.031, d=.17). * Higher scores reflect more acceptance and flexibilityEffectiveness of a preventive eHealth ACT module for positive aging: intervention study with middle-aged and older adults3,533,613,693,66 3,673,723,843,863,853,894,124,174,24,21 4,20 03,43,53,63,73,83,944,14,24,3T1 T2 T3BPNSFSBasic psychological needs: Autonomy, Competence & RelatednessACT_Aut WLC _Aut ACT _Comp WLC_Comp ACT_Rel WLC_Rel

Effectiveness of a preventive eHealth ACT module for positive aging:intervention study with middle-aged and older adults

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Effectiveness of a preventive eHealth ACT module for positive aging:intervention study with middle-aged and older adults

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