Skip to main content
Top
Published in: BMC Public Health 1/2024

Open Access 01-12-2024 | Study Protocol

Nature-based social interventions to address loneliness among vulnerable populations: a common study protocol for three related randomized controlled trials in Barcelona, Helsinki, and Prague within the RECETAS European project

Authors: Laura Coll-Planas, Aina Carbó-Cardeña, Anu Jansson, Vladimira Dostálová, Alzbeta Bartova, Laura Rautiainen, Annika Kolster, Montse Masó-Aguado, Laia Briones-Buixassa, Sergi Blancafort-Alias, Marta Roqué-Figuls, Ashby Lavelle Sachs, Cristina Casajuana, Uwe Siebert, Ursula Rochau, Sibylle Puntscher, Iva Holmerová, Kaisu H. Pitkala, Jill S. Litt

Published in: BMC Public Health | Issue 1/2024

Login to get access

Abstract

Background

The negative effects of loneliness on population health and wellbeing requires interventions that transcend the medical system and leverage social, cultural, and public health system resources. Group-based social interventions are a potential method to alleviate loneliness. Moreover, nature, as part of our social and health infrastructure, may be an important part of the solutions that are needed to address loneliness. The RECETAS European project H2020 (Re-imagining Environments for Connection and Engagement: Testing Actions for Social Prescribing in Natural Spaces) is an international research project aiming to develop and test the effectiveness of nature-based social interventions to reduce loneliness and increase health-related quality of life.

Methods

This article describes the three related randomized controlled trials (RCTs) that will be implemented: the RECETAS-BCN Trial in Barcelona (Spain) is targeting people 18+ from low socio-economic urban areas; the RECETAS-PRG Trial in Prague (Czech Republic) is addressing community-dwelling older adults over 60 years of age, and the RECETAS-HLSNK trial is reaching older people in assisted living facilities. Each trial will recruit 316 adults suffering from loneliness at least sometimes and randomize them to nature-based social interventions called “Friends in Nature” or to the control group. “Friends in Nature” uses modifications of the “Circle of Friends” methodology based on group processes of peer support and empowerment but including activities in nature. Participants will be assessed at baseline, at post-intervention (3 months), and at 6- and 12-month follow-up after baseline. Primary outcomes are the health-related quality-of-life according to 15D measure and The De Jong Gierveld 11-item loneliness scale. Secondary outcomes are health and psychosocial variables tailored to the specific target population. Nature exposure will be collected throughout the intervention period. Process evaluation will explore context, implementation, and mechanism of impact. Additionally, health economic evaluations will be performed.

Discussion

The three RECETAS trials will explore the effectiveness of nature-based social interventions among lonely people from various ages, social, economic, and cultural backgrounds. RECETAS meets the growing need of solid evidence for programs addressing loneliness by harnessing the beneficial impact of nature on enhancing wellbeing and social connections.

Trial registration

Barcelona (Spain) trial: ClinicalTrials.gov, ID: NCT05488496. Registered 29 July 2022.
Prague (Czech Republic) trial: ClinicalTrials.gov, ID: NCT05522140. Registered August 25, 2022.
Helsinki (Finland) trial: ClinicalTrials.gov, ID: NCT05507684. Registered August 12, 2022.
Appendix
Available only for authorised users
Literature
1.
go back to reference Victor C, Smith K. Interest group session—loneliness and social isolation: the language(s) of loneliness. Innov Aging. 2019;3(Supplement_1):S373.PubMedCentral Victor C, Smith K. Interest group session—loneliness and social isolation: the language(s) of loneliness. Innov Aging. 2019;3(Supplement_1):S373.PubMedCentral
2.
go back to reference Cacioppo S, Grippo AJ, London S, Goossens L, Cacioppo JT. Loneliness: clinical import and interventions. Perspect Psychol Sci. 2015;10(2):238–49. Cacioppo S, Grippo AJ, London S, Goossens L, Cacioppo JT. Loneliness: clinical import and interventions. Perspect Psychol Sci. 2015;10(2):238–49.
5.
go back to reference Luanaigh CÓ, Lawlor BA. Loneliness and the health of older people. Int J Geriatr Psychiat. 2008;23(12):1213–21.CrossRef Luanaigh CÓ, Lawlor BA. Loneliness and the health of older people. Int J Geriatr Psychiat. 2008;23(12):1213–21.CrossRef
7.
go back to reference Tilvis RS, Jolkkonen KPJ, Strandberg TE. Social networks and dementia. Lancet. 2000;356(9223):77–8.CrossRefPubMed Tilvis RS, Jolkkonen KPJ, Strandberg TE. Social networks and dementia. Lancet. 2000;356(9223):77–8.CrossRefPubMed
8.
go back to reference Fung YDS, Chi LPW, RSY L, Kee F, Chiu A, Wu W. Effects of non-pharmacological interventions on loneliness among community-dwelling older adults: A systematic review, network meta-analysis, and meta-regression. Int J Nurs Stud. 2023;144:104524.CrossRef Fung YDS, Chi LPW, RSY L, Kee F, Chiu A, Wu W. Effects of non-pharmacological interventions on loneliness among community-dwelling older adults: A systematic review, network meta-analysis, and meta-regression. Int J Nurs Stud. 2023;144:104524.CrossRef
9.
go back to reference Masi CM, Chen HY, Hawkley LC, Cacioppo JT. A meta-analysis of interventions to reduce loneliness. Pers Soc Psychol Rev. 2011;15(3):219–66. Masi CM, Chen HY, Hawkley LC, Cacioppo JT. A meta-analysis of interventions to reduce loneliness. Pers Soc Psychol Rev. 2011;15(3):219–66.
10.
go back to reference Fakoya OA, McCorry NK, Donnelly M. Loneliness and social isolation interventions for older adults: a scoping review of reviews. BMC Public Health. 2020;20:129.CrossRefPubMedPubMedCentral Fakoya OA, McCorry NK, Donnelly M. Loneliness and social isolation interventions for older adults: a scoping review of reviews. BMC Public Health. 2020;20:129.CrossRefPubMedPubMedCentral
11.
go back to reference Jansson A, Pitkälä KH. Circle of friends, an encouraging intervention for alleviating loneliness. J Nutr Health Aging. 2021;25(6):714–5. Jansson A, Pitkälä KH. Circle of friends, an encouraging intervention for alleviating loneliness. J Nutr Health Aging. 2021;25(6):714–5.
12.
go back to reference Pitkala KH, Routasalo P, Kautiainen H, Tilvis RS. Effects of psychosocial group rehabilitation on health, use of health care services, and mortality of older persons suffering from loneliness: a randomized, controlled trial. J Gerontol A Biol Sci Med Sci. 2009;64(7):792–800.CrossRefPubMed Pitkala KH, Routasalo P, Kautiainen H, Tilvis RS. Effects of psychosocial group rehabilitation on health, use of health care services, and mortality of older persons suffering from loneliness: a randomized, controlled trial. J Gerontol A Biol Sci Med Sci. 2009;64(7):792–800.CrossRefPubMed
13.
go back to reference Savikko N, Routasalo P, Tilvis R, Pitkälä K. Psychosocial group rehabilitation for lonely older people: favourable processes and mediating factors of the intervention leading to alleviated loneliness. Int J Older People Nursing. 2010;5(1):16–24.CrossRef Savikko N, Routasalo P, Tilvis R, Pitkälä K. Psychosocial group rehabilitation for lonely older people: favourable processes and mediating factors of the intervention leading to alleviated loneliness. Int J Older People Nursing. 2010;5(1):16–24.CrossRef
14.
go back to reference Pitkälä KH, Savikko N, Routasalo P. Group dynamics in older people’s closed groups: findings from finnish psychosocial group rehabilitation for lonely older people. Group Therapy. Nova Science Publishers; 2014. p. 39–74. Pitkälä KH, Savikko N, Routasalo P. Group dynamics in older people’s closed groups: findings from finnish psychosocial group rehabilitation for lonely older people. Group Therapy. Nova Science Publishers; 2014. p. 39–74.
15.
go back to reference Hale J, Knapp C, Bardwell L, Buchenau M, Marshall J, Sancar F, et al. Connecting food environments and health through the relational nature of aesthetics: Gaining insight through the community gardening experience. Soc Sci Med. 2011;72(11):1853–63.CrossRefPubMedPubMedCentral Hale J, Knapp C, Bardwell L, Buchenau M, Marshall J, Sancar F, et al. Connecting food environments and health through the relational nature of aesthetics: Gaining insight through the community gardening experience. Soc Sci Med. 2011;72(11):1853–63.CrossRefPubMedPubMedCentral
16.
go back to reference Litt J, Schmiege S, Hale J, Buchenau M, Sancar F. Exploring ecological, emotional and social levers of self-rated health for urban gardeners and non-gardeners: a path analysis. Soc Sci Med. 1982;144:1–8.CrossRef Litt J, Schmiege S, Hale J, Buchenau M, Sancar F. Exploring ecological, emotional and social levers of self-rated health for urban gardeners and non-gardeners: a path analysis. Soc Sci Med. 1982;144:1–8.CrossRef
17.
go back to reference Leavell MA, Leiferman JA, Gascon M, Braddick F, Gonzalez JC, Litt JS. Nature-Based Social Prescribing in Urban Settings to Improve Social Connectedness and Mental Well-being: a Review. Curr Environ Health Rep. 2019;6(4):297–308.CrossRefPubMed Leavell MA, Leiferman JA, Gascon M, Braddick F, Gonzalez JC, Litt JS. Nature-Based Social Prescribing in Urban Settings to Improve Social Connectedness and Mental Well-being: a Review. Curr Environ Health Rep. 2019;6(4):297–308.CrossRefPubMed
18.
go back to reference Marselle MR, Hartig T, Cox DTC, de Bell S, Knapp S, Lindley S, et al. Pathways linking biodiversity to human health: A conceptual framework. Environ Int. 2021;150:106420.CrossRefPubMed Marselle MR, Hartig T, Cox DTC, de Bell S, Knapp S, Lindley S, et al. Pathways linking biodiversity to human health: A conceptual framework. Environ Int. 2021;150:106420.CrossRefPubMed
19.
go back to reference Cameron RWF, Brindley P, Mears M, McEwan K, Ferguson F, Sheffield D, et al. Where the wild things are! Do urban green spaces with greater avian biodiversity promote more positive emotions in humans? Urban Ecosyst. 2020;23(2):301–17.CrossRef Cameron RWF, Brindley P, Mears M, McEwan K, Ferguson F, Sheffield D, et al. Where the wild things are! Do urban green spaces with greater avian biodiversity promote more positive emotions in humans? Urban Ecosyst. 2020;23(2):301–17.CrossRef
20.
go back to reference Franco LS, Shanahan DF, Fuller RA. A review of the benefits of nature experiences: more than meets the eye. Int J Environ Res Public Health. 2017;14(8):864.CrossRefPubMedPubMedCentral Franco LS, Shanahan DF, Fuller RA. A review of the benefits of nature experiences: more than meets the eye. Int J Environ Res Public Health. 2017;14(8):864.CrossRefPubMedPubMedCentral
21.
go back to reference Litt JS, Alaimo K, Harrall KK, Hamman RF, Hébert JR, Hurley TG, et al. Effects of a community gardening intervention on diet, physical activity, and anthropometry outcomes in the USA (CAPS): an observer-blind, randomised controlled trial. Lancet Planet Health. 2023;7(1):e23–32.CrossRefPubMedPubMedCentral Litt JS, Alaimo K, Harrall KK, Hamman RF, Hébert JR, Hurley TG, et al. Effects of a community gardening intervention on diet, physical activity, and anthropometry outcomes in the USA (CAPS): an observer-blind, randomised controlled trial. Lancet Planet Health. 2023;7(1):e23–32.CrossRefPubMedPubMedCentral
22.
go back to reference Sachs A, Tharrey M, Darmon N, Alaimo K, Boshara A, Beavers A, et al. “To me, it’s just natural to be in the garden”: A multi-site investigation of new community gardener motivation using Self-Determination Theory. Wellbeing Space Soc. 2022;3:100088.CrossRef Sachs A, Tharrey M, Darmon N, Alaimo K, Boshara A, Beavers A, et al. “To me, it’s just natural to be in the garden”: A multi-site investigation of new community gardener motivation using Self-Determination Theory. Wellbeing Space Soc. 2022;3:100088.CrossRef
23.
go back to reference Astell-Burt T, Hartig T, Eckermann S, Nieuwenhuijsen M, McMunn A, Frumkin H, et al. More green, less lonely? A longitudinal cohort study. Int J Epidemiol. 2022;51(1):99–110.CrossRefPubMed Astell-Burt T, Hartig T, Eckermann S, Nieuwenhuijsen M, McMunn A, Frumkin H, et al. More green, less lonely? A longitudinal cohort study. Int J Epidemiol. 2022;51(1):99–110.CrossRefPubMed
24.
go back to reference Astell-Burt T, Hartig T, Putra IGNE, Walsan R, Dendup T, Feng X. Green space and loneliness: A systematic review with theoretical and methodological guidance for future research. Sci Total Environ. 2022;847:157521.CrossRefPubMed Astell-Burt T, Hartig T, Putra IGNE, Walsan R, Dendup T, Feng X. Green space and loneliness: A systematic review with theoretical and methodological guidance for future research. Sci Total Environ. 2022;847:157521.CrossRefPubMed
25.
go back to reference Litt JS, Coll-Planas L, Sachs A, Rochau U, Beacom A, Jansson A, Garcia-Velez G, Dostalova V, Bekessy S, Blancafort-Alias S, Hill N, Gascon M, Roque-Figuls M, Bartova A, Daher C, Kolarova I, Cucchiaro A, Colom J, Gentile S, Homerova I, Johnson K, Kimberlee R, Siebert U, Varda D, Pitkala KH. RECETAS: Rationale and logic model of a nature-based social intervention for people experiencing loneliness, Cities & Health. 2023. https://doi.org/10.1080/23748834.2023.2300207. Litt JS, Coll-Planas L, Sachs A, Rochau U, Beacom A, Jansson A, Garcia-Velez G, Dostalova V, Bekessy S, Blancafort-Alias S, Hill N, Gascon M, Roque-Figuls M, Bartova A, Daher C, Kolarova I, Cucchiaro A, Colom J, Gentile S, Homerova I, Johnson K, Kimberlee R, Siebert U, Varda D, Pitkala KH. RECETAS: Rationale and logic model of a nature-based social intervention for people experiencing loneliness, Cities & Health. 2023. https://​doi.​org/​10.​1080/​23748834.​2023.​2300207.
26.
go back to reference Litt JS, Coll-Planas L, Sachs AL, Masó Aguado M, Howarth M. Current Trends and Future Directions in Urban Social Prescribing. Curr Environ Health Rep. 2023:1-1. Litt JS, Coll-Planas L, Sachs AL, Masó Aguado M, Howarth M. Current Trends and Future Directions in Urban Social Prescribing. Curr Environ Health Rep. 2023:1-1.
28.
go back to reference Kilgarriff-Foster A, O’Cathain A. Exploring the components and impact of social prescribing. J Public Ment Health. 2015;14(3):127–34.CrossRef Kilgarriff-Foster A, O’Cathain A. Exploring the components and impact of social prescribing. J Public Ment Health. 2015;14(3):127–34.CrossRef
29.
go back to reference Greenhalgh T, Jackson C, Shaw S, Janamian T. Achieving research impact through co-creation in community-based health services: literature review and case study. Milbank Q. 2016;94(2):392–429.CrossRefPubMedPubMedCentral Greenhalgh T, Jackson C, Shaw S, Janamian T. Achieving research impact through co-creation in community-based health services: literature review and case study. Milbank Q. 2016;94(2):392–429.CrossRefPubMedPubMedCentral
30.
go back to reference Zantinge EM, Verhaak PFM, Kerssens JJ, Bensing JM. The workload of GPs: consultations of patients with psychological and somatic problems compared. Br J Gen Pract J R Coll Gen Pract. 2005;55(517):609–14. Zantinge EM, Verhaak PFM, Kerssens JJ, Bensing JM. The workload of GPs: consultations of patients with psychological and somatic problems compared. Br J Gen Pract J R Coll Gen Pract. 2005;55(517):609–14.
31.
go back to reference Mygind L, Kjeldsted E, Hartmeyer RD, Mygind E, Bølling M, Bentsen P. Immersive Nature-Experiences as Health Promotion Interventions for Healthy, Vulnerable, and Sick Populations? A Systematic Review and Appraisal of Controlled Studies. Front Psychol. 2019;10. Available at: https://pubmed.ncbi.nlm.nih.gov/31130890/. Accessed 9 Jan 2023. Mygind L, Kjeldsted E, Hartmeyer RD, Mygind E, Bølling M, Bentsen P. Immersive Nature-Experiences as Health Promotion Interventions for Healthy, Vulnerable, and Sick Populations? A Systematic Review and Appraisal of Controlled Studies. Front Psychol. 2019;10. Available at: https://​pubmed.​ncbi.​nlm.​nih.​gov/​31130890/​. Accessed 9 Jan 2023.
32.
go back to reference Hari J. Lost connections: uncovering the real causes of depression-and the unexpected solutions. Bloomsbury USA; 2019. p. 416. Hari J. Lost connections: uncovering the real causes of depression-and the unexpected solutions. Bloomsbury USA; 2019. p. 416.
34.
go back to reference Santos-Tapia C, Hidalgo L, Jimenez-Arenas P, Casajuana C, Domènech S, Ballester-Lledó A, Blancafort-Alias S. Co-Creating a Nature-Based Social Prescription Intervention in Urban Socioeconomically Deprived Neighbourhoods: A Case Study from RECETAS Project in Barcelona, Spain. Health & Social Care in the Community. 2023;2023. Santos-Tapia C, Hidalgo L, Jimenez-Arenas P, Casajuana C, Domènech S, Ballester-Lledó A, Blancafort-Alias S. Co-Creating a Nature-Based Social Prescription Intervention in Urban Socioeconomically Deprived Neighbourhoods: A Case Study from RECETAS Project in Barcelona, Spain. Health & Social Care in the Community. 2023;2023.
35.
go back to reference Sintonen H. The 15D instrument of health-related quality of life: properties and applications. Ann Med. 2001;33(5):328–36.CrossRefPubMed Sintonen H. The 15D instrument of health-related quality of life: properties and applications. Ann Med. 2001;33(5):328–36.CrossRefPubMed
36.
go back to reference Hoffmann TC, Glasziou PP, Boutron I, Milne R, Perera R, Moher D, Altman DG, Barbour V, Macdonald H, Johnston M, Lamb SE, Dixon-Woods M, McCulloch P, Wyatt JC, Chan AW, Michie S. Better reporting of interventions: template for intervention description and replication (TIDieR) checklist and guide. BMJ. 2014;348:g1687. https://doi.org/10.1136/bmj.g1687. Hoffmann TC, Glasziou PP, Boutron I, Milne R, Perera R, Moher D, Altman DG, Barbour V, Macdonald H, Johnston M, Lamb SE, Dixon-Woods M, McCulloch P, Wyatt JC, Chan AW, Michie S. Better reporting of interventions: template for intervention description and replication (TIDieR) checklist and guide. BMJ. 2014;348:g1687. https://​doi.​org/​10.​1136/​bmj.​g1687.
37.
go back to reference Jansson AH, Savikko NM, Pitkälä KH. Training professionals to implement a group model for alleviating loneliness among older people – 10-year follow-up study. Educ Gerontol. 2018;44(2-3):119–27.CrossRef Jansson AH, Savikko NM, Pitkälä KH. Training professionals to implement a group model for alleviating loneliness among older people – 10-year follow-up study. Educ Gerontol. 2018;44(2-3):119–27.CrossRef
39.
go back to reference Moore, GF, Audrey S, Barker M, Bond L, Bonell C, Hardeman W, Moore L, O'Cathain A, Tinati T, Wight D, Baird J. Process evaluation of complex interventions: Medical Research Council guidance. bmj. 2015;350. Moore, GF, Audrey S, Barker M, Bond L, Bonell C, Hardeman W, Moore L, O'Cathain A, Tinati T, Wight D, Baird J. Process evaluation of complex interventions: Medical Research Council guidance. bmj. 2015;350.
40.
go back to reference Hernán MA, Robins JM. Per-protocol analyses of pragmatic trials. N Engl J Med. 2017;377(14):1391–8.CrossRefPubMed Hernán MA, Robins JM. Per-protocol analyses of pragmatic trials. N Engl J Med. 2017;377(14):1391–8.CrossRefPubMed
41.
go back to reference Latimer NR, White IR, Tilling K, Siebert U. Improving two-stage estimation to adjust for treatment switching in randomised trials: g-estimation to address time-dependent confounding. Stat Methods Med Res. 2020;29(10):2900–18.CrossRefPubMedPubMedCentral Latimer NR, White IR, Tilling K, Siebert U. Improving two-stage estimation to adjust for treatment switching in randomised trials: g-estimation to address time-dependent confounding. Stat Methods Med Res. 2020;29(10):2900–18.CrossRefPubMedPubMedCentral
42.
go back to reference Harris PA, Taylor R, Thielke R, Payne J, Gonzalez N, Conde JG. Research electronic data capture (REDCap)—a metadata-driven methodology and workflow process for providing translational research informatics support. J Biomed Inform. 2009;42(2):377–81.CrossRefPubMed Harris PA, Taylor R, Thielke R, Payne J, Gonzalez N, Conde JG. Research electronic data capture (REDCap)—a metadata-driven methodology and workflow process for providing translational research informatics support. J Biomed Inform. 2009;42(2):377–81.CrossRefPubMed
43.
go back to reference Harris PA, Taylor R, Minor BL, Elliott V, Fernandez M, O’Neal L, et al. The REDCap consortium: building an international community of software platform partners. J Biomed Inform. 2019;95:103208.CrossRefPubMedPubMedCentral Harris PA, Taylor R, Minor BL, Elliott V, Fernandez M, O’Neal L, et al. The REDCap consortium: building an international community of software platform partners. J Biomed Inform. 2019;95:103208.CrossRefPubMedPubMedCentral
Metadata
Title
Nature-based social interventions to address loneliness among vulnerable populations: a common study protocol for three related randomized controlled trials in Barcelona, Helsinki, and Prague within the RECETAS European project
Authors
Laura Coll-Planas
Aina Carbó-Cardeña
Anu Jansson
Vladimira Dostálová
Alzbeta Bartova
Laura Rautiainen
Annika Kolster
Montse Masó-Aguado
Laia Briones-Buixassa
Sergi Blancafort-Alias
Marta Roqué-Figuls
Ashby Lavelle Sachs
Cristina Casajuana
Uwe Siebert
Ursula Rochau
Sibylle Puntscher
Iva Holmerová
Kaisu H. Pitkala
Jill S. Litt
Publication date
01-12-2024
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2024
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/s12889-023-17547-x

Other articles of this Issue 1/2024

BMC Public Health 1/2024 Go to the issue