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Methods of identifying and recruiting older people at risk of social isolation and loneliness: A mixed methods review

Ige, Janet; Gibbons, Lynn; Bray, Issy; Gray, Selena

Authors

Janet Ige Janet.Ige@uwe.ac.uk
Research Fellow in Health and Sustainability

Lynn Gibbons

Issy Bray Issy.Bray@uwe.ac.uk
Associate Head of Department, Research and Knowledge Exchange



Abstract

Background
Loneliness and social isolation are major determinants of mental wellbeing, especially among older adults. The effectiveness of interventions to address loneliness and social isolation among older adults has been questioned due to the lack of transparency in identifying and recruiting populations at risk. This paper aims to systematically review methods used to identify and recruit older people at risk of loneliness and social isolation into research studies that seek to address loneliness and social isolation.

Methods
In total, 751 studies were identified from a structured search of eleven electronic databases combined with hand searching of reference bibliography from identified studies for grey literature. Studies conducted between January 1995 and December 2017 were eligible provided they recruited community living individuals aged 50 and above at risk of social isolation or loneliness into an intervention study.

Result
A total of 22 studies were deemed eligible for inclusion. Findings from these studies showed that the most common strategy for inviting people to participate in intervention studies were public-facing methods including mass media and local newspaper advertisements. The majority of participants identified this way were self-referred, and in many cases self-identified as lonely. In most cases, there was no standardised tool for defining loneliness or social isolation. However, studies that recruited via referral by recognised agencies reported higher rates of eligibility and enrolment. Referrals from primary care were only used in a few studies. Studies that included agency referral either alone or in combination with multiple forms of recruitment showed more promising recruitment rates than those that relied on only public facing methods. Further research is needed to establish the cost-effectiveness of multiple forms of referral.

Conclusion
Findings from this study demonstrate the need for transparency in writing up the methods used to approach, assess and enrol older adults at risk of becoming socially isolated. None of the intervention studies included in this review justified their recruitment strategies. The ability of researchers to share best practice relies greatly on the transparency of research.

Journal Article Type Article
Publication Date Aug 29, 2019
Journal BMC Medical Research Methodology
Electronic ISSN 1471-2288
Publisher BMC
Peer Reviewed Peer Reviewed
Volume 19
Issue 1
Article Number 181
APA6 Citation Ige, J., Gibbons, L., Bray, I., & Gray, S. (2019). Methods of identifying and recruiting older people at risk of social isolation and loneliness: A mixed methods review. BMC Medical Research Methodology, 19(1), https://doi.org/10.1186/s12874-019-0825-6
DOI https://doi.org/10.1186/s12874-019-0825-6
Keywords Health Informatics; Epidemiology
Publisher URL https://bmcmedresmethodol.biomedcentral.com/
Additional Information Received: 8 November 2018; Accepted: 19 August 2019; First Online: 29 August 2019; : This research was perceived to be low risk as it used anonymised secondary data from published studies. Nevertheless, the primary studies included in the review were screened for ethics approval.; : Not applicable.; : The authors declare that they have no competing interests.

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