Guangting Huang
Xiaotong Yang2
Yinhua Wang- 1The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- 2Guizhou Medical University, Guiyang, Guizhou, China
- 3Weng’an County People’s Hospital, Weng’an, Guizhou, China
Background: To combat loneliness among elderly individuals, it is crucial to identify effective strategies that can alleviate the negative impact of loneliness on their overall well-being.
Objective: This study evaluated social support programs’ impact on loneliness in community-dwelling older adults. The goal was to inform tailored interventions that decrease loneliness and improve quality of life.
Methods: We systematically searched ten electronic databases (EMBASE, PubMed, Cochrane Library, Web of Science, CNKI, Weipu, WanFang, CBM) from inception to December 31, 2023, with citation chasing. Included randomized controlled trials (RCTs) tested social support interventions for loneliness reduction. Two independent reviewers extracted participant details, study characteristics, interventions, and outcomes. The methodological rigor of the included studies was assessed by JBI critical appraisal checklists.
Results: Nineteen studies met inclusion criteria, with over half from China (n = 7) and the United States (n = 4). Meta-analysis showed that social support helped alleviate loneliness and the difference was statistically significant [SMD = −0.60, 95%CI (−1.00, −0.20), I2 = 93%, P = 0.003, random effect model]. Subgroup analysis showed significantly lower loneliness scores in experimental groups at less than 3 months [SMD = −0.68, 95%CI (−1.31, −0.06), I2 = 93%, P = 0.03, random effect model]. In addition, multiple-intervention groups also showed significantly lower scores versus controls. The combined result was [SMD = −1.26, 95%CI (−2.20, −0.32), I2 = 97%, P = 0.008, random effect model].
Conclusion: Social support interventions effectively reduce loneliness among community-dwelling older adults. For practical application, community health professionals are encouraged to implement short-term (≤3 months) multicomponent programs that combine emotional, peer, and technological support, delivered through group counseling, tele-support, or structured social activities. Integrating these interventions into routine community nursing services and local age-friendly programs may enhance mental wellbeing and social connectedness among older adults.
Introduction
Loneliness is described as an involuntary social isolation, which is prevalent among older adults and may limit their access and ability to maintain social relationships (Lampinen et al., 2022; Manzanares et al., 2021). Several studies have indicated that more than 33% of this population experiences isolation (Gardiner et al., 2020; Timmermans et al., 2019). Moreover, the frequency of loneliness rises with age (Chen and Gong, 2022). This condition significantly impacts physical and mental health, being linked to immune dysfunction, inflammation, cognitive decline, depression, anxiety, hypertension, and even premature mortality (Lapane et al., 2022; Yu et al., 2021; Perissinotto et al., 2019). Hence, identifying effective strategies to reduce loneliness among community-dwelling older adults has become a critical public health priority.
Social isolation refers to an objective lack of social contact, whereas loneliness is a subjective perception of insufficient or unsatisfying social relationships (de Jong-Gierveld et al., 2006; Petersen et al., 2020). This distinction is particularly important in the present study, because prior research often combined these two outcomes, leading to inconsistent findings regarding intervention effectiveness. By focusing specifically on loneliness—a subjective emotional experience—our study provides more precise evidence to guide the design of interventions that target perceived rather than structural deficits in social relationships.
Social support has been identified as a key protective factor against loneliness, encompassing emotional support (expressions of empathy and care), instrumental or practical support (assistance with daily activities), and informational support (advice and guidance) (Kassim and Ahmad Badayai, 2023). Zhang demonstrated a negative correlation between higher social support levels and loneliness (Zhang and Dong, 2022). Conversely, inadequate social connectedness increases loneliness risk in older adults (O'Rourke et al., 2018). Some research suggests that having a large social network may be beneficial, the quality of relationships within that network, such as feeling understood, valued, and supported, may be more critical in reducing loneliness (Hawkley and Kocherginsky, 2018). While short-term support interventions show positive effects (Dahlberg et al., 2022), questions remain regarding which forms and durations of support yield the most sustainable effects. Some researchers have previously systematically reviewed interventions for social isolation, which included objective social isolation and loneliness (Ibarra et al., 2020; Ma et al., 2020; Noone et al., 2020). Such an approach may obscure the specific effectiveness of social support on loneliness itself. Hence, our study addressed important evidence gaps in existing literature by: Isolating social support as a standalone intervention category; including only community-based studies to improve contextual relevance; conducting detailed subgroup analyses on duration and format of interventions. These refinements are crucial for informing targeted, sustainable, and culturally appropriate interventions that can be scaled within community health systems.
To address these gaps, this study aimed to analyze randomized controlled trials and perform a meta-analysis to assess the impact of social support interventions on loneliness in older adults living in the community. Our approach provides a more targeted examination of a single social support intervention type, across culturally diverse settings including China, which has been underrepresented in prior meta-analyses. Moreover, we explore effect moderators such as intervention duration (<3 months, 3–6 months, >6 months) and intervention complexity (single and multicomponent). Developing specific and efficient social support programs can aid in decreasing feelings of isolation and enhancing the overall quality of life for older individuals living in the community.
Methods
The guidelines outlined in the PRISMA Extension Statement for Reporting of Systematic Reviews that Include Meta-Analyses of Health Care Interventions were adhered to when reporting this meta-analysis (Hutton et al., 2015). The research has been properly recorded in PROSPERO with the registration code CRD42020226523. An earlier version of the study protocol has been published (Wang et al., 2023).
Search strategy
A comprehensive systematic search was conducted across eight electronic databases from inception to 30 June 2024. The following databases were queried: EMBASE, PubMed, the Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (Weipu), WanFang Database, and China Biology Medicine disc (CBM). Search terms were developed by combining Medical Subject Headings (MeSH) and free-text keywords related to three domains: loneliness (e.g., “social isolation” or “loneliness” or “social exclusion” or “social exclusions” or “ostracism” or “social alienation”), old adults (e.g., “aged” or “elderly” or “oldest old” or “agenarians” or “nonagenarian” or “octogenarian” or “centenarian” or “old people or “old person” or “old adult”), and social support interventions (e.g., “social support” or “social care” or “psychosocial support” or “psychological support”). Citation chasing was performed by manually screening the reference lists of all included articles and relevant reviews to identify additional studies. Only studies published in English and Chinese were included, due to database coverage and the language proficiency of the review team. Grey literature was not included, as this study focused on peer-reviewed evidence.
Inclusion and exclusion criteria
Inclusion criteria for the studies were as follows: (a) individuals aged 60 years or older residing in the community; (b) the experimental group received social support interventions of any kind; (c) validated tools like the Los Angeles Loneliness Scale from UCLA (UCLA), the De Jong Loneliness Scale (DJLS), the PROMIS-L Social Isolation Scale (PROMIS-L), Ando-Osada-Kodama (AOK) loneliness scale; (d) comparisons were made against passive (usual care) or active (non-social support) control groups; (e) study design was randomized controlled trial (RCT); (f) publications were in English or Chinese. The exclusion criteria were (a) no full text; (b) studies that reported duplicate data.
Study selection and data extraction
The research selection and data extraction process involved three reviewers. Two reviewers autonomously chose all research papers based on their titles, abstracts, and full texts, following the specified inclusion and exclusion criteria. To address any inconsistencies or disputes that arose during the selection process, a third reviewer was brought in for consultation.
Data were extracted using astandardized form. Included in the data were basic information, participant details (including number, eligibility, age, and gender), intervention/exposure specifics (type, frequency, duration, content, comparison with control group, delivery format, provider information), outcome data (effect size, standard deviations, statistical significance), and instruments used. Data missing for relevant outcomes were obtained from original authors via email.
Quality assessment of included studies
Two researchers independently evaluated the methodological rigor of the studies included, utilizing the Joanna Briggs Institute (JBI) critical appraisal checklists for randomized controlled trials (RCTs) (Munn et al., 2020). The checklist for randomized controlled trials includes 13 items that can be answered with “yes,” “no,” “unclear” or “not applicable,” and a “yes” response is worth one point. Referring to the JBI manual and previous research, RCTs with scores less than seven points were identified as weak quality studies. Any disagreements among reviewers were settled through consensus or conversation with a third reviewer.
Statistical analysis
Review Manager (RevMan 5.3) and R Studio softwares were used for quantitative analysis of selected studies. The research utilized a narrative approach that was not suitable for quantitative analysis in the meta-analysis. The inverse variance method was employed in meta-analysis to determine the weights assigned to the studies. Effect size was determined by calculating the mean and standard deviation (SD) of the difference between scores at the last follow-up and baseline. In the pooled analysis, mean differences (MD) or standardized mean differences (SMD) were utilized as effect estimates along with their corresponding 95% confidence intervals (CI). SMD is utilized when assessing the identical result using a distinct tool compared to the identical result assessed using the identical tool. Statistical heterogeneity was assessed using the Chi-squared test and I2 statistic. A random-effects model was adopted when significant heterogeneity was detected (I2 > 40% or p < 0.05); otherwise, a fixed-effects model was used. Sensitivity analyses were conducted by excluding lower-quality studies to examine the robustness of results. Sensitivity tests were performed to evaluate the impact of a low-quality study on combined results. Publication bias was evaluated visually via funnel plots and statistically using Egger’s regression test. An analysis of subgroups was conducted to investigate how various lengths and forms of social support impact results.
Results
Study selection
A total of 2,420 articles were retrieved in Figure 1. Out of the articles reviewed, 789 duplicates were removed using Endnote software, 1,490 articles were eliminated based on title and abstract, leaving 141 articles for full-text screening. This study ultimately incorporated 19 research studies (Banks and Banks, 2005; Chang et al., 2018; Choi et al., 2020; Cohen-Mansfield et al., 2018; Galinha et al., 2021; Gilbody et al., 2021; Gu et al., 2019; José. et al., 2022; Ilgaz et al., 2023; Kremers et al., 2006; Lai et al., 2020; Larsson et al., 2016; Ristolainen et al., 2020; Rodríguez-Romero et al., 2021; Saito et al., 2012; Wang et al., 2014; Wei et al., 2021; Yang et al., 2023; Zhou et al., 2014).
Figure 1. PRISMA flow chart of study selection.
Study characteristics
The characteristics of the included studies are displayed in Table 1. China (n = 7) and United States (n = 4) accounted for the majority of the studies conducted. The 16 studies included 1,809 subjects, with sample sizes varying from 14 to 392 older adults. The average age of the population fell between 60.00 and 84.17 years. The types of interventions were divided into single intervention (n = 12) and multiple intervention (n = 7). The single intervention were various, including group counseling (Gu et al., 2019; Wang et al., 2014), tele-support (Choi et al., 2020; Gilbody et al., 2021), social activity (Galinha et al., 2021; Larsson et al., 2016), animal-assisted therapy (Banks and Banks, 2005), professional support (Zhou et al., 2014), peer support (Lai et al., 2020), Group intervention of Technology (Wei et al., 2021), support from themselves (Kremers et al., 2006), and I-SOCIAL intervention (Cohen-Mansfield et al., 2018). The interventions in control group were usual care (n = 12), follow-up visits (n = 2), no treatment (n = 2), and tele-support (n = 3). The intervention duration ranged from 4 weeks to 3 years. Half of the studies conducted follow-up after intervention, but other studies did not describe the follow-up period. Follow-up duration varied between 1 week and 6 months. The level of loneliness was assessed through various scales including UCLA (n = 12), DJLS (n = 4), PROMIS-L (n = 1), AOK loneliness scale (n = 1), and loneliness scale for the elderly (n = 1). There are numerous variations of the instruments, with UCLA having five versions and DJLS having two.
Table 1. Study and patient characteristics (n = 19).
Methodological quality and risk of bias within studies
The summary of the bias risk in the 19 studies was provided in supplementary material. 17 RCTs met 7–13 items. No randomized controlled trials achieved complete blinding of participants, providers, and evaluators at the same time. Five randomized controlled trials failed to meet the five criteria of the JBI critical appraisal checklist. Twelve randomized controlled trials did not clearly report allocation concealment, did not conduct intention-to-treat analysis, and did not blind participants, implementers, and outcome assessors.
Effect of social support on reducing loneliness
A meta-analysis was performed on 19 studies in Figure 2 to investigate how social support can reduce loneliness. The analysis included 1809 participants, with 892 in the experimental group and 917 in the control group. The primary analysis showed a significant impact of the intervention compared to the control group in decreasing feelings of isolation [SMD = −0.60, 95%CI (−1.00, −0.20), P = 0.003, random effect model], suggesting a substantial effect with a wide yet meaningful confidence range. The studies showed a significant amount of diversity (I2 = 93%, P < 0.001), suggesting a substantial level of variation among them. Therefore, further subgroup analysis was conducted to examine potential factors explaining the heterogeneity among these studies.
Figure 2. Effect of social support on loneliness in older adults.
Given the potential impact of intervention duration on effectiveness, this study categorized duration into three subgroups. The findings indicated that participants in the experimental group experienced notably reduced feelings of lonely in comparison to those in the control group within less than 3 months. The combined results were [SMD = −0.68, 95%CI (−1.31, −0.06), I2 = 93%, P = 0.03, random effect model]. No significant variances were noted between the intervention and control groups when the intervention lasted 3–6 months or more than 6 months [SMD = −0.66, 95%CI (−1.50, 0.18), I2 = 96%, P = 0.13, random effect model] and [SMD = −0.17, 95%CI (−0.41, 0.06), I2 = 0%, P = 0.52, random effect model] in Figure 3.
Figure 3. Subgroup analysis of different duration of social support on loneliness in older adults.
It stratified interventions into two subgroups based on the potential impact of intervention types on efficacy, including single intervention and multiple intervention. The findings indicated that the multiple intervention group had notably reduced feelings of loneliness in comparison to the control group. The pooled results were [SMD = −1.26, 95%CI (−2.20, −0.32), I2 = 97%, P < 0.001, random effect model]. In contrast, the subset that received single treatment did not display a notable distinction between the groups that received intervention and those that did not [SMD = −0.22, 95%CI (−0.55, 0.12), I2 = 82%, P = 0.200, random effect model] in Figure 4.
Figure 4. Subgroup analysis of different types of social support on loneliness in older adults.
Publication bias analysis
According to the funnel plot analysis and the Egger test conducted using R Studio on 19 included papers in this study (t = −1.43, df = 17, p = 0.171), suggesting low probability of publication bias in Table 2 and Figure 5.
Table 2. Reporting quality assessment of 19 publications (JBI critical appraisal checklist for randomized controlled trials).
Figure 5. Funnel plot and Egger test results.
Discussion
This meta-analysis provides the first comprehensive evaluation of interventions aimed at providing social support to address loneliness among older individuals. In this study, we meta-analyzed data from 19 peer-reviewed articles and involved 1809 participants. We found a significant result about social support on loneliness, which was differ from some studies. According to Ma, R. M., systematic evaluations of interventions on loneliness and social isolation did not show clear effects (Ma et al., 2020). The notable finding in this research could be associated with the particular strategy known as social support. This study verified that social support can be considered a useful healthcare service to reduce loneliness in elderly.
Social support encompasses various forms of aid such as tangible help, emotional support, close relationships, guidance, input, and beneficial social connections within different areas of support (Wang et al., 2023). According to the different sources of social support, which includes community support, volunteer support, family support, professional support, and peer support (Chen et al., 2014; Zhang and Dong, 2022). There is difficulty in conducting a subgroup analysis of social support based on the intervention classification in the included studies. Hence, we divided the types of interventions into single intervention and multiple intervention. The results indicate that multiple interventions are more effective than single interventions. It is recommended that researchers should develop rigorous intervention program based on the classification of social support, to provide clear guidance for clinical nursing staff.
Group counseling, tele-support and social activity were the popular types of social support. Providing individuals with a shared space where they can express their feelings of loneliness and be understood by others experiencing similar emotions and professional development is proven to be beneficial in group counseling (Gu et al., 2019). Tele-support plays several roles in addressing loneliness and provides a convenient platform for individuals to establish and maintain social connections remotely. It can provide remote mental health support, educational programs, crisis intervention for old people (Bar-Tur et al., 2022; Choi et al., 2020). Additionally, it demonstrated that engaging in social activities fosters emotional support by fostering a sense of belonging to a group. The identification with a group is essential for older adults to experience wellbeing and health advantages (Galinha et al., 2021). Tele-support and social activities constitute essential components of standard community care for older adults, given their demonstrable efficacy and broad applicability.
According to Dahlberg’s research identified that interventions focusing on social connectedness had short-term but not sustained effects on loneliness (Dahlberg et al., 2022), our subgroup analysis highlighted short-term (<3 months) interventions as optimal for effectiveness and feasibility. Balancing a sustainability threshold (<6 months) that mitigates attrition risks (Tkatch et al., 2021; Bruce et al., 2021). Prolonged interventions demonstrate diminishing returns due to participant fatigue (Fakoya et al., 2020), reduced relevance from evolving health/social circumstances (Jin et al., 2021), and resource inefficiency (Quan et al., 2020). This equilibrium period maximizes intervention efficacy while preventing the diminished benefits observed in longer trials.
Strengths and limitations
There are multiple advantages to this research. This study explored the effects of different social support on elderly loneliness. Analyzing various durations and types of interventions further assessed the impact of social support on loneliness in elderly individuals. Additionally, the present research has its own constraints. Due to inconsistent classification of social support in the included studies is confused, it is not possible to analyze subgroup based on a certain classification and determine which specific type of social support is more effective for elderly loneliness. Although the included studies provided valuable insight, some contextual factors such as gender, socioeconomic status, and rural–urban differences were rarely reported or inconsistently measured, precluding subgroup analysis. The instruments of outcomes included in the study were validated tools, there were too many versions available. It may contribute to statistical heterogeneity. Despite efforts to reach out to the authors, numerous studies were excluded during the literature screening process due to insufficient data. This may lead to a potential bias about our results. Variations in national healthcare systems and community care structures may influence the implementation and sustainability of social support interventions. Additionanlly, differences in intervention providers can lead to inconsistencies in quality and intensity, contributing to heterogeneity. Future research should further examine how these factors affect intervention outcomes.
Author contributions
GH: Data curation, Methodology, Supervision, Validation, Writing – review and editing. XY: Supervision, Investigation, Formal Analysis, Writing – original draft, Project administration. LY: Methodology, Formal Analysis, Data curation, Software, Writing – review and editing, Conceptualization, Investigation, Supervision, Writing – original draft, Project administration. XL: Investigation, Methodology, Supervision, Writing – original draft, Formal Analysis. YuW: Software, Data curation, Writing – original draft, Methodology. SZ: Data curation, Formal analysis, Writing – review and editing. YiW: Data curation, Software, Investigation, Writing – review and editing, Conceptualization, Project administration, Writing – original draft, Methodology, Formal Analysis, Supervision.
Funding
The author(s) declared that financial support was not received for this work and/or its publication.
Acknowledgements
We would like to thank all authors of studies included in this meta-analysis.
Conflict of interest
The author(s) declared that this work was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Generative AI statement
The author(s) declared that generative AI was not used in the creation of this manuscript.
Any alternative text (alt text) provided alongside figures in this article has been generated by Frontiers with the support of artificial intelligence and reasonable efforts have been made to ensure accuracy, including review by the authors wherever possible. If you identify any issues, please contact us.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
Supplementary material
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fragi.2025.1594513/full#supplementary-material
References
Ayşegül, I., and Sebahat, G. (2023). Effectiveness of INOSEL program consisting of Integrative Nursing and Omaha System for older women feeling loneliness: a randomised controlled trial. Aging Clin. Exp. Res. 35 (11), 2769–2781. doi:10.1007/s40520-023-02559-9
Banks, M. R., and Banks, W. A. (2005). The effects of group and individual animal-assisted therapy on loneliness in residents of long-term care facilities. Anthrozoos 18 (4), 396–408. doi:10.2752/089279305785593983
Bar-Tur, L., Inbal-Jacobson, M., Brik-Deshen, S., Zilbershlag, Y., Naim, S. P., and Brick, Y. (2022). “Telephone-based emotional support for older adults during the COVID-19 pandemic,” in The COVID-19 pandemic and older adults (London, United Kingdom: Routledge), 230–246.
Bruce, M. L., Pepin, R., Marti, C. N., Stevens, C., and Choi, N. G. (2021). One year impact on social connectedness for homebound older adults: randomized controlled trial of tele-delivered behavioral activation Versus tele-delivered friendly visits. Am. Journal Geriatric Psychiatry 29 (8), 771–776. doi:10.1016/j.jagp.2021.05.005
Chang, W., Li, X., Chen, C., and An, S. (2018). Effect of intervention based on health ecology theory on physical and mental health of disabled empty-nest elderly. J. Nurs. Sci. 33 (14), 89–92. doi:10.3870/j.issn.1001-4152.2018.14.089
Chen, Y., Hicks, A., While, A. E. J. H., and community, s. c. i. t. (2014). Loneliness and social support of older people in C hina: a systematic literature review. Health Soc. Care Community 22 (2), 113–123. doi:10.1111/hsc.12051
Chen, J., and Gong, L. J. H. (2022). Loneliness in urbanising China. Health Soc. Care Community 30 (3), e812–e822. doi:10.1111/hsc.13451
Choi, N. G., Pepin, R., Marti, C. N., Stevens, C. J., and Bruce, M. L. (2020). Improving Social Connectedness for Homebound Older Adults: randomized Controlled Trial of Tele-Delivered Behavioral Activation Versus Tele-Delivered Friendly Visits. Am. Journal Geriatric Psychiatry 28 (7), 698–708. doi:10.1016/j.jagp.2020.02.008
Cohen-Mansfield, J., Hazan, H., Lerman, Y., Shalom, V., Birkenfeld, S., and Cohen, R. (2018). Efficacy of the I-SOCIAL intervention for loneliness in old age: lessons from a randomized controlled trial. J. Psychiatric Research 99, 69–75. doi:10.1016/j.jpsychires.2018.01.014
Dahlberg, L., McKee, K. J., Frank, A., Naseer, M. J. A., and health, m. (2022). A systematic review of longitudinal risk factors for loneliness in older adults. Aging Ment. Health 26 (2), 225–249. doi:10.1080/13607863.2021.1876638
de Jong-Gierveld, J., van Tilburg, T. G., and Dykstra, P. A. (2006). “Loneliness and social isolation,” in The Cambridge handbook of personal relationships (Cambridge University Press), 485–500.
Fakoya, O. A., McCorry, N. K., and Donnelly, M. J. B. p. h. (2020). Loneliness and social isolation interventions for older adults: a scoping review of reviews, 20, 1–14.
Galinha, I. C., García-Martín, M., and Lima, M. L. (2021). Sing4Health: randomised controlled trial of the effects of a singing group program on the subjective and social well-being of older adults. Appl. Psychol. Health Well Being 14, 176–195. doi:10.1111/aphw.12297
Gardiner, C., Laud, P., Heaton, T., and Gott, M. (2020). What is the prevalence of loneliness amongst older people living in residential and nursing care homes? A systematic review and meta-analysis. Age Ageing 49 (5), 748–757. doi:10.1093/ageing/afaa049
Gilbody, S., Littlewood, E., McMillan, D., Chew-Graham, C. A., Bailey, D., Gascoyne, S., et al. (2021). Behavioural activation to prevent depression and loneliness among socially isolated older people with long-term conditions: the BASIL COVID-19 pilot randomised controlled trial. PLoS Medicine 18 (10), e1003779. doi:10.1371/journal.pmed.1003779
Gu, J., Yu, L., Zhang, X., Yu, X., and Sha, W. (2019). The effectiveness of group counselling in reducing loneliness among elderly people in nursing homes: a randomised controlled study. Contemp. Nurses Low. Decade 26 (7), 109–111. (in Chinese).
Hawkley, L. C., and Kocherginsky, M. J. R. o. a. (2018). Transitions in loneliness among older adults: a 5-year follow-up in the national Social Life. Health, Aging Proj. 40 (4), 365–387. doi:10.1177/0164027517698965
Hutton, B., Salanti, G., Caldwell, D. M., Chaimani, A., Schmid, C. H., Cameron, C., et al. (2015). The PRISMA extension statement for reporting of systematic reviews incorporating network meta-analyses of health care interventions: checklist and explanations. Ann. Intern. Med. 162 (11), 777–784. doi:10.7326/M14-2385
Ibarra, F., Baez, M., Cernuzzi, L., and Casati, F. (2020). A systematic review on technology-supported interventions to improve old-age social wellbeing: loneliness, social isolation, and connectedness. J. Healthc. Eng. 2020, 2036842. Article 2036842. doi:10.1155/2020/2036842
Ilgaz, A., Gözüm, S. J. A. C., and Research, E. (2023). Effectiveness of INOSEL program consisting of Integrative Nursing and Omaha System for older women feeling loneliness: a randomised controlled trial. 35(11), 2769–2781.
Jin, W., Liu, Y., Yuan, S., Bai, R., Li, X., and Bai, Z. J. F. i. P. (2021). The effectiveness of technology-based interventions for reducing loneliness in older adults: a systematic review and meta-analysis of randomized controlled trials. Front. Psychol. 12, 711030. doi:10.3389/fpsyg.2021.711030
José, H., Luis Ángel, P. T., Manuel, R., Josefa, G., Juan, M., and Jerónimo, G. (2022). Effectiveness of a multicomponent intervention to reduce social isolation and loneliness in community-dwelling elders: A randomized clinical trial. Nurs. Open 10 (1), 48–60. doi:10.1002/NOP2.1277
Kassim, S. N. A. b., and Ahmad Badayai, A. R. (2023). Social support and coping strategies as mediators in the relationship between feeling of loneliness and mental health. International Journal of Academic Research in Business and Social Sciences.
Kremers, I. P., Steverink, N., Albersnagel, F. A., and Slaets, J. P. (2006). Improved self-management ability and well-being in older women after a short group intervention. Aging & Mental Health 10 (5), 476–484. doi:10.1080/13607860600841206
Lai, D. W. L., Li, J., Ou, X., and Li, C. Y. P. (2020). Effectiveness of a peer-based intervention on loneliness and social isolation of older Chinese immigrants in Canada: a randomized controlled trial journal Article; Randomized controlled Trial. BMC Geriatrics 20 (1), 356. doi:10.1186/s12877-020-01756-9
Lampinen, J., Conradsson, M., Nyqvist, F., Olofsson, B., Gustafson, Y., Nilsson, I., et al. (2022). Loneliness among very old people with and without dementia: prevalence and associated factors in a representative sample. Eur. J. Ageing 19 (4), 1441–1453. doi:10.1007/s10433-022-00729-8
Lapane, K. L., Lim, E., McPhillips, E., Barooah, A., Yuan, Y., and Dube, C. E. J. A. o. G. (2022). Health effects of loneliness and social isolation in older adults living in congregate long term care settings: a systematic review of quantitative and qualitative evidence, Arch. Gerontol. Geriatr. 102, 104728, doi:10.1016/j.archger.2022.104728
Larsson, E., Padyab, M., Larsson-Lund, M., and Nilsson, I. (2016). Effects of a social internet-based intervention programme for older adults: an explorative randomised crossover study. Br. J. Occup. Ther. 79 (10), 629–636. doi:10.1177/0308022616641701
Ma, R. M., Mann, F., Wang, J. Y., Lloyd-Evans, B., Terhune, J., Al-Shihabi, A., et al. (2020). The effectiveness of interventions for reducing subjective and objective social isolation among people with mental health problems: a systematic review. Soc. Psychiatry Psychiatric Epidemiology 55 (7), 839–876. doi:10.1007/s00127-019-01800-z
Manzanares, O., Tran, Q. D., and Le Breton, J. J. R. M. S. (2021). Social isolation and loneliness among old people during Covid-19 pandemic. Rev. Med. Suisse 17 (757), 1878–1882.
Munn, Z., Barker, T. H., Moola, S., Tufanaru, C., Stern, C., McArthur, A., et al. (2020). Methodological quality of case series studies: an introduction to the JBI critical appraisal tool. JBI Evid. Synth. 18 (10), 2127–2133. doi:10.11124/JBISRIR-D-19-00099
Noone, C., McSharry, J., Smalle, M., Burns, A., Dwan, K., Devane, D., et al. (2020). Video calls for reducing social isolation and loneliness in older people: a rapid review. Cochrane Database Syst. Rev. 5 (5), CD013632. doi:10.1002/14651858.CD013632
O'Rourke, H. M., Collins, L., and Sidani, S. (2018). Interventions to address social connectedness and loneliness for older adults: a scoping review. BMC Geriatrics 18, 214. doi:10.1186/s12877-018-0897-x
Perissinotto, C., Holt-Lunstad, J., Periyakoil, V. S., and Covinsky, K. J. J. o. t. A. G. S. (2019). A practical approach to assessing and mitigating loneliness and isolation in older adults. J. Am. Geriatr. Soc. 67 (4), 657–662. doi:10.1111/jgs.15746
Petersen, N., König, H.-H., and Hajek, A. J. A. o. g. (2020). The link between falls, social isolation and loneliness. A Systematic Review 88, 104020. doi:10.1016/j.archger.2020.104020
Quan, N. G., Lohman, M. C., Resciniti, N. V., Friedman, D. B. J. A., and health, m. (2020). A systematic review of interventions for loneliness among older adults living in long-term care facilities. Aging Ment. Health 24 (12), 1945–1955. doi:10.1080/13607863.2019.1673311
Ristolainen, H., Kannasoja, S., Tiilikainen, E., Hakala, M., Narhi, K., and Rissanen, S. (2020). Effects of ?participatory group -based care management? On wellbeing of older people living alone: a randomized controlled trial. Archives Gerontology Geriatrics 89, 104095. doi:10.1016/j.archger.2020.104095
Rodríguez-Romero, R., Herranz-Rodríguez, C., Kostov, B., Gené-Badia, J., and Sisó-Almirall, A. (2021). Intervention to reduce perceived loneliness in community-dwelling older people. Scand. Journal Caring Sciences 35 (2), 366–374. doi:10.1111/scs.12852
Saito, T., Kai, I., and Takizawa, A. (2012). Effects of a program to prevent social isolation on loneliness, depression, and subjective well-being of older adults: a randomized trial among older migrants in Japan. Archives Gerontology Geriatrics 55 (3), 539–547. doi:10.1016/j.archger.2012.04.002
Timmermans, E. J., Hoogendijk, E. O., Broese van Groenou, M. I., Comijs, H. C., van Schoor, N. M., Thomése, F. C., et al. (2019). Trends across 20 years in multiple indicators of functioning among older adults in the Netherlands. Eur. J. Public Health 29 (6), 1096–1102. doi:10.1093/eurpub/ckz065
Tkatch, R., Wu, L. Z., MacLeod, S., Ungar, R., Albright, L., Russell, D., et al. (2021). Reducing loneliness and improving well-being among older adults with animatronic pets. Aging & Mental Health 25 (7), 1239–1245. doi:10.1080/13607863.2020.1758906
Wang, P., Cui, Y., Zhao, W., Duan, X., and Wang, D. (2014). Loneliness in older adults and its intervention effect of group counselling. Chin. J. Health Psychol. 9, 1398–1400. doi:10.13342/j.cnki.cjhp.2014.09.047
Wang, Y., Li, X., Yao, L., Ren, T., and Wang, T. J. B. o. (2023). Effectiveness of social support programmes on loneliness in community-dwelling older adults: study protocol for a meta-analysis of randomised controlled trials. BMJ Open 13 (12), e073739. doi:10.1136/bmjopen-2023-073739
Wei, D., Liu, S., Deng, S., Yan, X., and Wang, C. (2021). Relationship between social media use and older adults' loneliness and social support and interventions. Chin. J. Gerontology 41 (20), 4584–4587. doi:10.3969/j.issn.1005-9202.2021.20.066
Yang, S. Y., Yang, C. C., Lee, Y. C., Hsieh, P. L., Lin, Y. L. J. G., and International, G. (2023). Investigating the effectiveness of online interactive courses on loneliness and quality of life of older adults in the community during the COVID-19 pandemic. A Pilot Study a Randomized Controlled Trial 23 (2), 91–97. doi:10.1111/ggi.14526
Yu, K. X., Wu, S. Y., Jang, Y. R., Chou, C. P., Wilber, K. H., Aranda, M. P., et al. (2021). Longitudinal assessment of the relationships between geriatric conditions and loneliness. J. Am. Med. Dir. Assoc., 22(5), 1107–1113.e1. doi:10.1016/j.jamda.2020.09.002
Zhang, X., and Dong, S. J. A. P. (2022). The relationships between social support and loneliness: a meta-analysis and review, Acta Psychol. 227, 103616, doi:10.1016/j.actpsy.2022.103616
Keywords: social support, loneliness, older adults, community dwelling, meta-analysis
Citation: Huang G, Yang X, Yao L, Li X, Wu Y, Zhou S and Wang Y (2026) The effectiveness of social support interventions on loneliness among older people in the community: a meta-analysis of randomised controlled trials. Front. Aging 6:1594513. doi: 10.3389/fragi.2025.1594513
Received: 16 March 2025; Accepted: 17 December 2025;
Published: 07 January 2026.
Edited by:
Anubhuti Dubey, Deen Dayal Upadhyay Gorakhpur University, IndiaReviewed by:
Selma Durmuş Sarikahya, Artvin Coruh University, TürkiyeRamachandran Ramkumar, College of Food and Dairy Technology Koduvalli, India
Copyright © 2026 Huang, Yang, Yao, Li, Wu, Zhou and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Yinhua Wang, d2FuZ3lpbmh1YTM0NjNAMTYzLmNvbQ==