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Horticultural therapy for general health in the older adults: a systematic review and meta-analysis

Horticultural therapy for general health in the older adults: a systematic review and meta-analysis
Horticultural therapy for general health in the older adults: a systematic review and meta-analysis

Background: with a pronounced and historically unprecedented tendency of population ageing, research on ageing and related disorders has been increasingly brought into focus. Horticultural therapy (HT), as an important role of social prescribing, has been an integrative for decades. This systematic review and meta-analysis aimed to evaluate HT for general health in older adults. 

Methods: electronic databases including PubMed, Web of Science, ScienceDirect, the Cochrane Library, MEDLINE (Ovid), EMBASE (Ovid), CINAHL (EBSCO), China National Knowledge Infrastructure (CNKI), and the Wanfang database, grey literature databases and clinical trials registers were searched from inception to March 2021. Randomized controlled trials (RCTs), quasi-RCTs (QRCTs) and the cohort studies about HT for adults aged over 60 were included in this study. Outcome measures were physical function, quality of life, BMI, mood tested by self-reported questionnaire and the expression of the immune cells. The study was registered under PROSPERO (CRD42019146184). 

Results: totally, fifteen studies (thirteen RCTs and two cohort studies) involving 1046 older participants were included. Meta-analysis showed that HT resulted in better quality of life (MD 2.09, 95% CI [1.33, 2.85], P<0. 01) and physical function (SMD 0.82, 95% [0.36, 1.29], P<0.01) compared with no-gardener; the similar findings showed in BMI (SMD -0.30, 95% [-0.57, -0.04], P = 0.02) and mood tested by self-reported questionnaire (SMD 2.80, 95% CI [1.82, 3.79], P<0. 01). And HT might be conducive on blood pressure and immunity, while all the evidence were moderate-quality judged by GRADE. 

Conclusions: HT may improve physical function and quality of life in older adults, reduce BMI and enhance positive mood. A suitable duration of HT may be between 60 to 120 minutes per week lasting 1.5 to 12 months. However, it remains unclear as to what constitutes an optimal recommendation.

1932-6203
e0263598
Wang, Zhijie
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Zhang, Yu
a851ce00-2181-4b85-bb62-50fcbee83a95
Lu, Shanshan
cc2707bb-597a-4b29-9479-4a4152e0196d
Tan, Linlin
5150c2d1-df6d-4551-b466-91e3927b298a
Guo, Wei
7a10b858-5223-417d-a32c-c3d0e7af8105
Lown, Mark
4742d5f8-bcf3-4e0b-811c-920e7d010c9b
Hu, Xiaoyang
65904b24-3775-4b14-9532-eb703a056655
Liu, Jianping
4699004b-2872-49f2-b2f9-f90a061a29db
Wang, Zhijie
21c94d9a-5a25-4e5b-950c-17dbb765d62c
Zhang, Yu
a851ce00-2181-4b85-bb62-50fcbee83a95
Lu, Shanshan
cc2707bb-597a-4b29-9479-4a4152e0196d
Tan, Linlin
5150c2d1-df6d-4551-b466-91e3927b298a
Guo, Wei
7a10b858-5223-417d-a32c-c3d0e7af8105
Lown, Mark
4742d5f8-bcf3-4e0b-811c-920e7d010c9b
Hu, Xiaoyang
65904b24-3775-4b14-9532-eb703a056655
Liu, Jianping
4699004b-2872-49f2-b2f9-f90a061a29db

Wang, Zhijie, Zhang, Yu, Lu, Shanshan, Tan, Linlin, Guo, Wei, Lown, Mark, Hu, Xiaoyang and Liu, Jianping (2022) Horticultural therapy for general health in the older adults: a systematic review and meta-analysis. PLoS ONE, 17 (2), e0263598, [e0263598]. (doi:10.1371/journal.pone.0263598).

Record type: Article

Abstract

Background: with a pronounced and historically unprecedented tendency of population ageing, research on ageing and related disorders has been increasingly brought into focus. Horticultural therapy (HT), as an important role of social prescribing, has been an integrative for decades. This systematic review and meta-analysis aimed to evaluate HT for general health in older adults. 

Methods: electronic databases including PubMed, Web of Science, ScienceDirect, the Cochrane Library, MEDLINE (Ovid), EMBASE (Ovid), CINAHL (EBSCO), China National Knowledge Infrastructure (CNKI), and the Wanfang database, grey literature databases and clinical trials registers were searched from inception to March 2021. Randomized controlled trials (RCTs), quasi-RCTs (QRCTs) and the cohort studies about HT for adults aged over 60 were included in this study. Outcome measures were physical function, quality of life, BMI, mood tested by self-reported questionnaire and the expression of the immune cells. The study was registered under PROSPERO (CRD42019146184). 

Results: totally, fifteen studies (thirteen RCTs and two cohort studies) involving 1046 older participants were included. Meta-analysis showed that HT resulted in better quality of life (MD 2.09, 95% CI [1.33, 2.85], P<0. 01) and physical function (SMD 0.82, 95% [0.36, 1.29], P<0.01) compared with no-gardener; the similar findings showed in BMI (SMD -0.30, 95% [-0.57, -0.04], P = 0.02) and mood tested by self-reported questionnaire (SMD 2.80, 95% CI [1.82, 3.79], P<0. 01). And HT might be conducive on blood pressure and immunity, while all the evidence were moderate-quality judged by GRADE. 

Conclusions: HT may improve physical function and quality of life in older adults, reduce BMI and enhance positive mood. A suitable duration of HT may be between 60 to 120 minutes per week lasting 1.5 to 12 months. However, it remains unclear as to what constitutes an optimal recommendation.

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Accepted/In Press date: 24 January 2022
e-pub ahead of print date: 10 February 2022
Additional Information: Funding Information: Funding: This study was supported by Scientific Research Project of Shanxi Provincial Health Commission (No. 2020050), and Youth Basic Research Program of Shanxi Province (20210302124087) The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. © 2022 Wang et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Copyright: Copyright 2022 Elsevier B.V., All rights reserved.

Identifiers

Local EPrints ID: 455638
URI: http://eprints.soton.ac.uk/id/eprint/455638
ISSN: 1932-6203
PURE UUID: 50b7d27c-6d59-482a-a3d3-d6d77a25310f
ORCID for Mark Lown: ORCID iD orcid.org/0000-0001-8309-568X
ORCID for Xiaoyang Hu: ORCID iD orcid.org/0000-0002-3143-7999

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Date deposited: 29 Mar 2022 16:50
Last modified: 28 Apr 2022 02:14

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Contributors

Author: Zhijie Wang
Author: Yu Zhang
Author: Shanshan Lu
Author: Linlin Tan
Author: Wei Guo
Author: Mark Lown ORCID iD
Author: Xiaoyang Hu ORCID iD
Author: Jianping Liu

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