Skip to main content

Research Repository

Advanced Search

Potential factors that influence usage of complementary and alternative medicine worldwide: a systematic review

Tangkiatkumjai, Mayuree; Boardman, Helen; Walker, Dawn-Marie

Potential factors that influence usage of complementary and alternative medicine worldwide: a systematic review Thumbnail


Mayuree Tangkiatkumjai

Dawn-Marie Walker


Objectives: To determine similarities and differences in the reasons for using or not using complementary and alternative medicine (CAM) amongst general and condition-specific populations, and amongst populations in each region of the globe. Methods: A literature search was performed on Pubmed, ScienceDirect and EMBASE. Keywords: ‘herbal medicine’ OR ‘herbal and dietary supplement’ OR ‘complementary and alternative medicine’ AND ‘reason’ OR ‘attitude’. Quantitative or qualitative original articles in English, published between 2003 and 2018 were reviewed. Conference proceedings, pilot studies, protocols, letters, and reviews were excluded. Papers were appraised using valid tools and a ‘risk of bias’ assessment was also performed. Thematic analysis was conducted. Reasons were coded in each paper, then codes were grouped into categories. If several categories reported similar reasons, these were combined into a theme. Themes were then analysed using χ2 tests to identify the main factors related to reasons for CAM usage. Results: 231 publications were included. Reasons for CAM use amongst general and condition-specific populations were similar. The top three reasons for CAM use were: (1) having an expectation of benefits of CAM (84% of publications), (2) dissatisfaction with conventional medicine (37%) and (3) the perceived safety of CAM (37%). Internal health locus of control as an influencing factor was more likely to be reported in Western populations, whereas the social networks was a common factor amongst Asian populations (p < 0.05). Affordability, easy access to CAM and tradition were significant factors amongst African populations (p < 0.05). Negative attitudes towards CAM and satisfaction with conventional medicine (CM) were the main reasons for non-use (p < 0.05). Conclusions: Dissatisfaction with CM and positive attitudes toward CAM, motivate people to use CAM. In contrast, satisfaction with CM and negative attitudes towards CAM are the main reasons for non-use.

Journal Article Type Article
Acceptance Date Nov 12, 2020
Online Publication Date Nov 23, 2020
Publication Date 2020-12
Deposit Date Jan 4, 2021
Publicly Available Date Jan 4, 2021
Journal BMC Complementary Medicine and Therapies
Print ISSN 2662-7671
Electronic ISSN 2662-7671
Publisher BioMed Central
Peer Reviewed Peer Reviewed
Volume 20
Issue 1
Article Number 363
Public URL
Publisher URL


You might also like

Downloadable Citations