Objective: to determine the effectiveness of microlearning in improving an individual's capability to self-care.Study design: Systematic review of the literature Background: The routine adoption of health seeking self-care behaviours can prevent or delay the appearance of various lifestyle diseases including type 2 diabetes and cardiovascular disease. Microlearning delivers complex knowledge in fragments or bite-size 'nuggets' of information and has been applied as a novel intervention to improve individual's self-care capabilities. The aim of this research was to systematically review the literature to determine the effectiveness of microlearning in improving individual self-care capability.Methods: A search was conducted on 15 July 2019 across 5 electronic bibliographic databases: EMBASE, MEDLINE, PsycINFO, CINAHL and Scopus. Randomised and non-randomised controlled trials, controlled before-after studies and interrupted time series studies, published between 1 January 1990 to 15 July 2019 and looking at individuals of all ages were included in the search. The search strategy included a keyword search and a string of "(modality) AND (learning) AND (micro)", which broadly described microlearning to cover all available articles that have used micro-format learning interventions. The search was combined with keywords and MeSH terms for self-care to identify studies of interests. Studies were screened by two reviewers independently and reported using a PRISMA flowchart. Data from included articles were extracted using Cochran Data Collection Form. Risk of bias was assessed using Version 2 of the Cochrane Risk-of-bias or Risk Of Bias In Non-Randomized Studies of Interventions.Results: 1310 articles were identified in the initial search. A total of 26 manuscripts were included in the narrative synthesis after title and abstract and full text screening was performed by two reviewers. Outcomes of studies were categorized. A total of 23 studies measured cognitive level self-care capabilities changes, and 91% showed statistically significant improvements. Only 11 studies measured actual self-care behaviour changes, from which only 36% showed statistically significant results. From the 26 manuscripts included, 25 articles were evaluated as having moderate to high risk of bias.
Conclusion:Under certain conditions, or when combined with monitoring such as tracking daily medicine intake, microlearning can be effective in improving actual selfcare behaviours. Microlearning can also positively influence individuals' cognitive selfcare capabilities but was largely ineffective in triggering actual self-care behaviour change. More studies are needed to investigate the effectiveness of microlearning in improving self-care capabilities amongst the general population at scale.