• J Eval Clin Pract · Dec 2021

    Review Meta Analysis

    Health education interventions to promote health literacy in adults with selected non-communicable diseases living in low-to-middle income countries: A systematic review and meta-analysis.

    • Martin Heine, Frandene Lategan, Misha Erasmus, Chris-Mari Lombaard, Nina Mc Carthy, Jeandri Olivier, Marnus van Niekerk, and Susan Hanekom.
    • Institute of Sport and Exercise Medicine, Division of Orthopaedics, Department of Surgical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
    • J Eval Clin Pract. 2021 Dec 1; 27 (6): 1417-1428.

    Rationale, Aims And ObjectivesHealth illiteracy is an important contributor to the burden of non-communicable diseases (NCDs); in particular in settings where health illiteracy is part of a perpetuating system of risk factors. Interventions that promote health literacy may provide an important tool in the primary and secondary prevention of NCDs. The objective of this systematic review was to evaluate the effectiveness of health literacy interventions on health literacy in the management of patients with selected NCDs living in low-to-middle income countries (LMIC).MethodsSeven electronic databases were searched (October 29, 2020) for RCTs aimed at improving health literacy in adults with NCDs in LMICs. Eligible NCDs included those pertaining to cancer, cardiovascular disease (CVD), chronic respiratory disease (CRD) or Diabetes. Studies were included that explicitly focussed on improving health literacy, and reported comprehensive measures of health literacy, or components thereof (ie, knowledge, attitude or behaviour). Random-effect meta-analyses were conducted for continuous outcome measures (Hedges-g).ResultsThe completed search yielded 2573 unique results of which 53 unique studies met the inclusion criteria. Studies included patients with cancer (n = 1, 2%), CRD (n = 8, 15%), CVD (n = 11, 21%) or Diabetes (n = 33, 62%). A significant (P < .01) summary effect was found for disease knowledge (SES = 1.27 [n = 23, 95%CI = 1.05-1.49]), attitude (SES = 1.17 [n = 20, 95%CI = 0.88-1.47]), and behaviour (SES = 1.20 [n = 31, 95%CI = 0.94-1.46]).ConclusionsThese results support the conclusion that there is compelling evidence, in particular, for patients with Diabetes, that health-literacy interventions are effective in promoting disease knowledge, attitude and behaviour across four chronic conditions that drive the burden of NCDs.© 2021 John Wiley & Sons Ltd.

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