- Gareth J. Hollands, Juliet A. Usher-Smith, Rana Hasan, Florence Alexander, Natasha Clarke, Simon J. Griffin. Visualising health risks with medical imaging for changing recipients’ health behaviours and risk factors: Systematic review with meta-analysis. PLOS Medicine, 2022; 19 (3): e1003920 DOI: 10.1371/journal.pmed.1003920
Non-communicable diseases are estimated to account for over two-thirds of deaths worldwide each year and are linked to behaviors such as smoking, poor diet, and lack of physical exercise. Behavior change can reduce risks and many interventions intend to motivate such change. Researchers are keen to understand whether the growing use of medical imaging technologies could help.
Gareth Hollands and colleagues at the University of Cambridge, UK conducted a meta-analysis of 21 randomized controlled trials involving over 9,000 adult participants. Participants were either shown visual examples of personalized risk information following an imaging procedure, such as computed tomography, ultrasound, or radiography, in addition to health information or advice, or they received health information or advice with no visual feedback. The trials reported on behaviors including smoking, medication use, physical activity, diet, oral hygiene, sun protection, tanning booth use, blood glucose testing, skin self-examination, and foot care.
The strongest evidence was for smoking reduction, a healthier diet, increased physical activity, and increased oral hygiene behaviors. Single studies also reported increased skin self-examination and foot care following visualized feedback. The other behaviors were improved by visual interventions, but results were not statistically significant. The authors conclude that the growth of medical imaging technology could be capitalized on to help people change and reduce disease risks.
Hollands adds, “Medical imaging scans are used ever more widely by healthcare professionals. By gathering together the existing research, this study suggests that showing the scan results to patients to highlight the state of their health could motivate them to behave in a healthier way.”
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Seeing is believing when it comes to health risk and behavior change