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Review
. 2022 Feb;27(1):1-9.
doi: 10.1007/s40519-020-01089-x. Epub 2021 Mar 4.

Quality of information of websites dedicated to obesity: a systematic search to promote high level of information for Internet users and professionals

Alessandra Perra  1 , Antonio Preti  2 , Valerio De Lorenzo  3 , Antonio Egidio Nardi  4 , Mauro G Carta  2
Affiliations
Review

Quality of information of websites dedicated to obesity: a systematic search to promote high level of information for Internet users and professionals

Alessandra Perra et al. Eat Weight Disord. 2022 Feb.

Abstract

Background: The Internet is increasingly used as a source of information. This study investigates with a multidimensional methodology the quality of information of websites dedicated to obesity treatment and weight-loss interventions. We compared websites in English, a language that it is used for the international scientific divulgation, and in Italian, a popular local language.

Methods: Level of Evidence: Level I, systematic review search on four largely used search engines. Duplicated and unrelated websites were excluded. We checked: popularity with PageRank; technological quality with Nibbler; readability with the Flesch Reading Ease test or the Gulpease readability index; quality of information with the DISCERN scale, the JAMA benchmark criteria, and the adherence to the Health on the Net Code.

Results: 63 Italian websites and 41 English websites were evaluated. English websites invested more in the technological quality especially for the marketing, experience of the user, and mobile accessibility. Both the Italian and English websites were of poor quality and readability.

Conclusions: These results can inform guidelines for the improvement of health information and help Internet users to achieve a higher level of information. Users must find benefits of treatment, support to the shared decision-making, the sources used, the medical editor's supervision, and the risk of postponing the treatment.

Keywords: Health literacy; Information dissemination; Internet; Obesity; Quality; Weight-loss.

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Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
Flowchart of search results, with all steps of the procedure
Fig. 2
Fig. 2
Distribution of the adherence to the JAMA benchmark criteria in Italian (top) and English (bottom) websites
Fig. 3
Fig. 3
Distribution of DISCERN-scores combined and averaged across English websites (1 = low, 5 = high). Adapted from Charnock et al. [9]
Fig. 4
Fig. 4
Distribution of DISCERN-scores combined and averaged across Italian websites (1 = low, 5 = high). Adapted from Charnock et al. [9]
See this image and copyright information in PMC

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