Abstract
Background
From disease prevention to health promotion, communication is key for Public Health (PH) practice and, according to the 9th Essential Public Health Operation its goal is to improve populations health literacy and capacity to access, understand and use information. Though social media is frequently presented as a potentially useful tool for PH communication, there is a lack of evidence about its effectiveness and impact on PH outcomes. This study researches Instagram® as a PH tool and aims to know who is using it, what content is shared on the platform and how much engagement there is.
Methods
This cross-sectional study regards information on 1000 Instagram® posts with the hashtags publichealth, publichealthpromotion, healthpromotion, publichealthmatters and publichealtheducation. Authors categorized post content and creators, and reviewed the number of likes and comments per post to determine engagement. Data analysis was performed on IBM SPSS® Statistics.
Results
The most common content categories were communicable diseases (n = 383), non-communicable diseases (n = 258) and healthy lifestyles (n = 143). Health professionals post more about communicable diseases (43,6%) and non-professionals about healthy lifestyles (36,1%). Non-professionals (n = 191) post about PH issues almost as much as health professionals (n = 220) and PH associations (n = 201). Most don't reference their sources (n = 821). Posts on communicable diseases have the most likes and comments per post (mean of 172 likes and 3,1 comments).
Conclusions
Half the Instagram® posts analysed in this study were made by health professionals or organizations. Communicable diseases, non-communicable diseases and healthy lifestyles were the most frequent content categories and had the most engagement. The majority of posts didn't reference their sources. Though Instagram® seems to be a potential PH communication tool, further research is needed to confirm its benefits for PH.
Key messages
Social media platforms like Instagram® are potentially powerful tools for PH communication. There is a need to understand the efficacy of social media as health promotion tools.
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