Belief that Progress has Been Made in Curing Cancer Varies by Perception of Social Media Health Mis- and Disinformation, Education, Frequency of Social Media Use, and Healthcare System Trust: A Cross-Sectional Study.

Objective: This study explored the relationship between perceptions of health mis/disinformation on social media and belief that progress has been made in curing cancer.

Methods: We analyzed cross-sectional, retrospective data collected from 4246 adult social media users in the 2022 Health Information National Trends Survey (HINTS 6). The outcome variable was the belief in whether progress has been made in curing cancer. The primary predictor variable was the perception of health mis/disinformation on social media, categorized as 'Substantial' and '< Substantial'. We also examined whether the relationship varied by health care system trust, frequency of social media use, and education. The analysis controlled for demographic, socioeconomic, and health-related factors.

Results: Perception of substantial social media health mis- and disinformation was associated with a lower likelihood of believing progress has been made in curing cancer (odds ratios = 0.74, 95% CI = 0.59-0.94). Persons who perceived substantial social media health mis-and disinformation and had low trust in the health care system were less likely to believe progress has been made in curing cancer: 36% (95% CI: 28-45%). Persons who perceived substantial social media health mis-and disinformation and used social media less than daily were less likely to believe progress has been made in curing cancer: 44% (95% CI: 36-52%). Persons without a college degree who perceived substantial social media health mis-and disinformation were less likely to agree that progress has been made in curing cancer: 44% (95% CI: 39-50%).

Conclusion: Exposure to misinformation on social media may be associated with negative attitudes about advances in curing cancer, particularly among social media users with low trust in the health care system trust, less frequent social media users, or those without a college degree.