Improving Health Literacy: Analysis of the Relationship between Residents’ Usage of Information Channels and Health Literacy in Shanghai, China

Background: This study aimed to examine the relationship between residents’ health literacy (HL) and their use of and trust in information channels. Methods: A community-based cross-sectional health survey utilizing a cluster sampling design was conducted in January 2022. The sample consisted of 1067 residents in Shanghai, China. Those who correctly answered over 80% of the questions were regarded as qualified. The differences in residents’ HL and the dimensions of knowledge HL, lifestyle HL, and skills HL were analyzed based on their use of and trust in traditional media, the internet, and offline activities. Logistic regression was conducted to examine the effects of the usage of these channels on all four types of HL. Results: A total of 27.65% of participants were qualified for HL. The use of traditional media (OR = 1.405, p < 0.05) and engagement in offline activities (OR = 1.951, p < 0.05) were significantly related to HL. Disbelief in traditional media was related to being qualified in knowledge HL (OR = 1.262; p < 0.05), whereas disbelief in offline activities had an adverse effect on knowledge HL and skills HL (OR = 0.700, 0.807; p < 0.05). Conclusion: Effort should be made to improve the efficiency of offline health education, and ensure the reliability and quality of health-related information from mass media and the internet to improve residents’ HL.