The Impact of Health Literacy on Consumer Knowledge of Mask and Hand Sanitizer Use in Post-Pandemic Korea.

Background/objectives: The COVID-19 pandemic increased people's reliance on masks and hand sanitizers, highlighting the critical role of health literacy (HL) in effectively using these preventive measures. This study aimed to assess how HL influences consumers' comprehension of product labels for masks and hand sanitizers in post-pandemic Korea.

Methods: A cross-sectional online survey was conducted in September 2023 among 500 Korean adults aged 20-69. The participants completed a questionnaire measuring HL and their knowledge of mask and hand sanitizer labels using the Korean Health Literacy Assessment Tool. The respondents were classified into high- and low-literacy groups, and statistical analyses (chi-squared tests, -tests, and logistic regression analyses) were employed to compare label comprehension between the groups.

Results: High HL was observed in 31.6% of participants, demonstrating significantly better label-reading habits, including greater recognition of quasi-drug designations, usage instructions, and safety precautions ( 0.001). The logistic regression analysis revealed that high-HL participants were more likely to correctly identify mask-related information (OR 2.56, 95% CI: 1.69-3.89) and demonstrate hand sanitizer-related knowledge (OR 5.39, 95% CI: 3.31-8.77) than their counterparts. Demographic factors such as age, gender, or education showed no significant associations with label comprehension.

Conclusions: Higher HL is strongly associated with better comprehension of mask and hand sanitizer labels, underscoring its importance in public health communication. Enhancing HL is essential in promoting the safe use of preventive products during health emergencies. Public health initiatives should prioritize improving health literacy to ensure more effective communication and safer practices during future health crises.