Environmental hygiene behavior among adolescents is an important indicator in public health promotion and prevention efforts. However, the low level of awareness among adolescents regarding maintaining school environmental hygiene remains a common problem. Health literacy plays a role in enhancing individuals’ ability to understand, evaluate, and apply health information, thereby influencing environmental hygiene behavior. This study aims to analyze the influence of health literacy on environmental hygiene behavior among adolescents in secondary schools. This study uses a quantitative design with a cross-sectional approach. The respondents were Bhakti Mulia Vocational High School, Kediri selected using simple random sampling (n=113). Data were collected using a structured questionnaire that measured health literacy and environmental hygiene behavior. Data analysis was performed using the Pearson product-moment correlation test. The results showed that most respondents had moderate to high levels of health literacy, as well as fairly good environmental hygiene behavior. There is a significant association between health literacy and environmental hygiene behavior (r=0.512; p < 0.05), such that higher health literacy is associated with better environmental hygiene behavior. Health literacy is significantly associated with influences environmental hygiene behavior among adolescents. Efforts to improve health literacy through structured education in schools are needed to support clean and healthy living behaviors.
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