Yulia Safarina Pakaya; Hanim Mufarokhah
Pulmonary tuberculosis is an infectious disease that remains a public health problem, especially in developing countries such as Indonesia. The transmission of this disease can be prevented through appropriate behavior, which is influenced by the level of individual knowledge. This study aims to determine the relationship between knowledge level and preventive behavior of pulmonary tuberculosis transmission among patients at a public health center. This study used a quantitative method with a cross-sectional design. The sample consisted of 20 respondents selected using total sampling technique. The research instrument was a questionnaire measuring knowledge and behavior. Data were analyzed using the Chi-Square test. The results showed that most respondents had a good level of knowledge (50.0%) and good preventive behavior (60.0%). The Chi-Square test showed a p-value of 0.000 (p < 0.05), indicating a significant relationship between knowledge level and preventive behavior of pulmonary tuberculosis transmission. In conclusion, there is a significant relationship between knowledge level and preventive behavior, indicating that improving knowledge is essential in preventing tuberculosis transmission.