<![CDATA[Background: Pulmonary tuberculosis (TB) remains a major public health concern in Indonesia, including Samarinda, where transmission often occurs within families due to close contact with patients. Family-based interventions are essential to strengthen preventive behaviors and reduce transmission risk; however, limited family participation continues to hinder their effectiveness. Purpose: This study aimed to analyze the relationship between family roles and pulmonary TB prevention behavior in the working areas of Karang Asam, Wonorejo, and Loa Bakung Health Centers, Samarinda. Methods: A cross-sectional quantitative design was employed involving 80 respondents selected through purposive sampling. Data on family participation in TB prevention were collected via questionnaires and analyzed using the Chi-Square test. Results: A significant relationship was found between family roles and TB prevention behavior (p = 0.001 < 0.05). Families actively involved in prevention demonstrated better practices, including consistent mask use, maintaining ventilation, and treatment adherence. Conclusion: Family-based interventions play a vital role in TB prevention. Strengthening family education, counseling, and empowerment—alongside collaboration among health workers, community cadres, and policymakers—is crucial. Implementing structured psychoeducation and community engagement strategies can effectively reduce stigma, improve adherence, and enhance TB prevention efforts.]]>
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