Abstract: Objective To understand the medication adherence of pulmonary tuberculosis patients in Huizhou City,and explore its influencing factors. Methods A survey questionnaire was developed based on the Information-Motivation-Behavioral skills model （IMB）. Convenience sampling was utilized to recruit participants from Huizhou Tuberculosis Prevention and Control Research Institute from March to April 2022 to examine their medication adherence during treatment. A logistic regression model was employed to analyze the factors influencing medication adherence. Results Among the 269 participants,the mean age was （46.64±16.47） years old,with 171 males （63.6%） and 98 females （36.4%）. The medication adherence rate was 83.6% （225/269）. The results of the multivariate logistic regression analysis revealed that a higher level of knowledge regarding treatment information （OR = 1.19） and self-efficacy （OR = 2.91） were associated with improved medication adherence among patients. Conversely,a higher level of perceived barriers （OR = 0.76） was linked to poorer medication adherence in patients. Conclusions The medication adherence of pulmonary tuberculosis patients in Huizhou City is good overall,and the main influencing factors are the level of knowledge regarding treatment information,self-efficacy,and perceived barriers. In the future,interventions such as health education and doctor-patient communication can be strengthened to improve patients' medication adherence.

Key words: Pulmonary tuberculosis, IMB model, Medication adherence