Follow-up Study of Retreatment TB Patients with Sputum Smear and/or Culture Positive Two Years after They were Declared Cured with First-line Anti-TB Drugs in Shandong Province.

This study aimed to learn the recurrence rate in the retreatment TB patients with sputum smear and/or culture positive (ss+ and/or c+) two years after they were declared cured, and to explore causes of recurrence in order to improve long-time treatment outcome. 5 cities were selected as research locations. Recurrence of TB was judged by chest X-ray examination together with sputum smear and culture examination. Questionnaire was carried out to collect data on treatment history, demographics and possible risk factors. Chi-square test and logistic regression were conducted using SPSS in this study. As the result, 99 active TB patients were identified and the recurrence rate was 16.67% and irregular medicine and smoking were the causes of the recurrence. The retreatment TB patients with sputum smear and/or culture positive in this study had higher recurrence rate and health education work on regular medication and smoking should be strengthened.