Abstract:

Objective: To analyze the the status of active detection of pulmonary tuberculosis among students in Guangzhou from 2017 to 2020, and provide suggestions for pulmonary tuberculosis prevention and control in schools. Methods: The total number of pulmonary tuberculosis patients in schools were collected from 2017 to 2020, as well as the gender, age, school distribution, disease classification, time of onset, detection methods and other data of the patients were collected from “Tuberculosis Information Management System”, the sub-systems of “China Disease Control and Prevention Information Management System”. Descriptive analysis was used to analyze the detection rate, distribution characteristics and delay of pulmonary tuberculosis in students from two active detection methods, physical examination and close contact screening. Results: From 2017 to 2020, 316 and 175 cases of pulmonary tuberculosis were found through physical examination and close contact screening in Guangzhou, the detection rates were 29.92/100000 (316/1055991) and 135.40/100000 (175/129242) respectively, which were significantly higher than the overall detection rate among student in the same period (16.76/100000 (2054/12258359))(χ²=94.731, P<0.001; and χ²=1000.774, P<0.001, respectively). The school type distribution of cases were 5 (1.58%, 5/316) at primary school or below, 44 (13.92%, 44/316) at junior middle schools, 157 (49.68%, 157/316) at senior middle schools and 110 (34.81%, 110/316) at college or above found in health examination, and were 6 (3.43%, 6/175), 10 (5.71%, 10/175), 61 (34.86%, 61/175) and 98 (56.00%, 98/175) found by close contact screening. The median delay time of cases found in physical examination and close contact screening were 24.00 (10.00, 55.75) d and 18.00 (6.00, 40.00) d, respectively. The delay rates were 31.01% (98/316) and 25.71% (45/175), respectively, both were significantly lower than the overall delay rate (40.56% (833/2054);χ²=11.424, P<0.01; χ²=15.708, P<0.01). Conclusion: The high detection rate and short detection time of tuberculosis were found in the active detection method of physical examination and close contact screening. The implementation of relevant measures should be actively promoted and improved.

Key words: Tuberculosis,pulmonary, Students, Cross-sectional studies