Objective To analyze the incidence trend and epidemiological characteristics of pulmonary tuberculosis (TB) in students in Inner Mongolia Autonomous Region and provide a reference for the effective prevention and control of pulmonary TB in students.
Methods The pulmonary TB reporting data in students in Inner Mongolia from 2015 to 2020 were collected from the subsystems of “Infectious Disease Surveillance” and “Tuberculosis Information Management” in Infectious Disease Surveillance and Management System and the population data were collected form Inner Mongolia Statistical Yearbook for the analyses on the spatial, temporal and population distributions of reported pulmonary TB cases in students and the treatment delay of the cases.
Results A total of 405 pulmonary TB cases in students were reported in Inner Mongolia in 2020 with the reported incidence of 13.76/100 000 (405/3 087 700), a decrease of 13.20% compared with 2015 (15.86/100 000, 493/3 109 100). The annual reported incidence peak of pulmonary TB in students was during March–April. The reported incidence during the two months was lower in central area (4.54/100 000) than in eastern area (24.87/100 000) and western area (9.82/100 000). In terms of the constituent ratio of the pulmonary TB cases in all age groups in 2020, the proportion was highest (39.05%, 157/402) in age group 16–18 years (senior high school students), followed by that (32.84%, 132/402) in age group 19–22 years (college students). The delayed treatment rate of the pulmonary TB cases was 56.22% (226/402).
Conclusion The reported incidence of pulmonary TB in students in Inner Mongolia fluctuated irregularly. The cases mainly occurred in age group 16–18 years, and the incidence was slightly higher in eastern area. Therefore, it is necessary to further strengthen the health education and active TB surveillance in schools to prevent the spread of pulmonary TB.
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