Analysis of tuberculosis screening results in schools of Guizhou Province in 2021
Objective To understand the situation of pulmonary tuberculosis(TB)screening in schools of various levels and types in Guizhou Province,and to provide a scientific basis for strengthening the proactive detection and effective prevention and control measures for TB in key age groups in schools.Methods In 2021,proactive screening and entrance physical examination were conducted for new students and faculty members in Guizhou Province."Tuberculosis Screening Questionnaire for Schools in Guizhou Province"was filled out,and the physical examination information was uploaded through the"Healthy Guizhou Smart Disease Control Cloud Platform".According to the Prevention and Control Guidelines of China's Learning Schedule(2020 edition),different screening methods were adopted for different physical examination subjects.The main screening methods included three types,namely tuberculin skin test,chest X-ray examination(X-ray chest X-ray),and investigation of suspicious symptoms of pulmonary tuberculosis.Results A total of 1 789 108 students from 18 192 schools were screened,including 1 739 680 new students who underwent physical examinations,16 922 students who underwent middle and high school entrance examinations,and 32 506 teachers and staff who underwent physical examinations.In 2021,the reported TB incidence rate in Guizhou Province was 85.40 per 100 000,with the highest rates reported in Bijie City,Qiannan Prefecture,and Zunyi City.Symptom screening was conducted for 58 380 individuals across nine cities and prefectures,of which 3 440 individuals(5.89％)presented with suspicious symptoms;PPD tests were conducted for 1 180 442 individuals,with 22 175 cases(1.88％)testing strongly positive;chest X-ray screening involved 366 170 individuals,with 2 837 individuals(0.77％)showing abnormal chest radiographs.The proportion of individuals with suspicious symptoms in public schools(8.11％)was higher than in private schools(1.63％);non-boarding schools had a higher proportion of individuals with suspicious symptoms(6.06％)compared to boarding schools(5.46％).Among the different school types,vocational schools had the highest proportion of individuals with suspicious symptoms(9.09％),while vocational high schools had the lowest(0.32％);these differences were statistically significant(x2=994.19,7.69,and 1 257.5,all P＜0.01).The proportion of strong positive students in boarding schools(2.15％)was higher than that in non-boarding schools(1.32％),with a statistically significant difference(x2=981.40,P＜0.01);among school types,universities had the highest rate of strong positivity(6.61％),while kindergartens had the lowest(0.59％),with statistically significant differences(x2=10 707.60,P＜0.01).Among different school types,nine-year schools(elementary and junior high)had the highest proportion of abnormal chest radiographs(4.09％),while ordinary secondary vocational schools had the lowest(0.08％),with statistically significant differences(x2=1 418.191,P＜0.01).Conclusions Carrying out physical examination and screening for admission is one of the important measures to reduce the tuberculosis epidemic in schools.The proactive screening work in Guizhou Province needs to be further implemented to achieve full coverage.It is necessary to strengthen the proactive detection of schools in high epidemic areas,especially the screening efforts and health education for key populations such as universities and high schools,to curb the occurrence of TB epidemic in schools.
Teachers and studentstuberculosisphysical examination screeningGuizhou Province
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