ABSTRACT
Objective@#To provide the evidence for tuberculosis pvevalence for high school freshmen by analyzing data of entrance physical exarnination of Chongqing in 2018.@*Methods@#The TB information management system of schools in Chongqing was used to collect the data of TB physical examination for high school freshmen in 2018. Excel 2007 was used to establish database, SPSS 25.0 software was used for statistical analysis, including descriptive analysis, chi square test.@*Results@#In 2018, a total of 118 370 freshmen from 146 general education high schools and a total of 30 842 freshmen from 30 secondary vocational schools had TB screening during physical examination for freshmen. The proportion of school and freshmen participating in the TB examination was 40.09% and 44.28% respectively. The rates of school (57.03%) and freshmen (58.81%) participating in the examination of tuberculosis in senior high school students of general education were higher than those in secondary vocational education schools(16.39%, 22.73%), the difference was statistically significant(χ2=73.38, 42 744.64, P<0.01). 84 cases of active pulmonary tuberculosis (APTB) were detected in the physical examination of high school freshmen, mainly smear negative patients (92.86%)，and there was no significant difference in the prevalence of tuberculosis among the freshmen with different education, school and screening methods(P>0.05). The detection rates of TB among freshmen in general education and vocational education were 49.00/100 000 and 54.62/100 000 respectively. The detection rates of tuberculosis among freshmen in public schools and private schools were 50.29/100 000 and 124.88/100 000 respectively(χ2=5.42, 10.92, P<0.05). The detection rate of direct chest X-ray examination was 62.90/100 000. The first screening method was PPD test and the detection rate of chest X-ray examination was 84.30/100 000 for those with strong positive PPD test, the differences was no significant(χ2=0.29, P>0.05).@*Conclusion@#The tuberculosis screening program for high school freshmen is of great significance to the prevention and control of tuberculosis. Effective screening methods should be adopted and strengthened in secondary vocational schools.