Level and related factors of latent tuberculosis infection in junior and senior high school freshmen in Lanzhou from 2023 to 2024
10.16835/j.cnki.1000-9817.2026061
- VernacularTitle:兰州市2023和2024年中学新生结核潜伏感染水平及相关因素
- Author:
FANG Qian, ZHANG Li, QIAO Xiaowei, WANG Yuhong, JIA Juanli, HOU Yan
1
Author Information
1. Tuberculosis Prevention and Control Department, Lanzhou Center for Disease Control and Prevention, Lanzhou 730030, Gansu Province, China
- Publication Type:Journal Article
- Keywords:
Tuberculosis;
Infection;
Regression analysis;
Students
- From:
Chinese Journal of School Health
2026;47(2):287-290
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the current status of latent tuberculosis infection (LTBI) among freshmen in junior and senior high schools in Lanzhou, so as to provide scientific basis for improving the tuberculosis prevention and control strategy in schools.
Methods:The screening results of 74 516 freshmen in senior and boarding junior high schools in Lanzhou during 2023 and 2024 were collected. The Chi square test and multivariate Logistic regression model were applied to analyze LTBI level, strongly positive risk for tuberculin skin test (TST) and related factors of the freshmen.
Results:During 2023 and 2024, the screening rate of tuberculosis among freshmen in senior and boarding junior high schools in Lanzhou was 93.45%, of which the positive rate for TST was 5.71%, the infection rate for LTBI was 3.80%, and the strongly positive rate for TST was 1.24%. There were statistically significant differences in the screening rate of tuberculosis among freshmen in different years, grades, regions, school types and districts ( χ 2=5.34, 2 463.88, 3 516.13, 132.34, 4 436.56, all P <0.05). Multivariate Logistic regression analysis showed that senior high schools ( OR =1.62, 2.18) and urban areas ( OR =2.08, 3.07 ) were all related factors for LTBI and strong positivity for TST among freshmen; schools located in Xigu District, Honggu District, Yongdeng County, Yuzhong County, and Lanzhou New Area ( OR =3.57, 5.67, 9.12, 3.70, 3.64) were related factors of strong positivity for TST among freshmen (all P <0.05).
Conclusions:The LTBI level among freshmen in senior and boarding junior high schools in Lanzhou is relatively low. Grades and regions are related factors for LTBI and strong positivity for TST.
