Abstract:

Objective: To analyze the characteristics and treatment outcomes of pulmonary tuberculosis (PTB) in floating population in Tongzhou District of Beijing, so as to provide reference for formulating TB prevention and control strategies. Methods: Data of 3202 PTB cases of floating population in Tongzhou District of Beijing from 2012 to 2021 was collected through Tuberculosis Management Information System of China Information System for Disease Control and Prevention, which included gender, age, occupation, case source, treatment classification, treatment outcomes and so on. Descriptive statistics was used to analyze the patients’ characteristics, treatment and outcomes. The seasonal effect of time series was analyzed by using seasonal index. Results: From 2012 to 2021, a total of 4996 cases of PTB patients were registered in Tongzhou District of Beijing, among which 3202 cases were from floating population, accounting for 64.09% of total cases. The incidence of PTB patients of floating population increased from 34.48/100000 in 2012 to 62.36/100000 in 2016 ( {\chi }_{\mathrm{t}\mathrm{r}\mathrm{e}\mathrm{n}\mathrm{d}}^2=32.913,P<0.001), and then decreased to 37.80/100000 in 2021 ( {\chi }_{\mathrm{t}\mathrm{r}\mathrm{e}\mathrm{n}\mathrm{d}}^2=15.061,P<0.001). The male-female ratio of patients was 1.75∶1. The main age group was 15-44 years old (79.17% (2535/3202)). The main occupation was housekeepers/unemployed people (41.41% (1326/3202)). The main source of patients was people refered from general hospitals (65.46% (2096/3202)), and the patients were generally delayed for health care visit (37.76% (1209/3202)). Most patients came from Hebei Province (22.49% (720/3202)) and Heilongjiang Province (9.81% (314/3202)). All patients received full-course supervision and management. The overall treatment success rate was 94.38% (3022/3202), while 85 cases (2.65%) defaulted, 12 cases (0.37%) died, and 36 cases (1.12%) developed multidrug-resistant TB. Conclusion: The epidemic of PTB among the floating population in Tongzhou District of Beijing were mainly male, young adults, housekeepers/unemployed and had high visit delay rates and differenciated regional distribution, thus corresponding prevention and control strategies should be formulated according to these epidemic characteristics.

Key words: Tuberculosis, pulmonary, Floating population, Treatment outcome, Epidemiological characteristics (topic)