Epidemiological characteristics of tuberculosis in Nanshan district of Shenzhen, 2005–2016

Objective To understand the epidemiological characteristics of tuberculosis（TB） in Nanshan district of Shenzhen from 2005 to 2016.

Methods Descriptive epidemiological analysis was conducted on the distribution of TB in local residents in Nanshan district during this period. The reported incidence rate of TB was analyzed by using software SPSS 13.0 and the incidence rate was compared with χ² test.

Results The annual average reported incidence rate of TB was 85.72/100 000 in Nanshan district during this period. The annual average reported incidence rate of TB was 101.19/100 000 in males and 67.57/100 000 in females （χ²＝423.111, P＝0.000）. Patients were mainly young adults, and the incidence showed an increase in those aged ＞45 years. The TB cases were mainly distributed in workers, the jobless/unemployed and staff. The incidence in workers was in decline, but the incidence in staff was in increase. The seasonality of TB epidemic was obvious, the annual cases were mainly reported during March - May and in September.

Conclusion After taking a variety of prevention and control measures, the reported incidence rate of TB showed a decline trend in Nanshan district from 2005 to 2016, and it declined to 52.86/100 000 in 2016. The TB epidemic was effectively controlled.