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| Epidemiological characteristics of pulmonary tuberculosis in Shaanxi Province from 2016 to 2021 |
| ZHANG Lin, DU Xin, MA Yu, LIU Yini
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| Department for Tuberculosis Control and Prevention, Shaanxi Provincial Center for Disease Control and Prevention, Xi 'an, Shaanxi 710054, China |
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Abstract Objective To understand the epidemiological characteristics of pulmonary tuberculosis (PTB) in Shaanxi Province from 2016 to 2021, so as to provide the basis for improving PTB prevention and control strategies. Methods The incidence data of PTB cases in Shaanxi Province were collected from the Tuberculosis Information Management System of the Chinese Disease Prevention and Control Information System from 2016 to 2021. The temporal, geographical, and demographic distribution characteristics of PTB were described. Results A total of 121 280 PTB cases were reported in Shaanxi Province from 2016 to 2021, with the reported incidence rate decreasing from 56.30/105 in 2016 to 40.98/105 in 2021 (P<0.05). The etiological positivity rate increased from 16.61% in 2016 to 54.37% in 2021 (P<0.05). The average annual number of reported cases peaked in March (1 984.67 cases, accounting for 9.81%), followed by January (1 885.50 cases, accounting for 9.33%), and hit its lowest in October (1 458.50 cases, accounting for 7.22%). The incidence of PTB was relatively high in northern Shaanxi and southern Shaanxi, at 67.99/105 and 64.05/105, respectively, while it was relatively low in Guanzhong Region, at 44.83/105. The incidence rates of Ankang City (85.81/105), Fugu County (73.92/105), and Yulin City (72.20/105) ranked the top three. There were 80 111 male cases and 41 169 female cases of PTB, with a male-to-female ratio of 1.95︰1. The reported incidence rate of males (67.38/105) was significantly higher than that of females (36.61/105), and the difference was statistically significant (P<0.05). Among males, the highest average reported incidence rate was found in the 80 to <85 age group (179.46/105), while among females, the highest was in the 75 to <80 age group (104.38/105). The main occupations were farmers, accounting for 68.87% (83 526 cases). Conclusions The reported incidence rate of PTB in Shaanxi Province showed an overall downward trend from 2016 to 2021, with a high incidence in winter and spring. The epidemic in southern Shaanxi and northern Shaanxi is more severe than in Guanzhong Region of Shaanxi Province. The incidence of PTB is predominantly found among males, the elderly, and farmers.
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Received: 27 May 2024
Revised: 02 August 2024
Published: 22 August 2024
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