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| Epidemiological characteristics of pulmonary tuberculosis in Zhejiang Province from 2016 to 2020 |
| WU Qian, ZHANG Yu, LIU Kui, WANG Wei, CHEN Bin, CHEN Songhua
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| Department of Tuberculosis Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China |
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Abstract Objective To investigate the epidemiological characteristics of pulmonary tuberculosis ( PTB ) incidence and mortality in Zhejiang Province from 2016 to 2020, so as to provide the evidence for formulating the PTB control strategy. Methods The data regarding the PTB patients in Zhejiang Province from 2016 to 2020 were collected from the Tuberculosis Management Information System of the Chinese Disease Control and Prevention Information System. The reported cases and deaths of PTB cases were descriptively analyzed by time, population and regions. Results A total of 129 985 PTB cases were reported in Zhejiang Province from 2016 to 2020, and the overall reported incidence rate of PTB was 45.81/105, with a tendency toward a decline in the reported incidence ( χ2trend=298.899, P<0.001 ) and an annual decline rate of 3.72%. The prevalence rates of rifampicin resistance, positive etiological tests, negative etiological tests and no etiological results were 1.51%, 47.17%, 46.67% and 4.65%, respectively. A total of 546 PTB deaths occurred in Zhejiang Province from 2016 to 2020, and the reported mortality of PTB was 0.19/105, with a tendency towards a decline ( χ2trend=10.818, P<0.001) and an annual decline rate of 11.99%.The prevalence rates of rifampicin resistance, positive etiological tests, negative etiological tests and no etiological results were 1.83%, 82.97%, 13.37% and 1.83%, respectively. The highest reported incidence ( 92.18/105 ) and mortality ( 1.19/105 ) of PTB was found in patients aged 65 years and older, and farmer was the predominant occupation of PTB cases (60 774 cases, 46.75%) and dead PTB cases ( 345 cases, 63.19% ). In addition, the top three cities with the highest incidence of PTB included Quzhou City ( 66.43/105 ), Jinhua City ( 64.24/105 ) and Lishui City ( 53.91/105 ), and the top three cities with the highest mortality of PTB included Quzhou City ( 0.67/105 ), Lishui City ( 0.27/105 ) and Jiaxing City ( 0.26/105 ). Conclusions Both the reported incidence and mortality of PTB appeared a tendency towards a decline in Zhejiang Province from 2016 to 2020; however, the proportion of positive etiological tests increased. Higher attention should be paid to the elderly aged 65 years and older and and farmers, and active screening and health education are recommended; in addition, PTB control requires to be intensified in highly prevalent regions, including Quzhou City, Jinhua City and Lishui City.
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Received: 24 January 2022
Revised: 05 March 2022
Published: 12 May 2022
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