Recurrent Pulmonary Tuberculosis in China, 2005 to 2021

医学 肺结核 回顾性队列研究 儿科 内科学 队列 肺结核 疾病 病理
作者
Tao Li,Bo Zhang,Xin Du,Shaojun Pei,Zhongwei Jia,Yanlin Zhao
出处
期刊:JAMA network open [American Medical Association]
卷期号:7 (8): e2427266-e2427266 被引量:4
标识
DOI:10.1001/jamanetworkopen.2024.27266
摘要

Importance Despite posing a significant challenge to global tuberculosis (TB) elimination efforts, recurrent TB remains understudied due to the challenges of long-term observation. Objective To investigate the burden of recurrent TB using data from patients with pulmonary TB (PTB) in China. Design, Setting, and Participants This retrospective cohort study included all bacteriologically confirmed or clinically diagnosed PTB cases reported to the Tuberculosis Information Management System with completed or successful treatment outcomes from January 1, 2005, to December 31, 2021. Data were analyzed from July 15, 2022, to October 28, 2023. Exposures Newly diagnosed PTB was classified into primary, hematogenous disseminated, or secondary PTB. Main Outcomes and Measures The primary outcome was the annual recurrence rate, stratified by disease classification, over the 17-year observation period. The recurrence rate for year n was calculated by dividing the number of patients with recurrent TB in year n by observed person-years in year n . The secondary outcome was the annual proportion of recurrent TB among reported cases and associated risk factors. Results Of 13 833 249 patients with TB reported to the Tuberculosis Information Management System, 10 482 271 with PTB met the inclusion criteria. Of these, 68.9% were male, 22.3% were 65 years or older, 89.6% were of Han ethnicity, and 68.4% were agricultural workers. A total of 413 936 patients experienced a recurrent TB episode after successful treatment, resulting in an overall recurrence rate of 0.47 (95% CI, 0.47-0.48) per 100 person-years. The recurrence rate for patients with primary PTB was 0.24 (95% CI, 0.22-0.26) per 100 person-years; for hematogenous disseminated PTB, 0.37 (95% CI, 0.36-0.38) per 100 person-years; and for secondary PTB, 0.48 (95% CI, 0.47-0.48) per 100 person-years. The cumulative proportion of recurrences within the first 2 years accounted for 48.9% of all recurrent cases. The proportion of recurrent cases among notified incident cases increased 1.9-fold from 4.7% in 2015 to 8.8% in 2021. Among other factors, ages 45 to 64 years (adjusted hazard ratio, 1.77 [95% CI, 1.65-1.89]) and having completed treatment (adjusted hazard ratio, 1.16 [95% CI, 1.14-1.18]) were identified as associated with recurrence. Conclusions and Relevance In this retrospective cohort study, the PTB recurrence rate was substantially higher than the incidence, and the proportion of recurrent cases increased. Almost half of the recurrence occurred within the first 2 years, suggesting that routine posttreatment follow-up may represent an important strategy for accelerating TB elimination.
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