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To analyze the epidemiological characteristics and trends of drug-resistant tuberculosis (DR-TB) patients in Guizhou Province from 2016 to 2023, providing scientific evidence and support for DR-TB prevention and control strategies.
Using the “Tuberculosis Management Information System”, a subsystem of the “Chinese Disease Prevention and Control Information System”, descriptive epidemiological methods were employed to analyze the epidemiological characteristics and trends of DR-TB patients in Guizhou Province.
A total of 3 580 DR-TB patients were reported in Guizhou Province from 2016 to 2023; the male-to-female ratio was 2.15:1, with 2 976 cases (77.12%) among the Han ethnic group. The age group of 40-60 years accounted for the highest proportion, with 1 507 cases (42.09%). Compared to 2016, the proportion of patients aged 60 and above increased in 2023 (24.23% vs. 10.56%). Farmers represented the majority of the patients, totaling 1 844 cases (51.51%). The top three regions were Bijie city (676 cases, 18.88%), Guiyang city (571 cases, 15.95%), and Tongren city (531 cases, 14.83%). Compared to 2016, the proportions in Bijie and Tongren cities increased in 2023 (20.52% vs. 9.94%and 11.34% vs. 3.72%, respectively). The predominant drug resistance type was rifampicin resistance (98.41%), while the proportion of multidrug-resistant cases decreased in 2023 compared to 2016 (45.88% vs. 98.14%), and the proportion of pre-extensively drug-resistant cases increased (7.32% vs. 0%). The top three categories of registration were new patients, treatment failures, and relapses, with 1 317 cases (26.79%), 893 cases (24.94%), and 874 cases (24.41%), respectively. Compared to 2016, the proportions of new patients and relapses increased in 2023 (44.85% vs. 6.83% and 30.10% vs. 18.63%).
The prevention and control efforts for DR-TB in Guizhou Province from 2016 to 2023 have achieved certain results, but the situation remains severe. Future work should focus on continuously improving the application of molecular biological testing technologies, reducing relapses, optimizing resource allocation, and strengthening prevention and control measures for key populations and regions, ensuring timely and effective diagnosis and treatment services across all areas.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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