ArticleInfection and drug resistance2022
Drug Resistance Patterns and Trends in Patients with Suspected Drug-Resistant Tuberculosis in Dalian, China: A Retrospective Study.
Article in Infection and drug resistance, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 15 citations in OpenAlex.
- Molecular epidemiology of drug resistance and transmission ofMicrobiology spectrum · 2026Article
- Drug-resistant tuberculosis in Lishui, China: first-line drug resistance patterns, trends, and risk factors from a 10-year retrospective study (2015-2024).Frontiers in public health · 2026Article
- Trends and Characteristics of Drug-Resistant Tuberculosis: A Five-Year Study at a Major Specialized Hospital in Guizhou, China (2018-2023).Infection and drug resistance · 2026Article
- Patterns of Drug Resistance and Treatment Outcomes in Drug-Resistant Tuberculosis Patients in Fuyang City: A Three-Year Retrospective Study.Infection and drug resistance · 2026Article
- Drug resistance patterns, trends, and risk factors for multidrug resistance of tuberculosis in Wenzhou, China: a ten-year retrospective analysis (2014-2023).Frontiers in medicine · 2025Article
- Assessing the quality of life in patients with drug-resistant tuberculosis: a cross-sectional study.BMC pulmonary medicine · 2024Article
- Factors associated with unsuccessful treatment outcome for tuberculosis in previously treated patients in Cali, Colombia, during the period 2015-2019Biomedica : revista del Instituto Nacional de Salud · 2023Observational
- The differences in drug resistance between drug-resistant tuberculosis patients with and without diabetes mellitus in northeast China: a retrospective study.BMC infectious diseases · 2023Article
- Drug Resistance and Molecular Characteristics ofJournal of personalized medicine · 2022Article
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6 authors at 1 institution in 1 country.
Funding
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Abstract
Purpose: The emergence of drug-resistant tuberculosis (DR-TB) represents a threat to the control of tuberculosis. This study aimed to estimate the patterns and trends of DR-TB in patients with suspected DR-TB. In addition, risk factors for multidrug-resistant tuberculosis (MDR-TB) were identified among suspected DR-TB patients in Dalian, China. Patients and Methods: A total of 5661 patients with suspected DR-TB from Jan 1, 2013 to Dec 31, 2020 were included in the final analysis. The resistance pattern of all resistant strains was determined by drug susceptibility testing (DST) using the conventional Lowenstein-Jensen Proportion Method (LJ). DR-TB trends were estimated from 2013 to 2020. During the research period, the chi-square test was employed to analyze the significance of linear drug-resistance trends across time. Bivariate and multivariate logistic regression were performed to assess factors associated with MDR-TB. Results: From 2013 to 2020, the resistance rates of rifampicin (RFP) and isoniazid (INH) decreased significantly, whereas the resistance rates of ethambutol (EMB) and streptomycin (SM) increased in patients with suspected DR-TB. From 2013 to 2020, the prevalence of DR-TB decreased in all patients from 34.71% to 28.01% with an average annual decrease of 3.02%. Among new cases, from 2013 to 2020, the prevalence of DR-TB (from 26.67% to 24.75%), RFP-resistant TB (RR-TB) (from 15.09% to 3.00%) and MDR-TB (from 6.08% to 2.62%) showed a significant downward trend. Among patients with a previous treatment history, DR-TB (from 54.70% to 37.50%), RR-TB (from 44.16% to 11.49%) and MDR-TB (from 26.90% to 10.34%) showed a significant downward trend from 2013 to 2020. Males (AOR 1.28, 95% CI 1.035-1.585), patients 45 to 64 years of age (AOR 1.75, 95% CI 1.342-2.284), patients 65 years and older (AOR 1.65, 95% CI 1.293-2.104), rural residents (AOR 1.24, 95% CI 1.014-1.519) and a previous treatment history (AOR 3.94, 95% CI 3.275-4.741) were risk factors for MDR-TB. Conclusion: The prevalence of DR-TB, RR-TB and MDR-TB was significantly reduced from 2013 to 2020. Considerable progress has been made in the prevention and treatment of DR-TB during this period. However, the increasing rate of drug resistance in EMB and SM should be taken seriously. Suspected DR-TB patients who are male, older than 45 years of age, live in rural areas, and have a history of TB treatment should be given priority by health care providers.
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