Highlights
- •Only 77% of RR-TB cases were MDR-TB; thus RR-TB cannot predict INH resistance in China.
- •Greater MDR-TB prevalence was seen in previously treated versus new RR-TB cases.
- •The prevalence of RR-TB exhibited great diversity across regions in China.
Summary
Objectives
Systematic review of multidrug-resistant tuberculosis (MDR-TB) prevalence among rifampicin
(RIF)-resistant tuberculosis (RR-TB) patients in 34 provinces of China was conducted
to correlate RIF resistance with concurrent isoniazid (INH) resistance.
Methods
Database searches (PubMed, Embase, China National Knowledge Infrastructure, Chinese
Scientific Journal, Wanfang), identified drug resistance surveillance studies conducted
between January 1, 2000 and June 30, 2018. Of 1554 records, random-effects meta-analysis
of 34 studies of adequate methodological quality yielded 108,366 TB cases for MDR-TB
prevalence analysis of RR-TB cases.
Results
MDR-TB prevalence among RR-TB cases varied from 57% (Xinjiang; 95% CI 47%, 67%) to
95% (Taiwan; 95% CI 92%, 98%), for a pooled national rate of 77% (95% CI 75%, 80%).
Subgroup and meta-regression analyses revealed greater MDR-TB prevalence in previously
treated versus new RR-TB cases (P < 0.001), with no significant differences of regional initial drug resistance rates
or sampling methods. Regional MDR-TB prevalence among RR-TB cases was lowest (69%)
in the Northeast Region (95% CI 65%, 73%) and highest (90%) in Hong Kong, Macao and
Taiwan (95% CI 81%, 98%).
Conclusions
In China, ∼77% of RR-TB cases are MDR-TB. Thus, RIF resistance cannot effectively
predict MDR-TB. Highly variable RR-TB prevalence across China warrants improved TB
management.
Keywords
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Article info
Publication history
Published online: August 07, 2019
Accepted:
August 4,
2019
Identification
Copyright
© 2019 The British Infection Association. Published by Elsevier Ltd. All rights reserved.