title: Prevalence and trends of aminoglycoside resistance in Shigella worldwide, 1999-2010.
abstract: Shigellosis causes diarrheal disease in humans in both developed and developing countries, and multi-drug resistance in Shigella is an emerging problem. Understanding changing resistance patterns is important in determining appropriate antibiotic treatments. This meta-analysis systematically evaluated aminoglycoside resistance in Shigella. A systematic review was constructed based on MEDLINE and EMBASE databases. Random-effect models or fixed-effect models were used based on P value considering the possibility of heterogeneity between studies for meta-analysis. Data manipulation and statistical analyses were performed using software STATA 11.0. By means of meta-analysis, we found a lower resistance to three kinds of aminoglycosides in the Europe-America areas during the 12 year study period than that of the Asia-Africa areas. Kanamycin resistance was observed to be the most common drug resistance among Shigella isolates with a prevalence of 6.88% (95%CI: 6.36%-7.43%). Comparison of data from Europe-America and Asia-Africa areas revealed that Shigella flexneri resistance was greater than the resistance calculated for Shigella sonnei. Importantly, Shigella sonnei has played a significant role in aminoglycoside-resistance in recent years. Similarly, data showed that resistance to these drugs in children was higher than the corresponding data of adults. In conclusion, aminoglycoside-resistant Shigella is not an unusual phenomenon worldwide. Distribution in Shigella resistance differs sharply based on geographic areas, periods of time and subtypes. The results from the present study highlight the need for continuous surveillance of resistance and control of antibiotic usage.
authors.affiliation: Department of Laboratory Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, China; ; National Key Clinical, Department of Laboratory Medicine, Nanjing, Jiangsu 210029, China;
authors.forename: Bing
authors.initials: B
authors.lastname: Gu
authors.forename: Xing
authors.initials: X
authors.lastname: Ke
authors.forename: Shiyang
authors.initials: S
authors.lastname: Pan
authors.forename: Yan
authors.initials: Y
authors.lastname: Cao
authors.forename: Ling
authors.initials: L
authors.lastname: Zhuang
authors.forename: Rongbin
authors.initials: R
authors.lastname: Yu
authors.forename: Huimin
authors.initials: H
authors.lastname: Qian
authors.forename: Genyan
authors.initials: G
authors.lastname: Liu
authors.forename: Mingqing
authors.initials: M
authors.lastname: Tong
keywords: Shigella; aminoglycoside; meta-analysis; patterns; prevalence; resistance; trends
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