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Global etiology of bacterial meningitis: A systematic review and meta-analysis

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  • Anouk M Oordt-Speets
  • Renee Bolijn
  • Rosa C van Hoorn
  • Amit Bhavsar
  • Moe H Kyaw

Abstract

Bacterial meningitis is a global public health concern, with several responsible etiologic agents that vary by age group and geographical area. The aim of this systematic review and meta-analysis was to assess the etiology of bacterial meningitis in different age groups across global regions. PubMed and EMBASE were systematically searched for English language studies on bacterial meningitis, limited to articles published in the last five years. The methodological quality of the studies was assessed using a customized scoring system. Meta-analyses were conducted to determine the frequency (percentages) of seven bacterial types known to cause meningitis: Escherichia coli, Haemophilus influenzae, Neisseria meningitidis, Streptococcus pneumoniae, group B Streptococcus agalactiae, Staphylococcus aureus, and Listeria monocytogenes, with results being stratified by six geographical regions as determined by the World Health Organization, and seven age groups.Of the 3227 studies retrieved, 56 were eligible for the final analysis. In all age groups, S. pneumoniae and N. meningitidis were the predominant pathogens in all regions, accounting for 25.1–41.2% and 9.1–36.2% of bacterial meningitis cases, respectively. S. pneumoniae infection was the most common cause of bacterial meningitis in the ‘all children’ group, ranging from 22.5% (Europe) to 41.1% (Africa), and in all adults ranging from 9.6% (Western Pacific) to 75.2% (Africa). E. coli and S. pneumoniae were the most common pathogens that caused bacterial meningitis in neonates in Africa (17.7% and 20.4%, respectively). N. meningitidis was the most common in children aged ±1–5 years in Europe (47.0%). Due to paucity of data, meta-analyses could not be performed in all age groups for all regions.A clear difference in the weighted frequency of bacterial meningitis cases caused by the different etiological agents was observed between age groups and between geographic regions. These findings may facilitate bacterial meningitis prevention and treatment strategies.

Suggested Citation

  • Anouk M Oordt-Speets & Renee Bolijn & Rosa C van Hoorn & Amit Bhavsar & Moe H Kyaw, 2018. "Global etiology of bacterial meningitis: A systematic review and meta-analysis," PLOS ONE, Public Library of Science, vol. 13(6), pages 1-16, June.
  • Handle: RePEc:plo:pone00:0198772
    DOI: 10.1371/journal.pone.0198772
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    Cited by:

    1. Stephen Rocks & Daniela Berntson & Alejandro Gil-Salmerón & Mudathira Kadu & Nieves Ehrenberg & Viktoria Stein & Apostolos Tsiachristas, 2020. "Cost and effects of integrated care: a systematic literature review and meta-analysis," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 21(8), pages 1211-1221, November.

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