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Prognostic factors for mortality in neonatal tetanus: a systematic review and meta-analysis.
MedLine Citation:
PMID:  24145010     Owner:  NLM     Status:  Publisher    
OBJECTIVES: To determine prognostic factors for mortality in neonates with tetanus and to assess the associations between prognostic factors and neonatal tetanus (NT) mortality.
METHODS: Five databases were searched for studies on prognostic factors and NT mortality published up to April 2013 to identify studies relevant to this review. Prognostic factors of interest were birth weight, age at onset of symptoms, age at presentation, delay in presentation, and duration of hospitalization. Odds ratios (ORs) for prognostic factors and mortality were estimated by random effects models and stratified analyses for all studies.
RESULTS: Sixteen studies including a total of 4535 neonates were included in the analysis: nine from Africa, five from Asia, and two from Europe. The prognostic factors identified consistently in the studies were birth weight, age at onset of symptoms, and age at presentation. Of the 16 studies, only one assessed all three prognostic factors, five studies assessed two prognostic factors, and 10 studies assessed one prognostic factor. Neonates with a low birth weight were more likely to have an increased odds of NT death (OR 2.09, 95% confidence interval (CI) 1.29-3.37) than normal weight neonates. This mortality risk was exacerbated for low birth weight neonates with age at onset ≤6 days (OR 6.80, 95% CI 2.42-19.11). Age at onset ≤5-7 days was associated with an increased odds of NT death.
CONCLUSIONS: Low birth weight predicted an increased odds of death by NT. Age at onset ≤5-7 days to diagnosis is crucial in determining survival among neonates with tetanus.
Jonathan A Lambo; Emmanuel A Anokye
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-10-18
Journal Detail:
Title:  International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases     Volume:  -     ISSN:  1878-3511     ISO Abbreviation:  Int. J. Infect. Dis.     Publication Date:  2013 Oct 
Date Detail:
Created Date:  2013-10-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610933     Medline TA:  Int J Infect Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 International Society for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.
Department of Community Health Sciences, Faculty of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB T2N 1N4, Canada. Electronic address:
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