Risk factors for hospital admission of Brazilian children with non-rotavirus diarrhoea: a case control-study.


Ichihara, MY; Rodrigues, LC; Santos, CA; Teixeira, MdaG; Barreto, ML; (2015) Risk factors for hospital admission of Brazilian children with non-rotavirus diarrhoea: a case control-study. Transactions of the Royal Society of Tropical Medicine and Hygiene, 109 (7). pp. 454-61. ISSN 0035-9203 DOI: 10.1093/trstmh/trv041

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Abstract

BACKGROUND: Rotavirus has been the leading cause of severe cases of acute diarrhoea (AD) among children worldwide; however, in the same areas, a large reduction in AD related to rotavirus has been observed after the introduction of the rotavirus vaccine. In Brazil, where there is a high rotavirus vaccine coverage, AD caused by pathogens other than rotavirus is still a frequent cause of outpatient visits and hospitalisations among children under 5 years.<br/> METHODS: A hospital-based case-control study enrolled children aged 4 to 24 months admitted to 10 hospitals from all five Brazilian Regions. Cases (n=1178) were children admitted with diarrhoea who tested negative for rotavirus in a stool sample. Controls (n=2515) were children admitted without diarrhoea, frequency matched to cases by sex and age group. We estimated odds ratios using logistic regression, in a hierarchical approach according to a previously defined conceptual framework. Population-attributable fractions (PAF) were estimated for each variable, each block and for all significant variables in the latter model adjusted.<br/> RESULTS: The factors studied accounted for 41% of the non-rotavirus AD hospital admissions and the main risk factors included lack of adequate excreta disposal (PAF=12%), untreated drinking water (PAF=11%) and a history of previous hospitalization due to AD (PAF=21%). Low socio-economic conditions, no public water supply, crowding and low weight-for-age made smaller contributions.<br/> CONCLUSIONS: These findings further our knowledge of risk factors associated with severe AD in the post-rotavirus vaccination era. We recommend further increase in coverage of basic sanitation, improvements in water quality and further expansion of primary healthcare coverage to reduce the occurrence of non-rotavirus severe diarrhoea and subsequent hospitalization of Brazilian children.<br/>

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Infectious Disease Epidemiology
Research Centre: Centre for Maternal, Reproductive and Child Health (MARCH)
PubMed ID: 26048872
Web of Science ID: 358021300007
URI: http://researchonline.lshtm.ac.uk/id/eprint/2210823

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