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A multi-country study of intussusception in children under 2 years of age in Latin America: analysis of prospective surveillance data

Overview of attention for article published in BMC Gastroenterology, May 2013
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1 Facebook page

Citations

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18 Dimensions

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41 Mendeley
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Title
A multi-country study of intussusception in children under 2 years of age in Latin America: analysis of prospective surveillance data
Published in
BMC Gastroenterology, May 2013
DOI 10.1186/1471-230x-13-95
Pubmed ID
Authors

Xavier Sáez-Llorens, F Raúl Velázquez, Pio Lopez, Felix Espinoza, Alexandre C Linhares, Hector Abate, Ernesto Nuñez, Guillermo Venegas, Rodrigo Vergara, Ana L Jimenez, Maribel Rivera, Carlos Aranza, Vesta Richardson, Mercedes Macias-Parra, Guillermo Ruiz Palacios, Luis Rivera, Eduardo Ortega-Barria, Yolanda Cervantes, Ricardo Rüttimann, Pilar Rubio, Camilo J Acosta, Claire Newbern, Thomas Verstraeten, Thomas Breuer

Abstract

BACKGROUND: Intussusception (IS) is a form of acute intestinal obstruction that occurs mainly in infants and is usually of unknown cause. An association between IS and the first licensed rotavirus vaccine, a reassortant-tetravalent, rhesus-based rotavirus vaccine (RRV-TV), led to the withdrawal of the vaccine. New rotavirus vaccines have now been developed and extensively studied for their potential association with IS. This study aimed to describe the epidemiology and to estimate the incidence of IS in Latin American infants prior to new vaccine introduction. METHODS: Children under 2 years of age representing potential IS cases were enrolled in 16 centers in 11 Latin American countries from January 2003 to May 2005. IS cases were classified as definite, probable, possible or suspected as stated on the Brighton Collaboration Working Group guidelines. RESULTS: From 517 potential cases identified, 476 (92%) cases were classified as definite, 21 probable, 10 possible and 10 suspected for intussusception. Among the 476 definite IS cases, the median age at presentation was 6.4 months with 89% of cases aged <1 year. The male to female ratio was 1.5:1. The incidence of definite IS per 100,000 subject-years ranged from 1.9 in Brazil to 62.4 in Argentina for children <2 years of age, and from 3.8 in Brazil to 105.3 in Argentina for children aged <1 year. Median hospital stay was 4 days with a high prevalence of surgery as the primary treatment (65%). Most cases (88%) made a complete recovery, but 13 (3%) died. No clear seasonal pattern of IS cases emerged. CONCLUSIONS: This study describes the epidemiology and estimates the incidence of IS in Latin American infants prior to the introduction of new rotavirus vaccines. The incidence of IS was found to vary between different countries, as observed in previous studies.Trial registration: Clinical study identifier 999910/204 (SERO-EPI-IS-204).

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 41 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 2%
Ecuador 1 2%
Belgium 1 2%
Unknown 38 93%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 8 20%
Researcher 7 17%
Student > Master 6 15%
Student > Bachelor 4 10%
Professor > Associate Professor 3 7%
Other 8 20%
Unknown 5 12%
Readers by discipline Count As %
Medicine and Dentistry 23 56%
Nursing and Health Professions 4 10%
Agricultural and Biological Sciences 4 10%
Biochemistry, Genetics and Molecular Biology 1 2%
Pharmacology, Toxicology and Pharmaceutical Science 1 2%
Other 3 7%
Unknown 5 12%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 May 2013.
All research outputs
#2,925,195
of 4,507,280 outputs
Outputs from BMC Gastroenterology
#293
of 557 outputs
Outputs of similar age
#58,083
of 89,832 outputs
Outputs of similar age from BMC Gastroenterology
#17
of 31 outputs
Altmetric has tracked 4,507,280 research outputs across all sources so far. This one is in the 31st percentile – i.e., 31% of other outputs scored the same or lower than it.
So far Altmetric has tracked 557 research outputs from this source. They receive a mean Attention Score of 2.7. This one is in the 43rd percentile – i.e., 43% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 89,832 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 31st percentile – i.e., 31% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 31 others from the same source and published within six weeks on either side of this one. This one is in the 35th percentile – i.e., 35% of its contemporaries scored the same or lower than it.