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MRSA infections in Norway: A study of the temporal evolution, 2006-2015
BACKGROUND: Norway has one of the lowest prevalences of methicillin-resistant Staphylococcus aureus (MRSA) infections in the world. This study exploits the extensive data on MRSA infections in the Norwegian surveillance system to investigate the important factors defining the MRSA epidemiology. METH...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5480993/ https://www.ncbi.nlm.nih.gov/pubmed/28640901 http://dx.doi.org/10.1371/journal.pone.0179771 |
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author | Di Ruscio, Francesco Bjørnholt, Jørgen Vildershøj Leegaard, Truls Michael Moen, Aina E. Fossum de Blasio, Birgitte Freiesleben |
author_facet | Di Ruscio, Francesco Bjørnholt, Jørgen Vildershøj Leegaard, Truls Michael Moen, Aina E. Fossum de Blasio, Birgitte Freiesleben |
author_sort | Di Ruscio, Francesco |
collection | PubMed |
description | BACKGROUND: Norway has one of the lowest prevalences of methicillin-resistant Staphylococcus aureus (MRSA) infections in the world. This study exploits the extensive data on MRSA infections in the Norwegian surveillance system to investigate the important factors defining the MRSA epidemiology. METHODS: We performed a quasi-Poisson regression of the monthly notification rate (NR) of MRSA infections reported from January 2006 to December 2015, comparing the time trend among people with an immigrant vs. Norwegian background and domestic vs. imported infections, stratified by age groups. FINDINGS: A total of 5289 MRSA infections were reported during the study period, of which 2255 (42·6%) were acquired in Norway, 1370 (25·9%) abroad, and 1664 (31·5%) with an unknown place of acquisition. Overall, the monthly NR increased significantly from 2006 to 2015 (+0·8% each month). The monthly increase in immigrants (+1·3%) was steeper than that in people with a Norwegian background (+0·6%). There was a significant growth (+0·4%) in the rate of domestically acquired infections, however, the NR of infections acquired abroad increased faster (+0·8%). For both imported and domestic infections, the increase occurred in persons aged < 70 years. INTERPRETATION: Our analysis suggests that immigration and importation, especially among persons aged < 40 years, represent important factors for the increasing notification rate of MRSA infections in Norway. |
format | Online Article Text |
id | pubmed-5480993 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-54809932017-07-05 MRSA infections in Norway: A study of the temporal evolution, 2006-2015 Di Ruscio, Francesco Bjørnholt, Jørgen Vildershøj Leegaard, Truls Michael Moen, Aina E. Fossum de Blasio, Birgitte Freiesleben PLoS One Research Article BACKGROUND: Norway has one of the lowest prevalences of methicillin-resistant Staphylococcus aureus (MRSA) infections in the world. This study exploits the extensive data on MRSA infections in the Norwegian surveillance system to investigate the important factors defining the MRSA epidemiology. METHODS: We performed a quasi-Poisson regression of the monthly notification rate (NR) of MRSA infections reported from January 2006 to December 2015, comparing the time trend among people with an immigrant vs. Norwegian background and domestic vs. imported infections, stratified by age groups. FINDINGS: A total of 5289 MRSA infections were reported during the study period, of which 2255 (42·6%) were acquired in Norway, 1370 (25·9%) abroad, and 1664 (31·5%) with an unknown place of acquisition. Overall, the monthly NR increased significantly from 2006 to 2015 (+0·8% each month). The monthly increase in immigrants (+1·3%) was steeper than that in people with a Norwegian background (+0·6%). There was a significant growth (+0·4%) in the rate of domestically acquired infections, however, the NR of infections acquired abroad increased faster (+0·8%). For both imported and domestic infections, the increase occurred in persons aged < 70 years. INTERPRETATION: Our analysis suggests that immigration and importation, especially among persons aged < 40 years, represent important factors for the increasing notification rate of MRSA infections in Norway. Public Library of Science 2017-06-22 /pmc/articles/PMC5480993/ /pubmed/28640901 http://dx.doi.org/10.1371/journal.pone.0179771 Text en © 2017 Di Ruscio et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Di Ruscio, Francesco Bjørnholt, Jørgen Vildershøj Leegaard, Truls Michael Moen, Aina E. Fossum de Blasio, Birgitte Freiesleben MRSA infections in Norway: A study of the temporal evolution, 2006-2015 |
title | MRSA infections in Norway: A study of the temporal evolution, 2006-2015 |
title_full | MRSA infections in Norway: A study of the temporal evolution, 2006-2015 |
title_fullStr | MRSA infections in Norway: A study of the temporal evolution, 2006-2015 |
title_full_unstemmed | MRSA infections in Norway: A study of the temporal evolution, 2006-2015 |
title_short | MRSA infections in Norway: A study of the temporal evolution, 2006-2015 |
title_sort | mrsa infections in norway: a study of the temporal evolution, 2006-2015 |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5480993/ https://www.ncbi.nlm.nih.gov/pubmed/28640901 http://dx.doi.org/10.1371/journal.pone.0179771 |
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