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Multicenter Study
. 2015 Jun 9:15:543.
doi: 10.1186/s12889-015-1890-3.

Effectiveness of non-pharmaceutical measures in preventing pediatric influenza: a case-control study

Núria Torner  1   2   3 , Núria Soldevila  4 , Juan Jose Garcia  5 , Cristian Launes  5 , Pere Godoy  6   7 , Jesús Castilla  7   8 , Angela Domínguez  7   4 ; CIBERESP Cases and Controls in Pandemic Influenza Working Group, Spain
Collaborators, Affiliations
Multicenter Study

Effectiveness of non-pharmaceutical measures in preventing pediatric influenza: a case-control study

Núria Torner et al. BMC Public Health. .

Abstract

Background: Hygiene behavior plays a relevant role in infectious disease transmission. The aim of this study was to evaluate non-pharmaceutical interventions (NPI) in preventing pediatric influenza infections.

Methods: Laboratory confirmed influenza cases occurred during 2009-10 and 2010-11 seasons matched by age and date of consultation. NPI (frequency of hand washing, alcohol-based hand sanitizer use and hand washing after touching contaminated surfaces) during seven days prior to onset of symptoms were obtained from parents of cases and controls.

Results: Cases presented higher prevalence of underlying conditions such as pneumonia [OR = 3.23; 95% CI: 1.38-7.58 p = 0.007], asthma [OR = 2.45; 95% CI: 1.17-5.14 p = 0.02] and having more than 1 risk factor [OR = 1.67; 95% CI: 0.99-2.82 p = 0.05]. Hand washing more than 5 times per day [aOR = 0.62; 95% CI: 0.39-0.99 p = 0.04] was the only statistically significant protective factor. When considering two age groups (pre-school age 0-4 yrs and school age 5-17) yrs , only the school age group showed a negative association for influenza infection for both washing more than 5 times per day [aOR = 0.47; 95% CI: 0.22-0.99 p = 0.04] and hand washing after touching contaminated surfaces [aOR = 0.19; 95% CI: 0.04-0.86 p = 0.03].

Conclusion: Frequent hand washing should be recommended to prevent influenza infection in the community setting and in special in the school age group.

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