Social factors related to the clinical severity of influenza cases in Spain during the A(H1N1)2009 virus pandemic

Background During the 2009 influenza pandemic, a change in the type of patients most often affected by influenza was observed. The objective of this study was to assess the role of individual and social determinants in hospitalizations due to influenza A (H1N1) 2009 infection. Methods We studied hos...

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Detalles Bibliográficos
Autores: Mayoral, José María, Alonso, Jordi, Garín, Olatz, Herrado, Zaida, Astray, Jenaro, Baricot, Maretva, Cantón, Rafael, Castilla, Jesús, Castro Acosta, Ady Angélica, Delgado Rodríguez, Miguel, Ferri, Alicia, Godoy i García, Pere, González Candelas, Fernando, Martín Sánchez, Vicente, Pumarola Suñé, Tomàs, Quintana, José María, Soldevila, Núria, Tamames, Sonia, Domínguez García, Àngela, CIBERESP Cases
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/53324
Acceso en línea:https://hdl.handle.net/2445/53324
Access Level:acceso abierto
Palabra clave:Influenzavirus
Epidemiologia
Espanya
Classes socials
Influenza viruses
Epidemiology
Spain
Social classes
Descripción
Sumario:Background During the 2009 influenza pandemic, a change in the type of patients most often affected by influenza was observed. The objective of this study was to assess the role of individual and social determinants in hospitalizations due to influenza A (H1N1) 2009 infection. Methods We studied hospitalized patients (cases) and outpatients (controls) with confirmed influenza A (H1N1) 2009 infection. A standardized questionnaire was used to collect data. Variables that might be related to the hospitalization of influenza cases were compared by estimation of the odds ratio (OR) and 95% confidence intervals (CI) and the variables entered into binomial logistic regression models. Results Hospitalization due to pandemic A (H1N1) 2009 influenza virus infections was associated with non-Caucasian ethnicity (OR: 2.18, 95% CI 1.17 − 4.08), overcrowding (OR: 2.84, 95% CI 1.20 − 6.72), comorbidity and the lack of previous preventive information (OR: 2.69, 95% CI: 1.50 − 4.83). Secondary or higher education was associated with a lower risk of hospitalization (OR 0.56, 95% CI: 0.36 − 0.87) Conclusions In addition to individual factors such as comorbidity, other factors such as educational level, ethnicity or overcrowding were associated with hospitalization due to A (H1N1) 2009 influenza virus infections.

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