Social factors related to the clinical severity of influenza cases in Spain during the A (H1N1) 2009 virus pandemic
Jos? Mar?a Mayoral, Jordi Alonso, Olatz Gar?n, Zaida Herrador, Jenaro Astray, Maretva Baricot, Rafael Cant?n, Jes?s Castilla, Ady Castro, Miguel Delgado-Rodr?guez, Alicia Ferri, Pere Godoy, Fernando G?nz?lez-Candelas, Vicente Mart?n, Tom?s Pumarola, Jos? Mar?a Quintana, N?ria Soldevila, Sonia Tamames and ?ngela Dom?nguez
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BMC Public Health 2013, 13:118 doi:10.1186/1471-2458-13-118
Published: 7 February 2013
Abstract (provisional)
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.
full article
Jos? Mar?a Mayoral, Jordi Alonso, Olatz Gar?n, Zaida Herrador, Jenaro Astray, Maretva Baricot, Rafael Cant?n, Jes?s Castilla, Ady Castro, Miguel Delgado-Rodr?guez, Alicia Ferri, Pere Godoy, Fernando G?nz?lez-Candelas, Vicente Mart?n, Tom?s Pumarola, Jos? Mar?a Quintana, N?ria Soldevila, Sonia Tamames and ?ngela Dom?nguez
For all author emails, please log on.
BMC Public Health 2013, 13:118 doi:10.1186/1471-2458-13-118
Published: 7 February 2013
Abstract (provisional)
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.
full article