RESEARCH ARTICLE


Incidence of Hospitalization Due to Pneumonia in Children Aged Less than 3 Years



Gustavo Cilla*, 1, Eider Oñate2, Eduardo G. Pérez-Yarza2, Agustin Nogués2, Emilio Pérez-Trallero*, 1, 2, 3
1 Servicio de Microbiología, Hospital Donostia, San Sebastián, Spain
2 Departamento de Pediatría, Hospital Donostia, San Sebastián, Spain
3 Departamento de Medicina preventiva y Salud Pública, Facultad de Medicina, Universidad del País Vasco, San Sebastián, Spain
4 CIBERES Centro de Investigación Biomédica en Red Enfermedades Respiratorias, San Sebastián, Spain


© 2009 Cilla et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Servicio de Microbiología, Hospital Donostia, Aptdo de Correos 477, 20080 San Sebastián, Spain. Tel:+34943007046; Fax: +34943007470; E-mail: mikrobiol@terra.es


Abstract

Background:

The aim of this study was to determine the hospitalization rate due to pneumonia in preschool children in our region and to compare the rate found with those reported in the literature.

Methods:

We performed a prospective study between October 2004 and September 2006 in patients aged less than 3 years old in San Sebastian (Spain) and the surrounding region. All children admitted to hospital for radiologically-confirmed pneumonia (presence of lobar or segmental alveolar infiltrate, interstitial infiltrate and/or pleural effusion) were included.

Results:

There were 116 episodes requiring hospitalization, representing an incidence of 6.4 cases/1000 inhabitants (6.2 in infants aged less than 1 year and 6.6 in children aged 12-35 months). Admission to the intensive care unit was required in 10.3% (12/116). Alveolar infiltrate was found on chest radiograph in 62.1% (72/116), ranging from 51.4% (19/37) in infants aged less than 1 year and 69.6% (32/46) in children aged 24 months or more. Mortality at 30 days of admission was nil.

Conclusion:

The incidence of hospitalization due to community-acquired pneumonia in infants and children, as well as that of pneumonia with alveolar infiltrate, was high in our region. Evaluation of the potential utility of the new pneumococcal conjugate vaccine and the influenza vaccine for children should also take into account their effectiveness in preventing pneumonia in this age group.

Keywords: Childhood pneumonia, pneumonia with consolidation, hospitalization.