title: Increased incidence of admissions for anaphylaxis in Spain 1998-2011.
abstract: We report on trends in anaphylaxis admissions in the Spanish hospital system during the period 1998-2011. Data on admissions for anaphylaxis were obtained from the Spanish Information System for Hospital Data for the period 1998-2011. Patients were selected using the codes for anaphylaxis in the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM). Poisson regression models were used to estimate incidence rate ratios. We recorded a 1.89-fold increase in admissions for anaphylaxis in Spanish hospitals during the study period, particularly in patients aged 0-14 years (1.65- to 3.22-fold until 2009 and 4.09- to 12.59-fold until 2011) and in food anaphylaxis in all age groups (2.78-fold until 2009 and 8.74-fold until 2011). The incidence of anaphylaxis is perceived as having increased in recent years, especially anaphylaxis caused by food and anaphylaxis affecting the pediatric population.
authors: Allergy Unit, Hospital Universitario Fundacion Alcorcón, Alcorcón, Madrid, Spain.|Medicine and Surgery Department, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.
authors: M A
authors: MA
authors: Tejedor-Alonso
authors: Allergy Unit, Hospital Universitario Fundacion Alcorcón, Alcorcón, Madrid, Spain.
authors: M
authors: M
authors: Moro-Moro
authors: Preventive Medicine Unit, Hospital Universitario Fundacion Alcorcón, Alcorcón, Madrid, Spain.
authors: M
authors: M
authors: Mosquera González
authors: Allergy Unit, Hospital Universitario Fundacion Alcorcón, Alcorcón, Madrid, Spain.
authors: M
authors: M
authors: Rodriguez-Alvarez
authors: Medical Research Unit, Hospital Universitario Fundacion Alcorcón, Alcorcón, Madrid, Spain.
authors: E
authors: E
authors: Pérez Fernández
authors: Preventive Medicine Unit, Hospital Universitario Fundacion Alcorcón, Alcorcón, Madrid, Spain.
authors: P
authors: P
authors: Latasa Zamalloa
authors: Allergy Unit, Hospital Universitario Fundacion Alcorcón, Alcorcón, Madrid, Spain.
authors: E
authors: E
authors: Farias Aquino
authors: Preventive Medicine and Public Health Department, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.
authors: R
authors: R
authors: Gil Prieto
authors: Preventive Medicine and Public Health Department, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain.
authors: A
authors: A
authors: Gil de Miguel
mesh_terms: D000328:Adult; D000368:Aged; D000707:Anaphylaxis / Q000453:epidemiology* / Q000209:etiology / Q000266:history; D005260:Female; D049673:History, 20th Century; D049674:History, 21st Century; D006760:Hospitalization; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D013030:Spain / Q000453:epidemiology
keywords: admissions; anaphylaxis; children; food; increase