Influenza A-infection and impact on incidence and severety of asthma in children before and after occurrence of the serotype H1N1 in 2009

• Conditions: J45; J10.0; Asthma; Influenza with pneumonia, seasonal influenza virus identified

• Registration Number: DRKS00015329
• Lead Sponsor: niversitätsklinikum Schleswig-Holstein, Campus KielKlinik für Kinder- und Jugendmedizin

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2018-09-27
• Study Completion: 2019-04-15
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Complete
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

Influenza A infection, pathogen proven by polymerase chain reaction from nasopharyngeal secretions

Exclusion Criteria

any kind of chronic illness other than respiratory hypersensitivity

Study & Design

• Study Type: observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Identification of patients and proof of childhood asthma in children and adolescents <18 years suffering from influenza A infection in the years 2005-2018. <br>Retrospective evaluation of patients with proof of influenza A (H1N1 and non-H1N1) in nasopharyngeal secretions by polymerase chain reaction.<br>Proof of childhood asthma by means of catamnesis, physical examination, and lung function testing with spirometry and bodyplethysmography.

Secondary Outcome Measures

Name	Time	Method
Identification of patients and proof of childhood asthma in children and adolescents <18 years suffering from influenza A infection in the years 2005-2018. <br>Retrospective evaluation of patients with proof of influenza A (H1N1 only) in nasopharyngeal secretions by polymerase chain reaction.<br>Proof of childhood asthma by means of catamnesis, physical examination, and lung function testing with spirometry and bodyplethysmography.