Δημοσίευση

Clinical differences between H3N2 and H1N1 influenza 2012 and lower respiratory tract infection found using a statistical classification approach.

ΤίτλοςClinical differences between H3N2 and H1N1 influenza 2012 and lower respiratory tract infection found using a statistical classification approach.
Publication TypeJournal Article
Year of Publication2014
AuthorsPetridis, D., Zarogoulidis P., Kallianos A., Kioumis I., Trakada G., Spyratos D., Papaiwannou A., Porpodis K., Huang H., Rapti A., Hohenforst-Schmidt W., & Zarogoulidis K.
JournalTher Clin Risk Manag
Volume10
Pagination77-86
Date Published2014
ISSN1176-6336
Abstract

BACKGROUND: Influenza A H1N1 and H3N2 are two influenza waves that have been identified in past years.METHODS: Data from 77 inpatients from three tertiary hospitals were included and statistical analysis was performed in three different clusters.RESULTS: Thirty-four patients (44.2%) had respiratory distress upon admission, 31.2% had a smoking history or were active smokers, 37.7% manifested disease symptoms, and 7.8% were obese (body mass index >41). The mean age of patients was 51.1 years. Cough was the most common symptom observed in 77.9% of the patients, accompanied by sputum production (51.9%) and fatigue (42.9%). Hemoptysis and vomiting were rarely recorded in the patients (9.1% and 16.9%, respectively). Oseltamivir administration varied between 0 and 10 days, giving a mean value of 2.2 days. In particular, 19 patients received no drug, 31 patients received drug for only for 1 day, 19 patients for 5 days, and 8 patients from 2 to 10 days.CONCLUSION: Clusters of symptoms can be used to identify different types of influenza and disease severity. Patients with vaccination had pneumonia, whereas patients without vaccination had influenza A. Patients more than 54.5 years old had H3N2 and patients less than 54.5 years had H1N1. White blood cell count values increased from normal to elevated in H3N2 patients but still remained abnormal in lower tract infection and H1N1 patients.

DOI10.2147/TCRM.S57429
Alternate JournalTher Clin Risk Manag
PubMed ID24532970
PubMed Central IDPMC3923611

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