ArticleViruses2020
Usefulness of Clinical Definitions of Influenza for Public Health Surveillance Purposes.
Article in Viruses, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 20 citations in OpenAlex.
- Clinical Impact of RSV Vaccination in Hemodialysis Patients: Real-World Evidence on Hospitalization Risk and the Role of Chronic Lung Disease.Advances in respiratory medicine · 2026Article
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- Spatiotemporal trends in severe complicated influenza among the local population in Taiwan region, 2003-2023.Epidemiology and health · 2025Article
- Effectiveness of cocoon strategy vaccination on prevention of influenza-like illness in young infants.Human vaccines & immunotherapeutics · 2024Article
- Postpandemic Sentinel Surveillance of Respiratory Diseases in the Context of the World Health Organization Mosaic Framework: Protocol for a Development and Evaluation Study Involving the English Primary Care Network 2023-2024.JMIR public health and surveillance · 2024Article
- Article
- Influenza Adverse Events in Patients with Rheumatoid Arthritis, Ulcerative Colitis, or Psoriatic Arthritis in the Tofacitinib Clinical Development Programs.Rheumatology and therapy · 2023Article
- Pan-India influenza-like illness (ILI) and Severe acute respiratory infection (SARI) surveillance: epidemiological, clinical and genomic analysis.Frontiers in public health · 2023Article
- Article
- Investigating the effects of population density of residence and rural/urban classification on rate of influenza-like illness symptoms in England and Wales.Influenza and other respiratory viruses · 2022Article
- Performance of the case definition of suspected influenza before and during the COVID-19 pandemic.Revista clinica espanola · 2021Article
- [Performance of the case definition of suspected influenza before and during the COVID-19 pandemic].Revista clinica espanola · 2021Article
- Estimating the efficacy of symptom-based screening for COVID-19.NPJ digital medicine · 2020Article
Corrections and comments
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Authors and funding
8 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study investigated the performance of various case definitions and influenza symptoms in a primary healthcare sentinel surveillance system. A retrospective study of the clinical and epidemiological characteristics of the cases reported by a primary healthcare sentinel surveillance network for eleven years in Catalonia was conducted. Crude and adjusted diagnostic odds ratios (aDORs) and 95% confidence intervals (CIs) of the case definitions and symptoms for all weeks and epidemic weeks were estimated. The most predictive case definition for laboratory-confirmed influenza was the World Health Organization (WHO) case definition for ILI in all weeks (aDOR 2.69; 95% CI 2.42-2.99) and epidemic weeks (aDOR 2.20; 95% CI 1.90-2.54). The symptoms that were significant positive predictors for confirmed influenza were fever, cough, myalgia, headache, malaise, and sudden onset. Fever had the highest aDOR in all weeks (4.03; 95% CI 3.38-4.80) and epidemic weeks (2.78; 95% CI 2.21-3.50). All of the case definitions assessed performed better in patients with comorbidities than in those without. The performance of symptoms varied by age groups, with fever being of high value in older people, and cough being of high value in children. In patients with comorbidities, the performance of fever was the highest (aDOR 5.45; 95% CI 3.43-8.66). No differences in the performance of the case definition or symptoms in influenza cases according to virus type were found.
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