Early Detection of the Start of the Influenza Epidemic Using Surveillance Systems in Catalonia (PREVIGrip Study).

Autor:	Dalmau Llorca MR; Primary Care Intervention Evaluation Research Group (GAVINA Research Group), IDIAPJGol Terres de l'Ebre, 43500 Tortosa, Spain.; Servei d'Atenció Primària Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain.; Campus Terres de l'Ebre, Universitat Rovira i Virgili, 43500 Tortosa, Spain., Castro Blanco E; Primary Care Intervention Evaluation Research Group (GAVINA Research Group), IDIAPJGol Terres de l'Ebre, 43500 Tortosa, Spain.; Campus Terres de l'Ebre, Universitat Rovira i Virgili, 43500 Tortosa, Spain.; Terres de l'Ebre Research Support Unit, Foundation University Institute for Primary Health Care Research Jordi Gol i Gurina (IDIAPJGol), 43500 Tortosa, Spain., Aguilar Martín C; Primary Care Intervention Evaluation Research Group (GAVINA Research Group), IDIAPJGol Terres de l'Ebre, 43500 Tortosa, Spain.; Servei d'Atenció Primària Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain.; Unitat d'Avaluació, Direcció d'Atenció Primària Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain., Carrasco-Querol N; Primary Care Intervention Evaluation Research Group (GAVINA Research Group), IDIAPJGol Terres de l'Ebre, 43500 Tortosa, Spain.; Terres de l'Ebre Research Support Unit, Foundation University Institute for Primary Health Care Research Jordi Gol i Gurina (IDIAPJGol), 43500 Tortosa, Spain., Hernández Rojas Z; Primary Care Intervention Evaluation Research Group (GAVINA Research Group), IDIAPJGol Terres de l'Ebre, 43500 Tortosa, Spain.; Servei d'Atenció Primària Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain.; Campus Terres de l'Ebre, Universitat Rovira i Virgili, 43500 Tortosa, Spain., Gonçalves AQ; Primary Care Intervention Evaluation Research Group (GAVINA Research Group), IDIAPJGol Terres de l'Ebre, 43500 Tortosa, Spain.; Servei d'Atenció Primària Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain., Fernández-Sáez J; Primary Care Intervention Evaluation Research Group (GAVINA Research Group), IDIAPJGol Terres de l'Ebre, 43500 Tortosa, Spain.; Servei d'Atenció Primària Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain.; Campus Terres de l'Ebre, Universitat Rovira i Virgili, 43500 Tortosa, Spain.; Unitat de Recerca, Gerència Territorial Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain.; Unitat Docent de Medicina de Familia i Comunitària, Tortosa-Terres de l'Ebre, Institut Català de la Salut, 43500 Tortosa, Spain.
Jazyk:	angličtina
Zdroj:	International journal of environmental research and public health [Int J Environ Res Public Health] 2022 Dec 19; Vol. 19 (24). Date of Electronic Publication: 2022 Dec 19.
DOI:	10.3390/ijerph192417048
Abstrakt:	Sentinel physician networks are the method of influenza surveillance recommended by the World Health Organization. Weekly clinical diagnoses based on clinical history are a surveillance method that provides more immediate information. The objective of this study is to evaluate which influenza surveillance system is capable of the earliest detection of the start of the annual influenza epidemic. We carried out an ecological time-series study based on influenza data from the population of Catalonia from the 2010-2011 to the 2018-2019 seasons. Rates of clinical diagnoses and of confirmed cases in Catalonia were used to study the changes in trends in the different surveillance systems, the differences in area and time lag between the curves of the different surveillance systems using Joinpoint regression, Simpson's 1/3 method and cross-correlation, respectively. In general, changes in the trend of the curves were detected before the beginning of the epidemic in most seasons, using the rates for the complete seasons and the pre-epidemic rates. No time lag was observed between clinical diagnoses and the total confirmed cases. Therefore, clinical diagnoses in Primary Care could be a useful tool for early detection of the start of influenza epidemics in Catalonia.
Databáze:	MEDLINE
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