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Alves-Cabratosa L, Comas-Cufí M, Blanch J, Martí-Lluch R, Ponjoan A, Castro-Guardiola A, Hurtado-Ganoza A, Pérez-Jaén A, Rexach-Fumaña M, Faixedas-Brunsoms D, Gispert-Ametller MA, Guell-Cargol A, Rodriguez-Batista M, Santaularia-Font F, Orriols R, Bonnin-Vilaplana M, Calderón-López JC, Sabater-Talaverano G, Queralt-Moles FX, Rodriguez-Requejo S, Avellana-Revuelta E, Balló E, Fages-Masmiquel E, Sirvent JM, Lorencio C, Morales-Pedrosa JM, Ortiz-Ballujera P, Ramos R
Individuals With SARS-CoV-2 Infection During the First and Second Waves in Catalonia, Spain: Retrospective Observational Study Using Daily Updated Data
Persons with SARS-CoV-2 during the First and Second Waves in Catalonia (Spain): A Retrospective Observational Study Using Daily Updated Data
Lia Alves-Cabratosa;
Marc Comas-Cufí;
Jordi Blanch;
Ruth Martí-Lluch;
Anna Ponjoan;
Antoni Castro-Guardiola;
Abelardo Hurtado-Ganoza;
Ana Pérez-Jaén;
Maria Rexach-Fumaña;
Delfi Faixedas-Brunsoms;
Maria Angels Gispert-Ametller;
Anna Guell-Cargol;
Maria Rodriguez-Batista;
Ferran Santaularia-Font;
Ramon Orriols;
Marc Bonnin-Vilaplana;
Juan Carlos Calderón-López;
Gladis Sabater-Talaverano;
Francesc Xavier Queralt-Moles;
Sara Rodriguez-Requejo;
Esteve Avellana-Revuelta;
Elisabet Balló;
Ester Fages-Masmiquel;
Josep-Maria Sirvent;
Carol Lorencio;
Josep Miquel Morales-Pedrosa;
Patricia Ortiz-Ballujera;
Rafel Ramos
ABSTRACT
Background:
Description of persons with infection by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) comparing the first and second waves could help adapt the health services to manage this highly transmissible disease.
Objective:
We aimed to describe the epidemiology and characteristics of persons with suspected SARS-CoV-2 infection, comparing first and second waves.
Methods:
This retrospective observational study analysed daily updated data of persons with a positive reverse-transcription polymerase chain reaction or rapid antigenic test for SARS-CoV-2. Patients’ severity was defined by their admission to hospital; intermediate respiratory care; intensive care; or by decease. The first wave was from 01/03/2020 to 24/06/2020, and the second from 25/06/2020 to 08/12/2020.
Results:
The number of tests and cases was lower in the first wave, but the percentage of positive results was higher (12.0% in the first wave versus 8.4% in the second). Of persons with a positive diagnostic test, a higher proportion needed hospitalisation in the first wave (26.1%, versus 5.8% in the second wave). The group that was not admitted to hospital included older persons and with more comorbidities in the first wave, whereas the characteristics of the groups admitted to hospital were more alike.
Conclusions:
A higher percentage of persons with a positive test for SARS-CoV-2 infection was found in the first wave, despite being a less numerous group. These persons were older and in worse health condition.
Citation
Please cite as:
Alves-Cabratosa L, Comas-Cufí M, Blanch J, Martí-Lluch R, Ponjoan A, Castro-Guardiola A, Hurtado-Ganoza A, Pérez-Jaén A, Rexach-Fumaña M, Faixedas-Brunsoms D, Gispert-Ametller MA, Guell-Cargol A, Rodriguez-Batista M, Santaularia-Font F, Orriols R, Bonnin-Vilaplana M, Calderón-López JC, Sabater-Talaverano G, Queralt-Moles FX, Rodriguez-Requejo S, Avellana-Revuelta E, Balló E, Fages-Masmiquel E, Sirvent JM, Lorencio C, Morales-Pedrosa JM, Ortiz-Ballujera P, Ramos R
Individuals With SARS-CoV-2 Infection During the First and Second Waves in Catalonia, Spain: Retrospective Observational Study Using Daily Updated Data