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Epidemiology of SARS-CoV-2 Infection in Italy Using Real-World Data: Methodology and Cohort Description of the Second Phase of Web-Based EPICOVID19 Study.
Adorni, Fulvio; Jesuthasan, Nithiya; Perdixi, Elena; Sojic, Aleksandra; Giacomelli, Andrea; Noale, Marianna; Trevisan, Caterina; Franchini, Michela; Pieroni, Stefania; Cori, Liliana; Mastroianni, Claudio Maria; Bianchi, Fabrizio; Antonelli-Incalzi, Raffaele; Maggi, Stefania; Galli, Massimo; Prinelli, Federica.
  • Adorni F; National Research Council, Institute of Biomedical Technologies, Via Fratelli Cervi 93, 20054 Segrate, Italy.
  • Jesuthasan N; National Research Council, Institute of Biomedical Technologies, Via Fratelli Cervi 93, 20054 Segrate, Italy.
  • Perdixi E; National Research Council, Institute of Biomedical Technologies, Via Fratelli Cervi 93, 20054 Segrate, Italy.
  • Sojic A; National Research Council, Institute of Biomedical Technologies, Via Fratelli Cervi 93, 20054 Segrate, Italy.
  • Giacomelli A; Infectious Diseases Unit, Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, ASST Fatebenefratelli Sacco, 20157 Milan, Italy.
  • Noale M; National Research Council, Neuroscience Institute, Aging Branch, Via Vincenzo Maria Gallucci 16, 35128 Padova, Italy.
  • Trevisan C; Geriatric Unit, Department of Medicine (DIMED), University of Padova, Via Giustiniani 2, 35128 Padova, Italy.
  • Franchini M; Department of Medical Sciences, University of Ferrara, Via Aldo Moro 8, Cona, 44124 Ferrara, Italy.
  • Pieroni S; National Research Council, Institute of Clinical Physiology, Via G. Moruzzi 1, 56124 Pisa, Italy.
  • Cori L; National Research Council, Institute of Clinical Physiology, Via G. Moruzzi 1, 56124 Pisa, Italy.
  • Mastroianni CM; National Research Council, Institute of Clinical Physiology, Via G. Moruzzi 1, 56124 Pisa, Italy.
  • Bianchi F; Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy.
  • Antonelli-Incalzi R; National Research Council, Institute of Clinical Physiology, Via G. Moruzzi 1, 56124 Pisa, Italy.
  • Maggi S; Unit of Geriatrics, Department of Medicine, Biomedical Campus of Rome, 00128 Rome, Italy.
  • Galli M; National Research Council, Neuroscience Institute, Aging Branch, Via Vincenzo Maria Gallucci 16, 35128 Padova, Italy.
  • Prinelli F; Infectious Diseases Unit, Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, ASST Fatebenefratelli Sacco, 20157 Milan, Italy.
  • On Behalf Of The Epicovid Working Group; National Research Council, Institute of Biomedical Technologies, Via Fratelli Cervi 93, 20054 Segrate, Italy.
Int J Environ Res Public Health ; 19(3)2022 Jan 24.
Article in English | MEDLINE | ID: covidwho-1649176
Preprint
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ABSTRACT
Digital technologies have been extensively employed in response to the SARS-CoV-2 pandemic worldwide. This study describes the methodology of the two-phase internet-based EPICOVID19 survey, and the characteristics of the adult volunteer respondents who lived in Italy during the first (April-May 2020) and the second wave (January-February 2021) of the epidemic. Validated scales and ad hoc questionnaires were used to collect socio-demographic, medical and behavioural characteristics, as well as information on COVID-19. Among those who provided email addresses during phase I (105,355), 41,473 participated in phase II (mean age 50.7 years ± 13.5 SD, 60.6% females). After a median follow-up of ten months, 52.8% had undergone nasopharyngeal swab (NPS) testing and 13.2% had a positive result. More than 40% had undergone serological test (ST) and 11.9% were positive. Out of the 2073 participants with at least one positive ST, 72.8% had only negative results from NPS or never performed it. These results indicate that a large fraction of individuals remained undiagnosed, possibly contributing to the spread of the virus in the community. Participatory online surveys offer a unique opportunity to collect relevant data at individual level from large samples during confinement.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Cohort study / Observational study / Prognostic study / Randomized controlled trials Limits: Adult / Female / Humans / Male / Middle aged Country/Region as subject: Europa Language: English Year: 2022 Document Type: Article Affiliation country: Ijerph19031274

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Cohort study / Observational study / Prognostic study / Randomized controlled trials Limits: Adult / Female / Humans / Male / Middle aged Country/Region as subject: Europa Language: English Year: 2022 Document Type: Article Affiliation country: Ijerph19031274