Tag: sensibilità

COVID-19-like symptoms and their relation to SARS-CoV-2 epidemic in children and adults of the Italian birth cohort

Publication date: 15/05/2020 – E&P Code: repo.epiprev.it/1634
Authors: Maja Popovic1, Chiara Moccia1, Elena Isaevska1, Giovenale Moirano1, Costanza Pizzi1, Daniela Zugna1, Franca Rusconi2, Franco Merletti1, Milena Maule1, Lorenzo Richiardi1

Abstract: Background. Emerging COVID-19 pandemic caused extensive lockdowns in a number of countries, but yet unknown number of cases positive to SARS-CoV-2 escapes surveillance systems.
Methods. Mothers participating in the Italian NINFEA birth cohort were invited to complete an online questionnaire on COVID-19-like symptoms in the household. We estimated the population prevalence of COVID-19-like symptoms in children and adults, assessed their geographical correlation with the cumulative number of COVID-19 cases by province, analysed their clustering within families, and estimated their sensitivity, positive (PPV) and negative predictive values (NPV) for COVID-19 diagnosis in individuals tested for SARS-CoV-2.

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Test sierologici: sensibilità, specificità, valore predittivo positivo (VPP) e negativo (VPN); studio di accuratezza diagnostica

Publication date: 17/04/2020 – E&P Code: repo.epiprev.it/1168
Authors: Piergiorgio Duca1

Abstract. In relazione alla cosiddetta fase 2 dell’emergenza coronavirus si parla, con una certa leggerezza, di “certificazione di immunità” per le persone che risultassero positive ai test sierologici sugli anticorpi. L’articolo propone qualche chiarimento “statistico” sull’uso di test a questo scopo.

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