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  • Title: Impact of prior statin use on clinical outcomes in COVID-19 patients: data from tertiary referral hospitals during COVID-19 pandemic in Italy.
    Author: Mitacchione G, Schiavone M, Curnis A, Arca M, Antinori S, Gasperetti A, Mascioli G, Severino P, Sabato F, Caracciolo MM, Arabia G, D'Erasmo L, Viecca M, Mancone M, Galli M, Forleo GB.
    Journal: J Clin Lipidol; 2021; 15(1):68-78. PubMed ID: 33390341.
    Abstract:
    BACKGROUND: Epidemiological evidence suggests that anti-inflammatory and immunomodulatory properties of statins may reduce the risk of infections and infection-related complications. OBJECTIVE: We aimed to assess the impact of prior statin use on coronavirus disease (COVID-19) severity and mortality. METHODS: In this observational multicenter study, consecutive patients hospitalized for COVID-19 were enrolled. In-hospital mortality and severity of COVID-19 assessed with National Early Warning Score (NEWS) were deemed primary and secondary outcomes, respectively. Propensity score (PS) matching was used to obtain balanced cohorts. RESULTS: Among 842 patients enrolled, 179 (21%) were treated with statins before admission. Statin patients showed more comorbidities and more severe COVID-19 (NEWS 4 [IQR 2-6] vs 3 [IQR 2-5], p < 0.001). Despite having similar rates of intensive care unit admission, noninvasive ventilation, and mechanical ventilation, statin users appeared to show higher mortality rates. After balancing pre-existing relevant clinical conditions that could affect COVID-19 prognosis with PS matching, statin therapy confirmed its association with a more severe disease (NEWS ≥5 61% vs. 48%, p = 0.025) but not with in-hospital mortality (26% vs. 28%, p = 0.185). At univariate logistic regression analysis, statin use was confirmed not to be associated with mortality (OR 0.901; 95% CI: 0.537 to 1.51; p = 0.692) and to be associated with a more severe disease (NEWS≥5 OR 1.7; 95% CI 1.067-2.71; p = 0.026). CONCLUSIONS: Our results did not confirm the supposed favorable effects of statin therapy on COVID-19 outcomes. Conversely, they suggest that statin use should be considered as a proxy of underlying comorbidities, which indeed expose to increased risks of more severe COVID-19.
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