Background Clinical features and outcomes of SARS-CoV-2 infections diverge in different countries. The aim of this study was to describe clinical characteristics and outcomes in a cohort of patients hospitalized with SARS-CoV-2 in Argentina. Methods Multicenter prospective cohort study of ≥18 years-old patients with confirmed SARS-CoV-2 infection consecutively admitted to 19 hospitals in Argentina. Multivariable logistic regression models were used to identify variables associated with 30-day mortality and admission to intensive care unit (ICU). Results A total of 809 patients were analyzed. Median age was 53 years, 56% were males and 71% had at least one comorbidity. The most common comorbidities were hypertension (32%), obesity (23%) and diabetes (17%). Disease severity at admission was classified as mild 25%, moderate 51%, severe 17%, and critical 7%. Almost half of patients (49%) required supplemental oxygen, 18% ICU, and 12% invasive ventilation. Overall, 30-day mortality was 11%. Factors independently associated with ICU admission were male gender (OR 1.81; 95%CI 1.16–2.81), hypertension (OR 3.21; 95%CI 2.08–4.95), obesity (OR 2.38; 95%CI 1.51–3.7), oxygen saturation ≤93% (OR 6.45; 95%CI 4.20–9.92) and lymphopenia (OR 3.21; 95%CI 2.08–4.95). Factors independently associated with 30-day mortality included age ≥60 years-old (OR 2.68; 95% CI 1.63–4.43), oxygen saturation ≤93% (OR 3.19; 95%CI 1.97–5.16) and lymphopenia (OR 2.65; 95%CI 1.64–4.27). Conclusions This cohort validates crucial clinical data on patients hospitalized with SARS-CoV-2 in Argentina.

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