Epidemiology of hospitalized patients with COVID-19 in a tertiary care hospital.

Torre, Guadalupe Maza-De La; Montelongo-Mercado, Edgardo A; Noyola-Villalobos, Héctor F; García-Ruiz, Antonio; Hernández-Díaz, Sergio; Santiago-Torres, Martha; Moreno-Delgado, Luis F; Carrera-Altamirano, Ricardo; Muñoz-Monroy, Omar E; Martínez-Cuazitl, Adriana; Martínez-González, Mayra A; Vázquez-Medina, Martín U; Alvarado-Uribe, Óscar; Torres-Vázquez, Julián; Figueroa-Peña, Aldo; Martínez-Salazar, Iván N

INTRODUCTION COVID-19, caused by the betacoronavirus SARS-CoV-2, has overwhelmed the world's health systems. OBJECTIVE To describe the epidemiological characteristics of patients treated in a tertiary care hospital. METHODS A retrospective cohort study of patients diagnosed with or suspected of having COVID-19 from March 23 to July 31, 2020 was conducted. RESULTS 4,401 patients were hospitalized at Central Military Hospital, out of which 35 % were beneficiaries, 26 % civilians, 28 % active military personnel, and only 11 %, retired military personnel. Male gender predominated, both in hospitalized patients and in those who died, as well as the O+ group and absence of comorbidities; among the observed comorbidities, the main ones were overweight and diabetes. Hospitalized patients' median age was 49 years, while median age of those who died was 62 years; women older than 51 years had a higher risk of dying. Adjusted case fatality rate was 18.5 %; 50 % died within the first six days. CONCLUSIONS In this study, the epidemiological characteristics and main comorbidities in Mexican patients with SARS-CoV-2 infection were identified.