Background Despite extensive evidence that COVID-19 symptoms may persist for up to a
year, their long-term implications for healthcare utilization and costs 6 months post …

Background There is insufficient information about risk factors for COVID-19 diagnosis and
adverse outcomes from low and middle-income countries (LMICs). Objectives We estimated …

Background and objective This study aims to describe the characteristics of patients with
COVID-19 in a state in northern Mexico and establish the comorbidities associated with …

Objectives Data on the economic burden of long COVID are scarce. We aimed to examine
the prevalence and medical costs of treating long COVID. Methods We conducted this …

Abstract The coronavirus disease 2019 (COVID-19) has caused over six million deaths
worldwide since its emergence in Wuhan China, factors associated with COVID-19 mortality …

Background Advanced age and comorbidities have been described to increase the risk of
mortality associated with COVID-19 infection. However, the degree to which comorbidities …

Background Novel coronavirus disease 2019 (COVID-19) is frequently compared with
influenza. The Hospitalized Adult Influenza Vaccine Effectiveness Network (HAIVEN) …

Aim To explore impacts of mild and severe COVID-19 on acute and long-term utilization of
primary care, inpatient-and outpatient specialist health care. Methods In all persons tested …

Background The current study was performed to evaluate risk factors for severe coronavirus
disease 2019 (COVID-19) outcomes among Medicare beneficiaries during the pandemic's …

Background This study aimed to identify the current risk factors for coronavirus disease 2019
severity and examine its association with medication use. Methods We used data from a …