Background Mortality rates of coronavirus disease-2019 (COVID-19) continue to rise across
the world. The impact of several risk factors on coronavirus mortality has been previously …

Background This study applies an umbrella review approach to summarise the global
evidence on the risk of severe COVID-19 outcomes in patients with pre-existing health …

Background Long-term effects of COVID-19, also called Long COVID, affect more than 10%
of patients. The most severe cases (ie those requiring hospitalization) present a higher …

Background As the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
pandemic has remained in Latin America, Mexico has become the third country with the …

Objectives We conducted a systematic literature review and meta-analysis of observational
studies to investigate the association between diabetes, hypertension, body mass index …

Abstract The Spanish COPD Guidelines (GesEPOC) were first published in 2012, and since
then have undergone a series of updates incorporating new evidence on the diagnosis and …

The novel coronavirus (COVID-19) that was first reported at the end of 2019 has impacted
almost every aspect of life as we know it. This paper focuses on the incidence of the disease …

Convalescent plasma (CP) has emerged as a treatment for COVID-19. However, the
composition and mechanism of action are not fully known. Therefore, we undertook a two …

Methods We searched for studies reporting COVID-19 outcomes among CLD and non-CLD
patients in databases including Medline, EMBASE, ScienceDirect, Google Scholar, and …

Objectives The objective of this study was to estimate the association between tocilizumab
or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 …