Aims To estimate the association of smoking status with rates of (i) infection,(ii)
hospitalization,(iii) disease severity and (iv) mortality from SARS‐CoV‐2/COVID‐19 disease …

Introduction. Tobacco use increases risks for numerous diseases, including respiratory
illnesses. We examined the literature to determine whether a history of tobacco use …

Background: During the first wave of COVID-19, hydroxychloroquine (HCQ) was used off-
label despite the absence of evidence documenting its clinical benefits. Since then, a meta …

We aimed to investigate the genetic mechanisms associated with coronavirus disease of
2019 (COVID-19) outcomes in the host and to evaluate the possible associations between …

The literature remains scarce regarding the varying point estimates of risk factors for COVID-
19 associated mortality and hospitalization. This meta-analysis investigates risk factors for …

Objectives This multicenter, cross-sectional study aimed to investigate whether sex
differences persist among patients who have undergone bariatric surgery and tested …

Objectives Cigarette smoking is an established risk factor for illness severity and adverse
outcomes in patients with COVID-19. Alcohol drinking may also be a potential risk factor for …

Abstract The Coronavirus Disease 2019, commonly referred to as COVID-19, is responsible
for one of the deadliest pandemics in human history. The direct, indirect and lasting …

We present a summary of the main modifications to the “COVID-19 in Paediatrics” clinical
practice guideline made from its initial version, published in 2021, and the version published …

Presentamos el resumen de las principales modificaciones surgidas en la guía de práctica
clínica «COVID-19 en Pediatría» entre su versión inicial publicada en el año 2021 y la …