Reconciling estimates of global spread and infection fatality rates of COVID‐19: an overview of systematic evaluations

JPA Ioannidis - European journal of clinical investigation, 2021 - Wiley Online Library
Background Estimates of community spread and infection fatality rate (IFR) of COVID‐19
have varied across studies. Efforts to synthesize the evidence reach seemingly discrepant …

Over-and under-estimation of COVID-19 deaths

JPA Ioannidis - European journal of epidemiology, 2021 - Springer
The ratio of COVID-19-attributable deaths versus “true” COVID-19 deaths depends on the
synchronicity of the epidemic wave with population mortality; duration of test positivity …

Assessing mandatory stay‐at‐home and business closure effects on the spread of COVID‐19

E Bendavid, C Oh, J Bhattacharya… - European journal of …, 2021 - Wiley Online Library
Abstract Background and Aims The most restrictive nonpharmaceutical interventions (NPIs)
for controlling the spread of COVID‐19 are mandatory stay‐at‐home and business closures …

Association of pre-existing comorbidities with mortality and disease severity among 167,500 individuals with COVID-19 in Canada: A population-based cohort study

E Ge, Y Li, S Wu, E Candido, X Wei - PloS one, 2021 - journals.plos.org
Background The novel coronavirus disease 2019 (COVID-19) has infected 1.9% of the world
population by May 2, 2021. Since most previous studies that examined risk factors for …

Government responses and COVID-19 deaths: Global evidence across multiple pandemic waves

T Hale, N Angrist, AJ Hale, B Kira, S Majumdar… - PloS one, 2021 - journals.plos.org
We provide an assessment of the impact of government closure and containment measures
on deaths from COVID-19 across sequential waves of the COVID-19 pandemic globally …

Difference in mortality among individuals admitted to hospital with COVID-19 during the first and second waves in South Africa: a cohort study

W Jassat, C Mudara, L Ozougwu, S Tempia… - The Lancet Global …, 2021 - thelancet.com
Background The first wave of COVID-19 in South Africa peaked in July, 2020, and a larger
second wave peaked in January, 2021, in which the SARS-CoV-2 501Y. V2 (Beta) lineage …

Risk factors for severity on admission and the disease progression during hospitalisation in a large cohort of patients with COVID-19 in Japan

M Terada, H Ohtsu, S Saito, K Hayakawa, S Tsuzuki… - BMJ open, 2021 - bmjopen.bmj.com
Objectives To investigate the risk factors contributing to severity on admission. Additionally,
risk factors of worst severity and fatality were studied. Moreover, factors were compared …

Clinical features and outcomes of COVID-19 in older adults: a systematic review and meta-analysis

S Singhal, P Kumar, S Singh, S Saha, AB Dey - BMC geriatrics, 2021 - Springer
Background Few studies have focused on exploring the clinical characteristics and
outcomes of COVID-19 in older patients. We conducted this systematic review and meta …

Infection fatality rate of COVID-19 in community-dwelling elderly populations

C Axfors, JPA Ioannidis - European Journal of Epidemiology, 2022 - Springer
This mixed design synthesis aimed to estimate the infection fatality rate (IFR) of Coronavirus
Disease 2019 (COVID-19) in community-dwelling elderly populations and other age groups …

Global and national declines in life expectancy: An end‐of‐2021 assessment

P Heuveline - Population and development review, 2022 - Wiley Online Library
Timely, high‐quality mortality data have allowed for assessments of the impact of the novel
coronavirus disease 2019 (COVID‐19) on life expectancies in upper‐middle‐and high …