Results 21 to 30 of about 51,352,550 (334)

Temporal profiles of viral load in posterior oropharyngeal saliva samples and serum antibody responses during infection by SARS-CoV-2: an observational cohort study

Lancet. Infectious Diseases (Print), 2020
Background Coronavirus disease 2019 (COVID-19) causes severe community and nosocomial outbreaks. Comprehensive data for serial respiratory viral load and serum antibody responses from patients infected with severe acute respiratory syndrome coronavirus 2
K. To, O. Tsang, W. Leung, A. Tam, Tak-chiu Wu, D. Lung, C. Yip, Jian-Piao Cai, J. Chan, T. Chik, Daphne Pui-Ling Lau, Chris Yau-Chung Choi, Lin-Lei Chen, W. Chan, Kwok-Hung Chan, J. D. Ip, A. C. Ng, R. W. Poon, Cuiting Luo, V. Cheng, J. F. Chan, I. Hung, Zhiwei Chen, Honglin Chen, K. Yuen   +24 more
semanticscholar   +1 more source

An observational comparative study of clinicoepidemiological profile of COVID-19 patients admitted in the tertiary care hospital during first and second wave on pandemic

Biomedical and Biotechnology Research Journal, 2023
Background: The World Health Organization declared COVID-19 a global pandemic on March 11, 2020. India confirmed its first case of COVID-19 on 30 January and within 8 weeks the total number of cases had crossed the 1000 mark.
Surendra Babu Darivemula, Chennakesavulu Dara, Triveni Sagar, Sudha Bala, Venkatesham Animalla   +4 more
doaj   +1 more source

Survival after postoperative morbidity: a longitudinal observational cohort study [PDF]

, 2014
Prolonged morbidity after surgery is associated with a risk of premature death for a longer duration than perhaps is commonly thought; however, this risk falls with time.
Emberton, M., Grocott, M.P.W., Haddad, F.S., Harris, S., Moonesinghe, S.R., Mythen, M.G., Rowan, K.M.   +6 more
core   +2 more sources

Case characteristics, resource use, and outcomes of 10 021 patients with COVID-19 admitted to 920 German hospitals: an observational study

The Lancet Respiratory Medicine, 2020
Background Nationwide, unbiased, and unselected data of hospitalised patients with COVID-19 are scarce. Our aim was to provide a detailed account of case characteristics, resource use, and outcomes of hospitalised patients with COVID-19 in Germany, where
C. Karagiannidis, C. Mostert, C. Hentschker, T. Voshaar, J. Malzahn, G. Schillinger, J. Klauber, U. Janssens, G. Marx, S. Weber-Carstens, S. Kluge, M. Pfeifer, L. Grabenhenrich, T. Welte, R. Busse   +14 more
semanticscholar   +1 more source

Persistence of somatic symptoms after COVID-19 in the Netherlands: an observational cohort study

The Lancet, 2022
Background Patients often report various symptoms after recovery from acute COVID-19. Previous studies on post-COVID-19 condition have not corrected for the prevalence and severity of these common symptoms before COVID-19 and in populations without SARS ...
A. Ballering, S. V. van Zon, T. O. Olde Hartman, J. Rosmalen   +3 more
semanticscholar   +1 more source

Development of a Methodological Quality Criteria List for Observational Studies: The Observational Study Quality Evaluation

Frontiers in Research Metrics and Analytics, 2021
Background: Existing study quality and risk of bias lists for observational studies have important disadvantages. For this reason, a comprehensive widely applicable quality assessment tool for observational studies was developed.
M. Drukker, Irene Weltens, Carmen F. M. van Hooijdonk, Emma Vandenberk, M. Bak   +4 more
semanticscholar   +1 more source

Nurse staffing and education and hospital mortality in nine European countries: a retrospective observational study.

Lancet, The, 2014
L. Aiken, D. Sloane, L. Bruyneel, K. Heede, P. Griffiths, R. Busse, M. Diomidous, J. Kinnunen, M. Kózka, E. Lesaffre, M. McHugh, Maria Teresa Moreno-Casbas, A. Rafferty, R. Schwendimann, A. Scott, C. Tishelman, T. Achterberg, W. Sermeus   +17 more
semanticscholar   +3 more sources

an observational study [PDF]

, 2016
Objective This study aimed to investigate total and device-specific screen viewing (SV) and its determinants in children aged 2 years and below. Design Cross-sectional study conducted in February 2014.
Anantharaman, Saradha, Chua, Hwee Ling, Dam, Rob M. van, Goh, Si Ning, Müller-Riemenschneider, Falk, Tan, Chuen Seng, Tay, Wei Rong, Teh, Long Hua, Wong, Pey Gein   +8 more
core   +4 more sources

An Observational Study on Two Wheeler Buying Choice [PDF]

, 2016
The end users in present day buying situation prefer to buy product or services which provide enduring benefits with add on services with affordable price.
Kannan, M. (M), Suriyanarayanan, S. (S)
core   +1 more source

Clinical and microbiological effect of a combination of hydroxychloroquine and azithromycin in 80 COVID-19 patients with at least a six-day follow up: A pilot observational study

Travel Medicine and Infectious Disease, 2020
Background We need an effective treatment to cure COVID-19 patients and to decrease virus carriage duration. Methods We conducted an uncontrolled, non-comparative, observational study in a cohort of 80 relatively mildly infected inpatients treated with a
P. Gautret, J. Lagier, P. Parola, V. Hoang, L. Meddeb, J. Sevestre, M. Mailhe, B. Doudier, Camille Aubry, S. Amrane, P. Seng, Marie Hocquart, C. Eldin, Julie Finance, V. E. Vieira, H. Tissot-Dupont, S. Honoré, A. Stein, M. Million, P. Colson, B. La Scola, V. Veit, A. Jacquier, J. Deharo, M. Drancourt, P. Fournier, J. Rolain, P. Brouqui, D. Raoult   +28 more
semanticscholar   +1 more source