Results 31 to 40 of about 44,113 (283)

Experimental investigation of the effect of a step and wedge on the performance of a high-speed craft in calm water and statistical analysis of its seakeeping in irregular waves

open access: yesAIP Advances, 2020
Analysis of the hydrodynamic performance of a high-speed craft in calm water and seakeeping in irregular waves have attracted the attention of many researchers.
Sayyed Mahdi Sajedi, Parviz Ghadimi
doaj   +1 more source

Effectiveness of Seasonal Malaria Chemoprevention in children under 10 years of age in Senegal: a stepped-wedge cluster-randomized trial [PDF]

open access: yes, 2016
This study was done to determine the effectiveness of Seasonal Malaria Chemoprevention in Senegalese children up to 10 years of age using a stepped-wedge design.
Milligan, Paul
core   +2 more sources

Improving HPV Vaccination Rates: A Stepped-Wedge Randomized Trial [PDF]

open access: yesPediatrics, 2020
OBJECTIVES: To evaluate the effectiveness of a stepped-wedge randomized trial of Development of Systems and Education for Human Papillomavirus Vaccination (DOSE HPV), a multilevel intervention. METHODS:
Rebecca B, Perkins   +13 more
openaire   +2 more sources

The impact of varying cluster size in cross-sectional stepped-wedge cluster randomised trials

open access: yesBMC Medical Research Methodology, 2019
Background Cluster randomised trials with unequal sized clusters often have lower precision than with clusters of equal size. To allow for this, sample sizes are inflated by a modified version of the design effect for clustering.
James Thomas Martin   +2 more
doaj   +1 more source

Evaluating the performance of Bayesian and restricted maximum likelihood estimation for stepped wedge cluster randomized trials with a small number of clusters

open access: yesBMC Medical Research Methodology, 2022
Background Stepped wedge trials are an appealing and potentially powerful cluster randomized trial design. However, they are frequently implemented with a small number of clusters.
Kelsey L. Grantham   +4 more
doaj   +1 more source

Impact of early initiation versus national standard of care of antiretroviral therapy in Swaziland's public sector health system : study protocol for a stepped-wedge randomized trial [PDF]

open access: yes, 2017
Background: There is robust clinical evidence to support offering early access to antiretroviral treatment (ART) to all HIV-positive individuals, irrespective of disease stage, to both improve patient health outcomes and reduce HIV incidence. However, as
Barnighausen, Till   +11 more
core   +5 more sources

HELP! Problems in executing a pragmatic, randomized, stepped wedge trial on the Hospital Elder Life Program to prevent delirium in older patients

open access: yesTrials, 2017
Background A pragmatic, stepped wedge trial design can be an appealing design to evaluate complex interventions in real-life settings. However, there are certain pitfalls that need to be considered.
Noor Heim   +5 more
doaj   +1 more source

Design of trials for interrupting the transmission of endemic pathogens [PDF]

open access: yes, 2016
Many interventions against infectious diseases have geographically diffuse effects. This leads to contamination between arms in cluster-randomized trials (CRTs).
Hiscox, Alexandra   +6 more
core   +3 more sources

Field efficacy evaluation and post-treatment contamination risk assessment of an ultraviolet disinfection and safe storage system. [PDF]

open access: yes, 2015
Inconsistent use of household water treatment and safe storage (HWTS) systems reduces their potential health benefits. Ultraviolet (UV) disinfection is more convenient than some existing HWTS systems, but it does not provide post-treatment residual ...
Gruber, Joshua S   +3 more
core   +2 more sources

Applying thematic synthesis to interpretation and commentary in epidemiological studies: identifying what contributes to successful interventions to promote hand hygiene in patient care [PDF]

open access: yes, 2020
Objectives: Hand hygiene is considered the most important preventive measure for healthcare associated infections, but adherence is suboptimal. We previously undertook a Cochrane Review which demonstrated that interventions to improve adherence are ...
Birgand   +9 more
core   +2 more sources

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