Results 11 to 20 of about 182,217 (266)

Considerations for crossover design in clinical study [PDF]

open access: yesKorean Journal of Anesthesiology, 2021
This article introduces a crossover design that is often used in clinical studies, with the advantage of comparing treatment effects within one study subject. In particular, the advantages and disadvantages of the two-period, two-sequence crossover design (2 × 2 or AB/BA crossover design), which is widely used in clinical practice, are identified, and
Chi-Yeon Lim, Junyong In
openaire   +3 more sources

Increase of 4-Hydroxybenzoic, a Bioactive Phenolic Compound, after an Organic Intervention Diet

open access: yesAntioxidants, 2019
Consumption of organic products is increasing yearly due to perceived health-promoting qualities. Several studies have shown higher amounts of phytochemicals such as polyphenols and carotenoids in foods produced by this type of agriculture than in ...
Sara Hurtado-Barroso   +5 more
doaj   +1 more source

Women have higher levels of CoQ10 than men when supplemented with a single dose of CoQ10 with monoglycerides omega-3 or rice oil and followed for 48 h: a crossover randomised triple blind controlled study

open access: yesJournal of Nutritional Science, 2022
Coenzyme Q10 (CoQ10), a lipid involved in ATP synthesis, exhibits very limited oral absorption, and its endogenous production decreases with ageing and with the occurrence of oxidative stress.
Sandrine Beaulieu   +2 more
doaj   +1 more source

A novel weighting method to remove bias from within-subject exposure dependency in case-crossover studies

open access: yesBMC Medical Research Methodology, 2021
Background Case-crossover studies have been widely used in various fields including pharmacoepidemiology. Vines and Farrington indicated in 2001 that when within-subject exposure dependency exists, conditional logistic regression can be biased.
Kiyoshi Kubota   +5 more
doaj   +1 more source

A novel crossover operator for genetic algorithm: Stas crossover [PDF]

open access: yesDecision Science Letters, 2023
The genetic algorithm (GA) is a natural selection-inspired optimization algorithm. It is a population-based search algorithm that utilizes the concept of survival of the fittest. This study creates a new crossover operator called “Stas Crossover”
Ratchadakorn Poohoi   +2 more
doaj   +1 more source

The use of baseline covariates in crossover studies [PDF]

open access: yesBiostatistics, 2009
It is our experience that in many settings, crossover trials that have within-period baseline measurements are analyzed wrongly. A "conventional" analysis of covariance in this setting uses each baseline as a covariate for the following outcome variable in the same period but not for any other outcome.
Kenward, Michael G., Roger, James H.
openaire   +3 more sources

Regional versus systemic dexmedetomidine as an adjuvant to lidocaine for intravenous regional anaesthesia in healthy volunteers: a randomized crossover study

open access: yesAnnals of Medicine, 2023
Background Dexmedetomidine enhances the quality and duration of lidocaine intravenous regional anaesthesia (IVRA). However, the two administration routes have not been directly compared regarding effects on tourniquet tolerance time with lidocaine IVRA ...
Xincheng Liao   +5 more
doaj   +1 more source

Inspiratory Flow Parameters Through Dry Powder Inhalers in Healthy Volunteers and Patients with Chronic Obstructive Pulmonary Disease (COPD): Device Resistance Does Not Limit Use in COPD

open access: yesInternational Journal of COPD, 2021
Rain Jõgi,1 Leena Mattila,2 Mikko Vahteristo,3 Aino Takala,2 Satu Lähelmä,4 Ville A Vartiainen,2 Ari Lindqvist5 1Tartu University Hospital, Lung Clinic, Tartu, Estonia; 2Medical Affairs, Orion Corporation, Espoo, Finland; 3Research Unit ...
Jõgi R   +6 more
doaj  

Bioequivalence Study of Two Tablet Formulations of Clonazepam 2 mg: A Randomized, Open-Label, Crossover Study in Healthy Mexican Volunteers Under Fasting Conditions

open access: yesNeurology and Therapy, 2023
Introduction The prevalence of neurological disorders is high among the Mexican population. Clonazepam is primarily indicated to treat panic disorders, certain kinds of epilepsy such as status epilepticus, childhood motor seizures (petit mal absence ...
Luis Genis-Najera   +1 more
doaj   +1 more source

Efficacy of the Orally Disintegrating Strip Sildenafil for the Treatment of Erectile Dysfunction: A Prospective, Randomized Trial

open access: yesSexual Medicine, 2021
: Introduction: Phosphodiesterase 5 inhibitors are the predominant treatment option for erectile dysfunction. Aim: This study evaluates the efficacy and safety of sildenafil orally disintegrating strips for the treatment of erectile dysfunction. Methods:
Premsant Sangkum, MD   +7 more
doaj   +1 more source

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