Exemplos de uso de Allocation concealment em Inglês e suas traduções para o Português
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Computer
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Allocation concealment;
Only 6 out of 24 studies reported allocation concealment.
Allocation concealment was successful.
The eligible trials were not blinded and treatment allocation concealment methods were not used.
The quality of the allocation concealment was adequate in three studies and unclear in the remainder.
Two review authors independently extracted data andrated quality of allocation concealment.
Studies classified as A and B, through allocation concealment analysis, were included.
The studies were classified in three categories A, B and C,in accordance with the allocation concealment.
Allocation concealment was not adequately described in one study; thus, the risk of bias was considered"uncertain" Table 3.
All studies had a risk of bias for uncertain how allocation concealment of the participants.
Randomization and allocation concealment represent the best way to minimize selection bias and certify the treatment effect.
For all methods,adequate implementation is paramount to ensure allocation concealment and to prevent manipulation and selection bias.
Category“C”: Means that the allocation concealment was inadequate, in which there are, for example, interleaving data, medical records numbers, birth dates, week days, etc.; and.
All evaluated studies presented uncertain or high risk for selection bias when the absence of randomization,masking, and allocation concealment was perceived.
Evaluating only studies with allocation concealment, the RR was 0.85 95% CI: 0.68 to 1.07, with identical results when we evaluated only blinded studies.
We rated blinding of participants and personnel(selection andperformance bias) and allocation concealment(selection bias) as low risk and unclear.
The exclusion criteria were as follows: studies with allocation concealment, inadequately described studies, studies of mixed populations asthma and COPD patients, and studies of interventions other than those under study.
In most studies selected,the information available in the articles related to the method used to generate the randomization sequence and allocation concealment was insufficient.
None of the studies presented description of random sequence generation, allocation concealment, description of losses and exclusions and analysis by intention to treat.
Category“B”: Means that the allocation concealment was not described, but the text mentions that the study is randomized, indicating that the allocation seems to be appropriate although there is no other available information;
Randomization of the three studies included in this review was completed by computer, allocation concealment was adequate and the analysis was based on intention to treat.
Yes Yes a Allocation concealment: Adequate randomization method described that prevents caregivers or investigators from interfering or identifying before randomization; Unclear randomization stated but no further information provided.
The internal quality of the studies was assessed using the allocation concealment criteria proposed by the Cochrane Collaboration and complemented by the Jadad et al. scale.
The exclusion criteria were studies which did not address adults and older adult patients, did not use hydrocolloid dressings, were published in years before 1994, and which were classified as C andD in the evaluation of allocation concealment.
The criteria evaluated were:appropriate sequence of data generation, allocation concealment, blinding, description of losses and exclusions and analysis by intention to treat.
The methodological quality of the studies selected for the review was evaluated by two independent reviewers LF and LN according to the following individual components:randomization, allocation concealment, blinding and intention-to-treat analysis.
To test the hypothesis was conducted a crossover clinical trial allocation concealment and randomization for the sequence of experimental phases was performed 24 hf individuals.
The allocation concealment is an important aspect in the design of a study, because when this procedure is appropriately carried out, one can prevent selection bias in the allocation of intervention, by protecting the allocation sequence until interventions are allocated Table 2.
Only one study clearly described the blinding patients and therapists,and the confidentiality of the allocation concealment, and four trials reported that the outcome evaluation was blind.
The absence of an explicit description of the allocation concealment- which could include terms such as central randomization, Internet randomization, randomization by telephone, or a clear statement confirming the allocation concealment- also failed to satisfy this criterion.