Examples of using Randomization process in English and their translations into Portuguese
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Ecclesiastic
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Ecclesiastic
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Computer
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Official/political
Randomization process was clearly described.
Six out of eight included trials addressed the randomization process.
Based on a randomization process 1:1, half of each professional group had the application available on their mobile phones.
Of these, full and informed consent was given for 98 to participate in the randomization process.
The randomization process was conducted by lot, being initially chosen patients who were part of the experimental group.
The investigators who collected vital signs from the patients were blinded to the randomization process.
Randomization process was performed by assessing the last hospital general registration number on each patient's medical files.
Methods: this project aims to include 96 patients that will be submitted to a triple-blind treatment after the randomization process.
At both sites, the randomization process was successful in producing groups with similar sociodemographic and clinical characteristics.
With regard to the selection control of participants,it was seen that all included studies mentioned performing the randomization process.
Most randomized clinical trials lacked the description of the randomization process and the individuals who were removed from the studied group.
The randomization process allowed the formation of homogeneous groups regarding most of the baseline characteristics, including age, gender, and diagnosis.
The description of the statistical design must clearly indicate the randomization process used, the number of replications and the experimental units.
The randomization process was performed by professionals from the Department of Epidemiology of the Public Health College, Universidade de São Paulo.
Patients, anesthesiologists, andinvestigators who collected the postoperative data were blinded to the randomization process and types of drugs used.
Alternate randomization process was used, where the first patient assisted was allocated in the anti-hypertensive group; the second, in the symptomatic group, and so on.
The best way to minimize selection bias, while certifying the treatment effect,is to perform the randomization process and allocation anonymity adequately.
In the randomization process, in the masking to the allocated treatment, in the random generation of number sequences, in the analysis, or even when the double-blind type of masking is not implemented.
Of the three studies that mentioned having assigned participants to the test andcontrol groups using a randomization process, only one adequately described how the process was carried out.
This may have happened because the randomization process is not perfect for small groups and, moreover, the audiological profile of the patients was not taken into account in this group selection process. .
Before the experiment begins, the testers will assign the members of the participant pool to their groups(control, intervention, parallel),using a randomization process such as the use of a random number generator.
One should emphasize that doctors were not part of the randomization process, therefore, they did not know for which group the patients were allocated, in order to avoid possible selection bias.
However, for questions on treatment and prevention, it has just been considered level V evidence, since it is retrospective and obviously for being subject to a memory bias,besides not including the randomization process and, therefore, being subject to a selection bias.
However, there are questions in the health area in which the randomization process would be unethical, such as, for example, investigating the possible occurence of lung cancer by randomizing individuals for smoking and non smoking.
Concerning the selection control of the participants,it was observed that all the studies included reported a randomization process; however, only one of the articles described the adopted process, despite it being an unsuitable method.
Some biases involved the randomization process, including random sequence generation, allocation concealment, and evidence of imbalance in the comparison groups at baseline, thereby compromising comparability between groups in some trials 16 16.
After the preoperative evaluation, the 68 volunteers were allocated into three groups using a block randomization process in Microsoft Excel 2007 conducted by an investigator blind to both the clinical data and the volunteers' assessment.
In the assessment of the studies through the Jadad scale, three obtained score three, as they were randomized,satisfactorily described the randomization process and reported on sample losses; two received score two, as they did not describe the randomization form.
Clinical studies may become corrupted accidentally or deliberately,in various ways: in the randomization process, in the masking to the allocated treatment, in the random generation of number sequences, in the analysis, or even when the double-blind type of masking is not implemented.
The interviewers, undergraduate and postgraduate students in Nutrition,were not involved in the randomization process and received theoretical and practical training on data collection, with an average duration of eight hours.