Exact(1)
The abstraction of the laboratory data from EMRs instead of a strict measurement protocol was motivated by the pragmatic nature of the trial, but in the low proportion of subjects with such data at the end of the study reduced the power (despite reaching the target sample size) and could introduce bias, as assessments were not prescribed randomly.
Similar(59)
To test this hypothesis, we devised what we called Strategy 3, which prescribes to randomly select the pinned nodes at each iteration (independently from the selection at previous iterations).
In the study, conducted at the University of Alabama in Birmingham, 70 adults, ages 60-75, werandomlymly prescribed different weight-training protocols, of varying intensity levels, lasting 30 weeks.
To assess the effectiveness of Cross Action Pro-Health® versus commonly prescribed toothbrushes, two randomly assigned groups of 23 orthodontic patients each, were evaluated.
Two groups of patients, matched for similar mean glomerular filtration rate value and nutritional status, were studied: a low-protein diet (0.6 g/kg/d) was randomly prescribed to 35 patients, whereas in the other 34 patients a free diet intake was maintained for 12 months.
For physicians who never or rarely prescribed diuretics, we randomly selected two patients who were started on alternate treatment.
Scenario 1. Assume that in 1667, 3 out of 4 newborns were randomly prescribed rapamycin for life.
All participants followed their randomly prescribed diets for 24 weeks, after which a further blood sample was collected and anthropometry measured.
After a 4-6 week run-in period, wherein a baseline diet is prescribed, women are randomly allocated to (1) a diet group, (2) an exercise group or (3) a control group.
Each cluster (each dialysis clinic) will be randomly prescribed a number and the five clinics with the 5 lowest numbers will be designated into Group 1 (receiving 36 weeks of the exercise intervention), numbers 6 10 will be allocated to Group 2 (receiving 24 weeks of the exercise intervention) and the final 5 clinics will be allocated to Group 3 (receiving 12 weeks of the exercise intervention).
Within the prescribed geocode, households were randomly identified using the "spin the bottle" method.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com