The phrase "assigned in a ratio" is correct and usable in written English.
It can be used when discussing the distribution or allocation of items, resources, or values in a proportional manner.
Example: "The resources were assigned in a ratio of 3:1 to ensure that each team had adequate support."
Alternatives: "allocated proportionally" or "distributed in a ratio".
Upon HDU admission, patients were randomly assigned in a ratio of 1 1 to be infused by the conventional insulin infusion system or by the optimised system with dedicated insulin infusion.
Each cluster will be randomly assigned in a ratio of 1 1.
Thirty participants who meet the eligibility criteria will be assigned in a ratio of 1 1 to the treatment group and control group.
Patients were randomly assigned in a ratio of 2 1 to receive either 2 mg of tesamorelin or matching placebo, administered by subcutaneous injection.
In this multicenter, randomized, double-blind, placebo-controlled trial 656 patients with active RA despite methotrexate therapy were assigned in a ratio of 2 :1 to additional treatment with abatacept (approximately 10 mg/kg) or placebo.
Film batches from screening sessions were randomly assigned in a ratio of 28 1 1 to one of three film-reading regimes: double reading and single reading with CAD, or double reading only, or single reading with CAD only.
The children were randomly assigned, in a 2 1 ratio, to undergo intrathecal administration of nusinersen at a dose of 12 mg (nusinersen group) or a sham procedure (control group) on days 1, 29, 85, and 274.
Male subjects with IGT recruited from health-screening examinees were randomly assigned in a 4 1 ratio to a standard intervention group (control group) and intensive intervention group (intervention group).
Patients were randomly assigned in a 1 1 ratio to receive apixaban or warfarin using a double-blind, double-dummy design.
Patients were randomly assigned, in a 1 1 ratio, to receive long-term supplemental oxygen (supplemental-oxygen group) or no long-term supplemental oxygen (no-supplemental-oxygen group).
METHOD: Thirty patients (mean age, 50 years) with civilian- or military-related PTSD enrolled in an 8-week evaluation of bupropion SR versus placebo assigned in a 2 1 ratio in addition to their usual pharmacological care.
