The phrase "a preference group" is correct and usable in written English.
It can be used to refer to a specific group of individuals who share similar preferences or choices, often in contexts like marketing, social studies, or organizational behavior.
Example: "The survey identified a preference group among consumers who favor eco-friendly products over conventional ones."
Alternatives: "a choice group" or "a favored group".
The inclusion of a parallel preference group alongside a randomised controlled trial may increase the sample size, but has cost and resource implications.
Although practically feasible, the benefit of a parallel preference group was undermined in this trauma trial, due to a large majority of patients preferring non-operative management.
In the Democratic caucuses, voters must stand up to join a candidate preference group, openly expressing their vote.
Including a parallel patient preference group to create a comprehensive cohort of patients has been suggested as a way of increasing the power of such trials.
Having a parallel patient preference group should improve recruitment and may provide a more precise estimate of effect size when analysed as a single cohort, due to a larger sample size.
In each habitat, there were 285 growth parameters: 272 parameters for means of τ per species, 12 hyperparameters, a pair for each preference group, plus the residual parameter.
For example, the flow diagram of a parallel group trial of minimal surgery compared with medical management for chronic gastro-oesophageal reflux also included a parallel non-randomised preference group (see fig 3).
In addition, combined models were run: first, all habitats combined, with preference groups separated, producing a single mean for each preference group across all habitats; and second, preference groups combined but habitats separated.
The three-monthly preference group had a score of 31.8, the six-monthly preference group of 32.2, the randomised three-monthly group of 31.9 and the six-monthly group of 31.8.
Among current smokers, the combined moderate-high LPA and vegetable or mixture of vegetables and meat preference group showed a 40% reduced risk of lung cancer (aRR, 0.60; 95%CI, 0.47 0.76) compared with the combined low LPA and meat preference group.
