The phrase "a severe group" is correct and usable in written English.
It can be used to describe a group that is strict, harsh, or serious in nature or behavior.
Example: "The committee was known as a severe group, enforcing rules with little tolerance for exceptions."
Alternatives: "a strict group" or "a harsh group".
Thirty-nine (33.9%) patients were classified as a severe group, based on their admissions to intensive care units or deaths due to the disease (mean±SD age = 39.45±12.8, 20 male and 19 female).
To discriminate metabolic alterations of OA at different stages, OA patients were divided into a mild group (K-L grade II or III) and a severe group (KL grade IV).
As there is no agreed cut off to define severity of pain or disability in the WOMAC literature, severity of WOMAC items was defined categorically by grouping WOMAC responders who scored "severe" or "extreme" on at least one item on the pain or physical function scales into a "severe" group.
The full case series was split into 3 severity-based subgroups: 1) Mild those 6 patients whose slope fell within the normal range (below the dotted line in Fig. 1 a); and the remainder were split into 2) a moderate group of 6 patients and 3) a severe group of 8 patients.
The patients in the RAVE study are likely to have a greater rate of progression to end points as they will be a more severe group with ARVD.
"I have a complicated, severe group of patients, but I will swear to you that very few wind up in hospitals," Dr. Thomashow said.
Therefore, if selection bias would have occurred, we have analyzed a more severe group of subjects.
However, the selection of a more severe group of patients is nondifferential and tends to bias the observed effect toward the null.
However, the selection of a more severe group of patients is non-differential among hospitals, which tends to bias the observed effect towards the null.
Addition of such a more severe group of patients to our sample would, therefore, have resulted in increased sensitivity values as relatively more cases would have been correctly classified.
29 In addition, a comparison of subjects with ERA with placebo-treated subjects from a jo-SpA study also yielded a similar outcome even if we acknowledge that the Mexican population enrolled by Burgos-Vargas et al might represent a more severe group of patients.
