The phrase "are categorised as normal" is correct and usable in written English.
It can be used when classifying or describing something that falls within a standard or typical range.
Example: "In this study, the results of the participants are categorised as normal based on their responses to the survey."
Alternatives: "are classified as normal" or "are deemed normal".
The scores are categorised as normal (0 7), mild (8 10), moderate (11 14) and severe (15 21) anxiety and/or depression, respectively.
A study in Danish general practice has revealed that, if GPs are allowed simply to categorise the first presentation of cancer, 50% are categorised as alarm symptoms, 20% are serious, but cancer nonspecific symptoms and 30% are categorised as normal vague symptoms (Jensen et al, 2014).
Patients were categorised as normal, pre-frail or frail using the SHARE-FI tool [ 24].
Twentypercentt of those who were overweight were categorised as normal weight using self-reported weight and height (see Table 2).
Because of the known association between high leptin and BMI, subjects were categorised as normal weight (BMI≤24.9) or overweight (BMI≥25.0).
We also studied 51 people who did not practise any sport either sporadically or for pleasure and who were categorised as normal.
Although both control and IBS biopsies were categorised as normal on standard histology and mucosal endoscopic views were normal, the CD3 count and c-kit expression were both significantly higher in the IBS group.
20 BMI (kg/m) was calculated from the formula weight/(height), and the patients were categorised as normal (18.5 23 kg/m), overweight (23 27.5 kg/m) or obese (≥27.5 kg/m), based on BMI values for Asian populations.
CT scan results were categorised as normal (no abnormality reported on CT scan), isolated skull fracture or intracranial injury (ICI) (injury to the brain or extra-axial structures) with or without skull fracture.
A composite variable (normal versus psychological distress) was created in which participants who reported symptoms of depression, anxiety or stress regardless of severity was grouped together and participant's whose responses were categorised as normal for depression, anxiety and stress were similarly grouped.
Diastolic function was categorised as normal, impaired relaxation (grade I), pseudo normal filling (grade II) or restrictive filling (grade III) by a combination of age-corrected values of E/A velocity ratio, the E-deceleration time, and S/D (see Table 1) [ 26].
