The phrase "ascertained regardless" is correct and usable in written English.
It can be used when emphasizing that something can be determined or established without consideration of other factors or conditions.
Example: "The results of the experiment were ascertained regardless of the initial assumptions made by the researchers."
Alternatives: "determined irrespective" or "established without regard".
Exposure information is mainly collected prospectively in medical records and is ascertained by the registry regardless of type of malformation.
Restoration of patient anatomy regarding length and offset, in concordance with preoperative planning, was ascertained instrumentally during surgery, regardless of the type of approach.
Regardless of whether ascertained by questionnaire or allergen level measurement, pets or pests had the same direction of association with levels of measured microbial biomarkers.
Obesity is associated with poorer overall and breast cancer survival in pre- and post-menopausal breast cancer, regardless of when BMI is ascertained.
However, a recent meta-analysis showed that higher BMI was associated with higher overall and breast cancer-specific mortality with a linear dose response, regardless of when BMI was ascertained 39.
The current systematic literature review and meta-analysis extends and confirms the associations of obesity with an unfavourable overall and breast cancer survival in pre and postmenopausal breast cancer, regardless of when BMI is ascertained.
Also, recent findings from a population-based study of older men found that rates of recurrent stroke were similar regardless of whether stroke was ascertained by self-report or hospital diagnosis [ 15].
The present systematic literature review and meta-analysis of follow-up studies clearly supports that, in breast cancer survivors, higher BMI is consistently associated with lower overall and breast cancer survival, regardless of when BMI is ascertained.
In conclusion, the present systematic literature review and meta-analysis extends and confirms the associations of obesity with an unfavourable overall and breast cancer survival in pre- and post-menopausal breast cancer, regardless of when BMI is ascertained.
Limb amputations were further ascertained on the basis of ICD discharge codes specifying amputation, regardless of the presence or absence of documented peripheral vascular disease (PVD).
