The association of frailty with abnormal ankle–brachial index determinations is related to age: Results from the Atahualpa Project

The lesson of ankle-brachial index for long-term clinical outcomes: Time is not a line, but a series of now-points

“…Even the standardization of the position e sitting, supine, or standing e is often not reported in most studies; moreover, skills and training quality requirements regarding the professionals performing the test is acknowledged by the articles dictating recommendations and suggesting a greater expertise dissemination [13]. In this and in other studies, the possible confounding effect depending on the age of the individual subjects and the time of the assessment is not fully considered [14,15].…”