cutpoint

Etymology

cut + point

noun

1. (topology) A point of a connected space whose removal causes the resulting space to be disconnected.
   Every point of a line is a cutpoint, but no point of a circle is a cutpoint.
2. (medicine) A cutoff point (cutoff value, threshold value), that is, a cutoff: the amount set by an operational definition as the transition point between states in a discretization or dichotomization.
   In 2007 the International Diabetes Federation (IDF) proposed single blood pressure (BP) cutpoints (systolic: ≥130 mm Hg and diastolic: ≥85 mm Hg) for the diagnosis of high blood pressure (HBP) in adolescents. Before this proposal, HBP had been defined as BP at or above the 95th percentile for age, sex, and height percentile (reference standard). In this study, we evaluated the risk for misclassification when using the IDF single-cutpoints criteria. 2017, P BrambillaA AndreanoL Antoliniet al., “How Accurate Is a Single Cutpoint to Identify High Blood Pressure in Adolescents?”, in Am J Epidemiol, volume 185, number 4, →DOI, →PMID, pages 295–303