Limitations of Dutch Growth Research Foundation Commercial Software Weight Velocity for Age Standard Deviation Score

Objective: Rare disease Background: The commercial software for hospitals, Weight Velocity for Age Standard Deviation Score (SDSWVA), claims to document the growth and development of children, although published details are unavailable. The statisticsderived parameter SDSWVA includes the weight velocity at age t, WV(t) (weight gained between t and (t–1.23) years, divided by 1.23), and 3 standard weight velocity curves at average age AA, defined as AA=t–1.23/2 years. SDSWVA denotes the number of standard deviations that WV(t) deviates from the 0 SD weight velocity at AA. WV(t) yielded erroneous... Mehr ...