uh.....26% have a deficiency. Another 31% have an insufficiency. The title says "most seniors have a deficiency".
Although often used interchangeably, vitamin D "insufficiency" and "deficiency" are defined differently. Vitamin D insufficiency is commonly defined as a [25(OH)D] level of less than 32 ng/mL; deficiency is defined as a 25(OH)D level of less than 20 ng/mL. Thus, patients who are vitamin D deficient are a subset of patients who are vitamin D insufficient.
The math seems to be correct. 25% + 36% = 61% = "most."
80 posted on 09/18/2015 12:16:22 PM PDT by CutePuppy
(If you don't ask the right questions you may not get the right answers)