Table 3.

Classification of patients into different categories of vitamin D levels according to Endocrine Society's Guidelines. Green denotes, in each category, the method that categorizes the least patients into that particular category, while red denotes the method which categorizes most patients into that particular category.

25(OH)D (ng/mL)	DiaSorin	Elecsys	Lumipulse
	N (%)
<10	12 (23.5)	11 (21.2)	14 (27.4)
11–20	11 (21.5)	6 (11.8)	15 (29.4)
21–29	10 (19.6)	13 (25.5)	7 (13.7)
30–103	18 (35.3)	21 (41.2)	15 (29.4)

n, numbers of patients for each level; %, percentage of patients for each level.