Parathormone Levels in a Middle-Eastern Healthy Population Using 2^nd and 3^rd Generation PTH Assays

Table 2

Distributions of 2^nd generation PTH and 3^rd generation PTH according to dichotomized 25-OH vitamin D values (between 20 and 30 ng/ml and ≥30 ng/ml, respectively).

	2nd generation PTH (pg/mL)		3rd generation PTH (pg/mL)
	20 < 25(OH)D < 30 (ng/mL)	25(OH)D ≥ 30 (ng/mL)	20 < 25(OH)D < 30 (ng/mL)	25(OH)D ≥ 30 (ng/mL)
Percentiles
2.5	19.7	19.7	9.1	8.4
5	23.2	24.9	9.9	12.6
10	28.0	28.2	13.2	13.4
25	35.5	33.7	17.6	17.7
50	50.7	48.4	24.0	23.5
75	66.0	67.5	30.5	30.5
90	88.1	84.8	38.3	37.0
95	103.0	92.3	44.0	41.7
97.5	110.5	110.7	50.2	45.4
value (U test)	0.696		0.917

U test: Mann–Whitney U test.