PTH and osteoporosis: There was no difference in the median [IQR] levels of vitamin D and parathyroid hormone in patients with normal bone mineralization, osteopenia, and osteoporosis (29.3 [26.0–34.1], 28.9 [23.9–29.5], 26.5 [23.8–30.4] pg/mL (P = 0.51) and 39.9 [26.5–52.8], 30.1 [27.9–32.7], 44.8 [32.0–74.0] ng/mL (P = 0.20), resp).