Vitamin D Status in Patients Operated for Primary Hyperparathyroidism: Comparison of Patients from Southern and Northern Europe

Table 5

Bone remineralisation after operation for primary hyperparathyroidism in patients with or without vitamin D deficiency (25-OH-D < 50 nmol/L). Change in absolute values in percent. Change in 𝑧-score in arithmetic difference. Medians (IQR). Kruskal-Wallis test.

BMD site	Vitamin D-deficiency	Vitamin D-sufficiency	P
	(25-OH-D < 50 nmol/L)	(25-OH-D ≥ 50 nmol/L)
ΔLumbar spine, absolute	3.5 (−0.5–7.0)	2.2 (−2.0–6.6)	0.12
ΔLumbar spine, 𝑧-score	0.4 (0.1–0.6)	0.3 (0.0–0.6)	0.40
ΔFemoral neck, absolute	2.8 (−0.8–7.3)	2.5 (−1.9–6.0)	0.47
ΔFemoral neck, 𝑧-score	0.3 (0–0.5)	0.2 (−0.1–0.3)	0.05
ΔTotal hip, absolute	2.7 (0–5.7)	1.00 (−1.4–4.8)	0.03
ΔTotal hip, 𝑧-score	0.3 (0.1–0.5)	0.2 (0.0–0.4)	0.01