Table 1.

Group characteristics.

Baseline characteristics	Subjects assessed OBS; PTX (n; n)	Observation (OBS)		Parathyroidectomy (PTX)
		n Mean Median	±s.d. (25%; 75%)	n Mean Median	±s.d. (25%; 75%)
Gender (female; male)		50; 8		53; 8
Age at inclusion (years)	58; 61	61.4	(57.4; 67.8)	61.3	(57.1; 66.5)
BMI (kg/m²)	49; 47	26.4	(23.5; 29.8)	25.9	(24.4; 29.2)
Weight (kg)	50; 53	75.1	(±12.2)	75.2	(±11.1)
PTH (pmol/L)	58; 61	9.8	(8.0; 12.6)	10.1	(7.5; 12.0)
Calcium (alb.corr.) (mmol/L)	58; 61	2.63	(±0.11)	2.64	(±0.10)