Table 3.

Patient characteristics.

		Location
		Wuerzburg	Munich	Oldenburg	Overall
Sex	Female	47	52	10	109
	Male	54	56	6	116
Age	Mean	51.07	37.8	54.2	44.94
	Range	15–84	8–88	19–83	8–88
No. of Tumours	Malignant	34	38	11	83
	Benign	67	70	5	142
Vit D	Mean	20.59	22.55	18.91	21.43
	Median	17	21	13.55	19
PTH	Mean	42.86	36	35.53	38.09
	Median	37.1	32	31	34.2
Calcium	Mean	2.41	2.40	2.41	2.41
	Median	2.4	2.42	2.44	2.41
Number/Percentage of Patients Vit D	Sufficient	24/24%	26/24%	3/19%	53/24%
	Insuffcient	20/20%	33/31%	2/13%	55/24%
	Deficient	57/56%	49/45%	11/68%	117/52%
Patients per Season/Mean Vit D per Season	Spring	41/16.17	33/20.58	3/11.1	77/17.86
	Summer	17/31.53	36/26.16	4/23.1	57/27.54
	Autumn	21/24.57	22/23.45	4/24.78	47/24.06
	Winter	22/16.59	17/17.55	5/16.56	44/16.95