Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study

Table 2

Associations of 25-hydroxyvitamin D with answers from a sun behaviour questionnaire.

Question number	Question content	Answer scores				𝑃 value
		0	1	2	3
1	Personal sun relationship	28 ± 6	31 ± 15	37 ± 19	38 ± 23	0.06
		𝑛=8	𝑛=60	𝑛=34	𝑛=9
2	Skin reaction to sun	28 ± 12	33 ± 16	35 ± 16	33 ± 20	0.25
		𝑛=17	𝑛=25	𝑛=49	𝑛=20
3	Scalp hair as a child	33 ± 15	34 ± 17			0.79
		𝑛=42	𝑛=69
4a	Memory of sunburns	33 ± 17	34 ± 16	34 ± 18		0.68
		𝑛=51	𝑛=39	𝑛=21
4b	Ever sunburns	18 ± 8	34 ± 17			0.07
		𝑛=4	𝑛=107
5a	Beach or open-air pools	31 ± 14	37 ± 19			0.05
		𝑛=63	𝑛=48
5b	Sunbathing at home	31 ± 14	38 ± 21			0.04
		𝑛=73	𝑛=38
5c	Gardening	35 ± 17	32 ± 16			0.37
		𝑛=68	𝑛=43
5d	Water sports or shipping	34 ± 17	31 ± 13			0.55
		𝑛=99	𝑛=12
5e	Other outdoor sports	30 ± 15	40 ± 18			0.003
		𝑛=74	𝑛=37
5f	Outdoor work	32 ± 16	36 ± 18			0.29
		𝑛=85	𝑛=26
5g	Holidays in sunny countries	29 ± 15	30 ± 16	34 ± 16	36 ± 17	0.07
		𝑛=13	𝑛=23	𝑛=21	𝑛=54
5h	Solarium	33 ± 17	34 ± 16			0.92
		𝑛=92	𝑛=19	𝑛=0
5i	Light or UV therapy	33 ± 16	35 ± 24			0.87
		𝑛=106	𝑛=5

25-hydroxyvitamin D data are shown in ng/mL as means ± standard deviation.
𝑃 values are derived from either Student’s t-test or from analysis of variance (ANOVA) with 𝑃 for trend.