Table 1.

Participant characteristics. UVR: ultraviolet radiation.

Characteristics		Group A UVR diaries (n=19), n (%)	Group B physical activity (n=55), n (%)
Age mean (range 18-35)		29.3	25.4
Gender
	Female	12 (63)	41 (75)
	Male	7 (37)	14 (25)
Highest completed education
	Completed high school	3 (16)	10 (18)
	Trade or technical certification or diploma	2 (10)	6 (11)
	University or college degree	14 (74)	39 (71)
Current work situation
	Employed full-time	9 (48)	12 (22)
	Employed part-time or casual	5 (26)	12 (22)
	Student	5 (26)	31 (56)
Is your main job now
	Mainly indoors	16 (84)	49 (89)
	Mainly outdoors	0 (0)	0 (0)
	About equal amounts indoors and outdoors	3 (16)	6 (11)
Eye color
	Blue or gray	8 (42)	15 (27)
	Green	3 (16)	6 (11)
	Brown	8 (42)	27 (49)
	Other	0 (0)	7 (13)
Skin color
	Fair	10 (53)	33 (60)
	Medium	8 (42)	15 (27)
	Olive/Dark	1 (5)	6 (11)
	Black	0 (0)	1 (2)
Would your skin burn in strong summer sun for 30 minutes without protection?
	My skin would not burn at all	3 (16)	7 (13)
	My skin would burn lightly	3 (16)	17 (31)
	My skin would burn moderately	10 (52)	18 (33)
	My skin would burn severely	3 (16)	13 (23)
Would your skin tan if you spend several weeks at the beach and you are often in the strong sun without any protection?
	My skin would not tan	1 (5)	6 (11)
	My skin would tan lightly	5 (26)	10 (18)
	My skin would tan moderately	9 (48)	24 (44)
	My skin would tan deeply	4 (21)	15 (27)