Table 1.

Description of the characteristics of the dermatologists participating in the study and of their answers to the questions concerning their beliefs about oral photoprotectors.

			2. Do You Believe That These Drugs or Supplements (Oral Photoprotectors) May Have a Role in the Prevention of Skin Cancers?	3. If So, Which of These Drugs or Supplements Do You Believe May Play a Role in Systemic Photoprotection? Possible Answers: Astaxanthin, Β-Carotene, Nicotinamide, Vitamin D3, All of Them, None of Them.
			YES	β-Carotene	Nicotinamide	Vitamin D3	All of Them	None of Them
		N (column%)	N (row%)	N (row%)	N (row%)	N (row%)	N (row%)	N (row%)
Overall		108 (100)	92 (85.2)	2 (1.9)	37 (34.3)	3 (2.8)	63 (58.3)	3 (2.8)
Gender	Male	52 (48.1)	43 (82.7)	0	19 (36.5)	1 (1.9)	29 (55.8)	3 (5.8)
	Female	56 (51.9)	49 (87.5)	2 (3.6)	18 (32.1)	2 (3.6)	34 (60.7)	0
Years since end of training	<10	33 (30.6)	32 (97.0)	2 (6.1)	10 (30.3)	1 (3.0)	20 (60.6)	0
	10–19	28 (25.9)	26 (92.9)	0	13 (46.4)	2 (7.1)	13 (46.4)	0
	≥20	47 (43.5)	34 (72.3) *	0	14 (29.8)	0 (0.0)	30 (63.8)	3 (6.4)
Area	Northern	24 (22.2)	21 (87.5)	1 (4.2)	8 (33.3)	3 (12.5)	12 (50.0)	0
	Central	61 (56.5)	55 (90.2)	0	22 (36.1)	0 (0.0)	38 (62.3)	1 (1.6)
	Southern	23 (21.3)	16 (69.6) **	1 (4.3)	7 (30.4)	0 (0.0)	13 (56.5)	2 (8.7)
Workplace	Hospital	17 (15.7)	11 (64.7) ***	0	5 (29.4)	2 (11.8)	10 (58.8)	0
	University/research hospital	47 (43.5)	42 (89.4)	0	19 (40.4)	0	26 (55.3)	2 (4.3)
	Local health department	15 (13.9)	14 (93.3)	1 (6.7)	6 (40.0)	1 (6.7)	7 (46.7)	0
	Private practice	29 (26.9)	25 (86.2)	1 (3.4)	7 (24.1)	0	20 (69.0)	1 (3.4)

* p < 0.001 from chi-square test compared with the categories “<10” and “10–19” grouped together. ** p < 0.05 from chi-square test compared with the categories “Northern” and “Central” grouped together. *** p < 0.01 from chi-square test compared with the other categories grouped together.