Serum Fatty Acids and Risk of Cutaneous Melanoma: A Population-Based Case-Control Study

Table 1

Characteristics of study subjects.

	Cases		Controls
Characteristic	𝑛	(%)	𝑛	(%)
	51	(100)	51	(100)
Sex
Male	23	(44.1)	23	(44.1)
Female	28	(54.9)	28	(54.9)
Age
25–49 y	17	(33.3)	16	(31.4)
50–79 y	34	(66.7)	35	(68.6)
Educational attainment level
Elementary school or less	18	(35.3)	17	(33.3)
Middle school	8	(15.7)	8	(15.7)
High school	17	(33.3)	17	(33.3)
College or more	8	(15.7)	9	(17.7)
Phototype
I	3	(5.9)	1	(2.0)
II	25	(49.0)	16	(31.4)
III	21	(41.2)	29	(56.8)
IV	0	(0.0)	5	(9.8)
Missing	2	(3.9)	0	(0)
Sun exposure (days per year)
0	6	(11.8)	3	(5.9)
<15	23	(45.1)	10	(19.6)
15–30	16	(31.4)	27	(52.9)
>30	5	(9.7)	11	(21.6)
Missing	1	(2)	0	(0)
Life-time history of sunburns
0	21	(41.2)	33	(64.7)
1	24	(47.1)	14	(27.5)
2	2	(3.9)	2	(3.9)
>2	2	(3.9)	2	(3.9)
Missing	2	(3.9)	0	(0)