Table 1. Demographic and clinical characteristics of the analysis sample (n = 138).

Characteristic
Demographics
	Female sex, No. (%)		71	(51%)
	White race, No. (%)		137	(99%)
	Age (years), Mean (SD)		57.9	(13.2)
	Age group (years), No. (%)
		<30	3	(2%)
		30–39	9	(7%)
		40–49	21	(15%)
		50–59	46	(33%)
		60–69	38	(28%)
		70–79	14	(10%)
		80+	7	(5%)
	Education, No. (%)
		High school or less	26	(19%)
		Some college	79	(57%)
		College degree	33	(24%)
	Smoking status, No. (%)
		Current	10	(7%)
		Former	50	(36%)
		Never	77	(56%)
		Unknown	1	(1%)

Additional sun exposure characteristics are available in Table S1.