Table 1.

Summary statistics of psoriasis patients in the US population ages 20–59.

		Psoriasis
	No Psoriasis	History of health care provider diagnosis	Undiagnosed active psoriasis- conservative estimate1	Undiagnosed active psoriasis less conservative estimate2
Psoriasis prevalence (95%CI)	NA
Overall		3.15% (2.18, 4.53)	0.40% (0.19, 0.82)	2.28% (1.47, 3.50)
Women		1.62% (1.02, 2.55)		0.48% (0.22, 1.03)
Men		1.53% (0.97, 2.40)		1.8% (1.15, 2.8)
Gender % male (95%CI)	49.03% (47.69, 50.36)	48.61% (35.54, 61.86)	82.31% (25.62, 98.43)	79.1% (63.99, 88.96)
Mean age (95%CI)	38.91 (38.10, 39.72)	41.11 (38.80, 43.42)	44.06 (34.58, 53.54)	41.69 (38.74, 44.64)
Race
(% White)	68.79%	81.61%	79.94%	70.01%
(% Black)	12.16%	7.96%	12.19%	16.76%
(% Hispanic)	13.29%	6.53%	7.87%	4.44%
(% Other)	5.76%	3.9%	0	8.79%
Income ≤ median %3 (95%CI)	43.91% (39.49, 48.43)	37.37% (28.24, 47.49)	26.89% (4.78, 72.94)	51.63% (36.83, 66.16)
No advanced (post-high school) education % (95%CI)	42.59% (40.38, 44.83)	29.51% (19.58, 41.86)	57.17% (25.50, 83.89)	56.85% (45.58, 67.45)
Not Married (95%CI)	43.86% (40.45, 47.32)	31.79% (23.01, 42.09)	37.97% (11.62, 74.03)	47.10% (29.19, 65.79)
No health insurance (95%CI)	22.59% (20.44, 24.89)	16.15% (9.19, 26.83)	0	27.16% (14.63, 44.79)

Psoriasis patients with a history of health care provider diagnosis and patients with undiagnosed active psoriasis are compared to patients without psoriasis.

¹The conservative estimate of undiagnosed active psoriasis is determined by agreement of psoriasis by both dermatologists upon review of standardized photographs in a patient who reported no previous diagnosis of psoriasis by a health care provider

²Undiagnosed active psoriasis by less conservative estimate is determined by at least one dermatologist upon review of standardized photographs in a patient who reported no previous diagnosis of psoriasis by a health care provider

³Median income is $35,000 to $44,999