TABLE 1.

Summarized clinical data of the 74 patients. Age is described as mean ± standard deviation, and time of disease is displayed as median and interquartile range. All other variables are displayed as relative and absolute frequency (outside and inside the parentheses, respectively)

Gender
	Male		55.4% (41)
	Female		44.6% (33)
Age (years)
	Mean		47.69±14.99
	Range		13.0-92.0
Time of disease (years)
	Median		14
	Interquartile range		9,0-20,0
Comorbid conditions
	Yes		62.2% (46)
	No		37.8% (28)
Clinical forms of disease
	Arthropathic		81.1% (60)
	Vulgar		16.2% (12)
	Palmoplantar		1.4% (1)
	Pustular		1.4% (1)
Familial history for psoriasis
	Positive		10.85% (8)
	Negative		89.12% (66)