Table 2. Epidermal thickness and inflammatory cell density in psoriasis and control groups.

Variable	Psoriasis group (n=24)	Control group (n=10)	p-value
Epidermal thickness (μm)			<0.001*
Mean±SD	729.19±331.37	215.28±109.21
Median	690.23	214.45
Range	210.34∼1,663.75	71.31∼434.76
Inflammatory cell (density/mm2)			<0.001*
Mean±SD	5,489.4±2,149.1	1,773.34±235.79
Median	4,963.2	1,768.6
Range	1,683.5∼9,683.5	1,368.9∼2,065.1

SD: standard deviation. ^*p<0.05.