Table 4.

Intraclass correlation coefficients for P-SIM item scores

P-SIM item	ICC (n = 1002)
Item 1—itching	0.94
Item 2—redness	0.93
Item 3—skin pain	0.95
Item 4—burning	0.94
Item 5—scaling	0.91
Item 6—cracking	0.93
Item 7—dryness	0.94
Item 8—irritation	0.94
Item 9—sensitivity	0.95
Item 10—lesions	0.94
Item 11—thickening	0.94
Item 12—fatigue	0.98
Item 13—embarrassment	0.98
Item 14—choice of clothing	0.98

ICC intraclass correlation coefficient, P-SIM Psoriasis Symptoms and Impacts Measure