Table 1.

Potential cut-off points of the chosen indices to include in the definition of mild and severe psoriasis.

	Index	P5	P10	P90	P95	Min	Max
Mild Psoriasis	PASI	0.3	0.6	3.5	3.8	0	5.6
	BSA	0.2	0.4	4	5	0	7
	sPGA	1	1	2	2	0	3
	DLQI	0	0	4	5	0	17
	Itching VAS	0	0	5	7	0	8
Severe Psoriasis	PASI	11	12	31.2	35	10	44
	BSA	10	11	63.5	66	8	90
	sPGA	3	3	4	4	2	4
	DLQI	1	4	25	25	1	29
	Itching VAS	3	4	10	10	0	10

Abbrev. min, minimum; max, maximum.