Prevalence and Clinical Characteristics of Itch in Vitiligo and Its Clinical Significance

Table 4

Koebner phenomenon (KP) between itch and nonitch groups.

Koebner phenomenon	Itch; ( = 81)	Nonitch; ( = 321)
KP, (%)	50 (67.9)	175 (54.52)	0.243
KP type I	35 (43.2)	110 (34.3)	0.134
(i) Cutting/scratching	28 (34.6)	86 (26.8)	0.165
(ii) Rubbing	35 (8.7)	24 (7.5)	0.082
(iii) Chemical/heat/cold	5 (6.2)	16 (5.0)	0.588
(iv) Pressure	5 (6.2)	8 (2.5)	0.094
(v) Previous skin disease	4 (4.9)	11 (3.4)	0.521
KP type II	43 (53.1)	141 (43.9)	0.139
(i) KP type IIa	19 (23.46)	76 (23.8)	0.967
(ii) KP type IIb	32 (39.5)	92 (28.9)	0.059
KP type III	1 (1.23)	4 (1.25)	1.000