Research Article
Prevalence and Clinical Characteristics of Itch in Vitiligo and Its Clinical Significance
Table 2
Characteristics of itch in vitiliginous lesions.
| Characteristics | (%) |
| Prevalence of itch | 81 (20.2), 95% CI (16.3–24.4) | Intensity of itch in vitiligo (VAS), median (range) | 5 (1–10) | Intensity of itch in insect bite (VAS), median (range) | 5 (0–10) | Frequency of itch | | (i) Always | 4 (4.9) | (ii) Often | 77 (95.1) | Aggravating factors | | (i) Hot environment | 40 (49.4) | (ii) Dry skin | 47 (58.0) | (iii) Sunlight | 20 (24.7) | (iv) Cold environment | 13 (16.1) | (v) Seafood | 7 (8.6) | Alleviating factors | | (i) Topical corticosteroids | 45 (55.6) | (ii) Shower | 31 (38.2) | (iii) Cold environment | 21 (25.9) | (iv) Oral antihistamines | 8 (9.9) | (v) Phototherapy | 5 (6.2) | Relationship of itch and onset of lesion(s) | | (i) Itch before onset | 39 (48.1) | Day, median (range) | 3 (1–60) | (ii) Itch after onset | 37 (45.7) | Day, median (range) | 1 (0.5–30) | (iii) Uncertain | 5 (6.2) | Itch sensory qualities | | (i) Tingling | 51 (63.0) | (ii) Crawling | 5 (6.2) | (iii) Burning | 7 (8.7) | (iv) Pinching | 1 (1.2) | (v) Tingling + crawling | 5 (6.2) | (vi) Tingling + burning | 4 (4.9) | (vii) Tingling + electric discharge | 1 (1.2) | (viii) Tingling + tickling | 2 (2.5) | (ix) Tingling + crawling + burning | 4 (4.9) | (x) Crawling + electric discharge | 1 (1.2) | Severity of itch | | (i) Mild itch (VAS > 0 to <3.0) | 23 (28.4) | (ii) Moderate itch (VAS ≥ 3.0 to <7.0) | 35 (43.2) | (iii) Severe itch (VAS ≥ 7.0 to 10). | 23 (28.4) |
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