Table 2.
Characteristics of itch in vitiliginous lesions.
| Characteristics | n (%) |
|---|---|
| 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) |