Research Article
Dermoscopic Features of Psoriatic Nails and Their Correlation to Disease Severity
Table 3
Analysis of dermoscopic features in cases according to severity.
| | Dermoscopic feature | Group 1 (mild psoriasis) (n = 23) | Group 2 (moderate to severe psoriasis) (n = 27) | Test of significance |
| | Pitting | 19 (82.6%) | 24 (88.9%) | χ2 = 0.407 | |
| | Onycholysis | 17 (73.9%) | 24 (88.9%) | χ2 = 1.887 | |
| | Longitudinal striations | 11 (47.8%) | 21 (77.8%) | χ2 = 4.836 | |
| | Prominent capillaries | 11 (47.8%) | 17 (63%) | χ2 = 1.155 | |
| | Splinter hemorrhage | 14 (60.9%) | 12 (44.4%) | χ2 = 1.342 | |
| | Salmon patch | 10 (43.5%) | 13 (48.1%) | χ2 = 0.109 | |
| | Subungual hyperkeratosis | 7 (30.4%) | 16 (59.3%) | χ2 = 4.154 | |
| | Leukonychia | 4 (17.4%) | 9 (33.3%) | FET = 1.641 | |
| | Beaus lines | 5 (21.7%) | 7 (25.9%) | χ2 = 0.119 | |
| | Spotted lunula | 4 (17.4%) | 1 (3.7%) | FET = 2.585 | |
| | Crumbling | 3 (13%) | 2 (7.4%) | FET = 0.438 | |
| | Onychomadesis | 1 (4.3%) | 2 (7.4%) | FET = 0.206 | |
| | Melanonychia | 1 (4.3%) | 1 (3.7%) | FET = 0.013 | |
| | Transverse striations | 1 (4.3%) | 0 (0%) | FET = 1.198 | |
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: probability. Categorical data are expressed as number (%). χ2: chi-square test. FET: Fisher’s exact test. Statistically significant ( ). |
