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Prevalence of fissured tongue and geographic tongue in patients with psoriasis (PG) and healthy controls (HC).
| Oral lesion | PG n = 348 (%) |
HC n = 348 (%) |
Odds ratio (95% CI) | P * |
|---|---|---|---|---|
| Fissured tongue | 125 (36%) | 70 (20%) | 3.45 (2.44–4.91) | <0.001 |
| Geographic tongue | 43 (12%)** | 10 (3%)** | 4.76 (2.30–10.8) | 0.002 |
*Fisher's exact test, 2-tailed; CI: confidence interval.
**80% of patients had both geographic tongue and fissured tongue.
