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Presence of non blanchable erythema across the whole area determined by glass plate compression, n (%)*
| Healed group (n= 20) | Deteriorated group (n= 11) | χ2 | P value | |
|---|---|---|---|---|
| Positive | 7 (35·0) | 10 (90·9) | ||
| 8·957 | 0·007 | |||
| Negative | 13 (65·0) | 1 (9·1) | ||
Fisher exact probability test.
