Accuracy of SCORTEN to predict the prognosis of Stevens-Johnson syndrome/toxic epidermal necrolysis: a systematic review and meta-analysis.

The rarity of the disease and the heterogeneity of the studies included are major limitations. Despite the overall remarkable accuracy displayed by SCORTEN, the influence of several factors, as comorbidities (e.g. renal impairment), involved body surface area and patient's age, seem of enough relevance to consider a redefinition of the scale.