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Table 2 SCORTEN severity-of-illness score.

From: Toxic epidermal necrolysis and Stevens-Johnson syndrome

SCORTEN Parameter Individual score SCORTEN (sum of individual scores) Predicted mortality (%)
Age > 40 years Yes = 1, No = 0 0-1 3.2
Malignancy Yes = 1, No = 0 2 12.1
Tachycardia (> 120/min) Yes = 1, No = 0 3 35.8
Initial surface of epidermal detachment >10% Yes = 1, No = 0 4 58.3
Serum urea >10 mmol/l Yes = 1, No = 0 > 5 90
Serum glucose >14 mmol/l Yes = 1, No = 0   
Bicarbonate >20 mmol/l Yes = 1, No = 0