Table 1.

Severity-of-illness score for toxic epidermal necrolysis (SCORTEN) [9].

Risk factor*	Score 0	Score 1	Our patients score
Age	<40 yr	≥40 yr	0
Associated cancer	No	Yes	1
Heart rate (beats/min) (HR)	<120	≥120	1
Serum BUN (mg/dL)	≤ 28	>28	1
Detached or compromised body surface	<10%	≥10%	1
Serum bicarbonate (mEq/L)	≥20	<20	0
Serum glucose (mg/dL)	≤250	>250	0
*More risk factors indicate a higher score and a higher mortality rate (%) as follows:			Total
0–1 = 3.2%			4
2 = 12.1%
3 = 35.3%
4 = 58.3%
≥5 = >90%