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Table 1 Study definitions

From: The laboratory risk indicator for necrotizing fasciitis (LRINEC) scoring: the diagnostic and potential prognostic role

Laboratory Risk Indicator For Necrotizing Fasciitis

Variable (units)

Score points

C-Reactive Protein (CRP) (mg/L)

 <150

 >150

0

4

White blood cell count (per mm3)

 <15

 15-25

 >25

0

1

2

Hemoglobin (g/dl)

 >13.5

 11-13.5

 <11

0

1

2

Serum Sodium (mmol/L)

 

≥135

<135

0

2

Serum Creatinine (mg/dl)

 ≤1.6

 >1.6

0

2

Serum Glucose (mg/dl)

 ≤180

 >180

0

1

Types of NF based on microorganisms

 Type I

NF comprised of synergistic polymicrobial infection

 Type II

NF is caused by monomicrobial gram positive organisms

 Type III

NF involves gram negative monobacteria usually marine-related organisms

 Type IV

NF is caused by fungal infection