Definition of erysipelas:
(1) sudden onset (< 24 hours)
(2) well-demarcated dermatitis
(3) associated with chills and/or fever
Patient selection: >= 15 years of age
High risk factors (odds ratio 14 to 19):
(1) lymphedema
(2) disruption of the skin barrier (leg ulcer, traumatic wound, excoriated leg dermatosis, pressure ulcer, plantar squamous lesion or toe-web interrigo)
Moderate risk factors (odds ratio 5 to 7):
(1) edema of the leg
(2) history of previous leg surgery
Low risk factors (odds ratios 1 to 2):
(1) obesity
Protective factors (odds ratio 0.6 to 0.7):
(1) sedentary work
(2) venous insufficiency
