Table 1.

IWGDF 2019 Risk Stratification System3

CategoryRisk of ulcerationCharacteristicsFrequency of screening
0Very lowNo LOPS or PADAnnual
1LowLOPS or PAD6–12 months
2ModerateLOPS + PAD
LOPS + foot deformity
PAD + foot deformity		3–6 months
3HighLOPS or PAD + one or more of:

  • History of foot ulcer

  • History of amputation

  • End-stage kidney disease

1–3 months

  • Lops = loss of protective sensation; PAD = peripheral artery disease.