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World J Diabetes. Jan 15, 2022; 13(1): 27-36
Published online Jan 15, 2022. doi: 10.4239/wjd.v13.i1.27
Table 1 International Working Group on the Diabetic Foot risk classification system
Group
Definition
Ulcer risk
Screening
0No LOPS and no PADVery low Once a year
1LOPS or PADLow Once every 6-12 mo
2LOPS + PAD or LOPS + FD or PAD + FDModerateOnce every 3-6 mo
3LOPS or PAD with one or more of the following: (1) History of a foot ulcer; (2) A lower extremity amputation (major or minor); and (3) ESRDHighOnce every 1-3 mo
Table 2 Preventive measures for diabetic foot ulcers

Preventive measures
1Avoid smoking
2Avoid walking barefoot/in socks without shoes/in thin-soled slippers
3Avoid hot ground and hot sand
4Inspect both feet and inside the shoes daily
5Wash the feet daily (carefully dry especially between the toes)
6Test water temperature before bath
7Lubricate dry skin and avoid chemicals
8Cut the toenails straight
9Do not remove callus
10Wear snug shoes (customize if feet have deformity)
11Change the socks daily
Table 3 Classification systems of diabetic foot ulcers
Classifications system
The evaluated parameters
University of Texas SystemDepth, infection, ischemia
WagnerDepth, necrosis
PEDISPerfusion, extent, depth, infection, sensation
SINBADSite, ischemia, neuropathy bacterial infection, area, depth
Threatened limb classification: WIfIWound characteristics, ischemia, foot infection
IWGDF/IDSA systemClinical manifestations, the severity of infection, PEDIS grade