cliot (version 1.0.0)

pedis_diabetic_foot_score: PEDIS Score for Diabetic Foot Ulcers

Description

Calculates the PEDIS Score to predict the 6-month risk of non-healing, amputation, or mortality in patients with diabetic foot ulcers. The score aggregates five domains: Perfusion, Extent (size), Depth, Infection, and Sensation.

Usage

pedis_diabetic_foot_score(perfusion_grade, extent_cm2, depth_grade,
                          infection_grade, sensation_grade)

Value

A list containing:

PEDIS_Score

The calculated total score (Range 0-12).

Risk_Assessment

Interpretation of risk (High Risk >= 7).

Arguments

perfusion_grade

Numeric. IWGDF Perfusion Grade (1-3). 1: No PAD (Score 0). 2: PAD but no CLI (Score 1). 3: Critical Limb Ischemia (Score 2).

extent_cm2

Numeric. Area of the ulcer in cm^2. 0: Intact (Score 0). <1 cm^2 (Score 1). 1-3 cm^2 (Score 2). >3 cm^2 (Score 3).

depth_grade

Numeric. Depth of the ulcer. 0: Intact (Score 0). 1: Superficial (Score 1). 2: Fascia, muscle, or tendon (Score 2). 3: Bone or joint (Score 3).

infection_grade

Numeric. IWGDF Infection Grade (1-4). 1: None (Score 0). 2: Mild/Surface (Score 1). 3: Moderate/Abscess/Fasciitis (Score 2). 4: Severe/SIRS (Score 3).

sensation_grade

Numeric. Sensation status. 1: Intact (Score 0). 2: Loss of sensation (Score 1).

References

Chuan F, Tang K, Jiang P, et al. Reliability and validity of the perfusion, extent, depth, infection and sensation (PEDIS) classification system and score in patients with diabetic foot ulcer. PLoS One. 2015;10(4):e0124739. doi:10.1371/journal.pone.0124739

Examples

# Example 1: High Risk
# PAD (2->1), >3cm2 (3), Deep (2), Moderate Infection (3->2), No Sensation (2->1)
# Score = 1 + 3 + 2 + 2 + 1 = 9
pedis_diabetic_foot_score(2, 4.0, 2, 3, 2)

# Example 2: Low Risk
# No PAD (1->0), <1cm2 (1), Superficial (1), No Infection (1->0), Intact Sensation (1->0)
# Score = 0 + 1 + 1 + 0 + 0 = 2
pedis_diabetic_foot_score(1, 0.5, 1, 1, 1)