Prevalence, Screening Practices and Risk Stratification for Diabetic Foot Complications in Primary Healthcare Clinics: A Cross-Sectional Study in Gauteng Province, South Africa
Abstract
1. Introduction
2. Materials and Methods
2.1. Research Area
2.2. Study Population
2.3. Research Participants
2.4. Study Questionnaire
2.5. Data Collection Procedure
2.6. Data Analysis
3. Results
3.1. Multimorbidity and Comorbidities
3.2. Recorded Diabetic Foot Complications or Risk Factors
3.3. Diabetic Screening
3.4. Diabetic Foot Risk Stratification
4. Discussion
5. Conclusions
Study Limitations
Supplementary Materials
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
| CHC | Community healthcare centre |
| DFU | Diabetic foot ulcer |
| DFC | Diabetic foot complications |
| DRFLEA | Diabetic-related foot and lower extremity amputation |
| LOPS | Loss of protective sensation |
| RSA | South Africa |
| PHC | Primary healthcare |
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| Variable | Type | Frequency | % | p-Value |
|---|---|---|---|---|
| Population group | Black | 411 | 69% | NC |
| Asian | 30 | 5% | NC | |
| Mixed-race | 72 | 12% | NC | |
| White | 84 | 14% | NC | |
| Sex | Male | 263 | 44% | 0.003 |
| Females | 334 | 56% | 0.281 | |
| Duration of diabetes | ≤1 year | 36 | 6% | 0.251 |
| 1–5 years | 78 | 13% | 0.575 | |
| 6–10 years | 269 | 45% | 0.065 | |
| 11–15 years | 96 | 16% | 0.002 | |
| 16–20 years | 88 | 15% | 0.055 | |
| 20+ years | 30 | 5% | 0.061 |
| Variable | Type | Frequency | % | p-Value |
|---|---|---|---|---|
| Multimorbidity 1 | Diabetes only | 209 | 35% | 0.021 |
| Diabetes + 1 | 191 | 32% | ||
| Diabetes + 2 | 137 | 23% | ||
| Diabetes + 3 | 60 | 10% | ||
| Presenting Comorbidity | Hypertension | 373 | 63% | NC |
| Hypercholesterolemia | 194 | 33% | NC | |
| Chronic Kidney Disease | 32 | 5% | NC | |
| Cardiac Disease | 28 | 5% | NC | |
| Retroviral Disease | 45 | 8% | NC | |
| Obese | 179 | 30% | NC | |
| Random Blood Glucose | 0–5 mmol/L | 54 | 9% | 0.095 |
| 6–10 mmol/L | 346 | 58% | 0.067 | |
| 11–15 mmol/L | 125 | 21% | 0.003 | |
| 16–20 mmol/L | 60 | 10% | NC | |
| 21–25 mmol/L | 12 | 2% | NC |
| Risk Factor | Condition | Frequency | % | p-Value |
|---|---|---|---|---|
| Foot ulcer (n = 597) | Current | 116 | 19% | 0.017 |
| In remission | 106 | 18% | NC | |
| Never | 375 | data | NC | |
| Number of ulcers per foot (n = 116) | 1 | 88 | 76% | 0.575 |
| ≥2 | 28 | 24% | 0.286 | |
| Ulcer site (n = 116) | Toes | 13 | 11% | 0.286 |
| Plantar metatarsal area | 85 | 75% | 0.017 | |
| Medial longitudinal arch | 3 | 3% | 0.286 | |
| Heel | 15 | 13% | 0.286 | |
| History of amputation (n = 597) | Yes | 89 | 15% | 0.713 |
| No | 508 | 85% | 0.672 | |
| Type of amputation (n = 103) | Transmetatarsal | 41 | 40% | 0.910 |
| Ankle | 31 | 30% | 0.575 | |
| Transtibial | 29 | 28% | 0.575 | |
| Transfemoral | 2 | 2% | 0.575 | |
| Derm Findings (n = 597) | Hyperkeratosis | 239 | 40% | 0.812 |
| Fissures | 191 | 32% | 0.281 | |
| Fungal Infection | 149 | 25% | 0.286 | |
| Interdigital maceration | 125 | 21% | 0.612 | |
| Neuropathy (n = 597) | Numbness (LOPS) | 198 | 33% | 0.017 |
| Burning | 95 | 16% | 0.286 | |
| Paraesthesia | 167 | 28% | 0.286 | |
| Peripheral Arterial Disease (n = 597) | Pulses palpable | 345 | 58% | 0.681 |
| Pulses not palpable | 131 | 22% | 0.037 | |
| Pulses palpable but faint | 125 | 21% | 0.072 | |
| Foot deformities (n = 597) | Pes cavus | 149 | 25% | 0.041 |
| Pes planus | 30 | 5% | 0.561 | |
| Prominent metatarsal heads | 185 | 31% | 0.002 | |
| Hallux valgus | 125 | 21% | 0.612 |
| Diabetic Foot Screening in the Past 12 Months | Frequency | % | p-Value | |
|---|---|---|---|---|
| Diabetic Foot Screening (n = 597) | Yes | 60 | 10% | NC |
| No | 537 | 90% | NC | |
| Nature of screening (n = 115) | HCP looked at my feet | 38 | 63% | NC |
| HCP only asked about my feet | 22 | 37% | NC | |
| Type of screening (n = 38) | Skin | 14 | 37% | NC |
| Nails | 4 | 10% | NC | |
| Deformity | 5 | 13% | 0.984 | |
| Temparature | 6 | 16% | NC | |
| Sensation | 6 | 16% | NC | |
| Footwear | 3 | 8% | NC | |
| Risk Stratification (n = 597) | Frequency | % |
|---|---|---|
| 0—Very Low | 178 | 30% |
| 1—Low | 202 | 34% |
| 2—Moderate | 116 | 19% |
| 3—High | 101 | 17% |
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Ntuli, S. Prevalence, Screening Practices and Risk Stratification for Diabetic Foot Complications in Primary Healthcare Clinics: A Cross-Sectional Study in Gauteng Province, South Africa. Int. J. Environ. Res. Public Health 2025, 22, 1794. https://doi.org/10.3390/ijerph22121794
Ntuli S. Prevalence, Screening Practices and Risk Stratification for Diabetic Foot Complications in Primary Healthcare Clinics: A Cross-Sectional Study in Gauteng Province, South Africa. International Journal of Environmental Research and Public Health. 2025; 22(12):1794. https://doi.org/10.3390/ijerph22121794
Chicago/Turabian StyleNtuli, Simiso. 2025. "Prevalence, Screening Practices and Risk Stratification for Diabetic Foot Complications in Primary Healthcare Clinics: A Cross-Sectional Study in Gauteng Province, South Africa" International Journal of Environmental Research and Public Health 22, no. 12: 1794. https://doi.org/10.3390/ijerph22121794
APA StyleNtuli, S. (2025). Prevalence, Screening Practices and Risk Stratification for Diabetic Foot Complications in Primary Healthcare Clinics: A Cross-Sectional Study in Gauteng Province, South Africa. International Journal of Environmental Research and Public Health, 22(12), 1794. https://doi.org/10.3390/ijerph22121794

