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Development and Validation of a Chronic Kidney Disease Prediction Model for Type 2 Diabetes Mellitus in Thailand
Wilailuck Tuntayothin1, Stephen John Kerr2, Chanchana Boonyakrai3
1Department of Social and Administrative Pharmacy, Chulalongkorn University, Bangkok, Thailand.
Insights
This study developed two risk models to predict stage-3 chronic kidney disease (CKD) in Thai patients with type 2 diabetes mellitus (DM). The models accurately identify individuals at high risk, aiding clinical management and patient education.
Area of Science:
- Nephrology
- Endocrinology
- Public Health
Background:
- Type 2 diabetes mellitus (DM) is a leading cause of chronic kidney disease (CKD).
- Predicting CKD progression in diabetic patients is crucial for timely intervention.
- Thai patients with type 2 DM require specific risk assessment tools.
Purpose of the Study:
- To identify predictors of stage-3 CKD in Thai patients with type 2 DM.
- To develop and validate risk prediction models for stage-3 CKD.
- To provide tools for clinical management and patient education.
Main Methods:
- Retrospective cohort study of 2178 type 2 DM patients.
- Cox proportional hazard regression for model development.
- Model performance evaluated using discrimination (C statistic) and calibration tests.
Main Results:
- 17.68% of patients developed stage-3 CKD during a median follow-up of 1.29 years.
- Key predictors identified: age, male sex, urinary albumin to creatinine ratio, estimated glomerular filtration rate, and hemoglobin A1c.
- Two 3-year risk models (laboratory and simplified) showed good predictive performance (C-statistics 0.890 and 0.812).
Conclusions:
- Developed two validated 3-year risk models for stage-3 CKD in Thai type 2 DM patients.
- Models demonstrate good discrimination and calibration.
- These tools can enhance clinical decision-making and patient counseling for CKD prevention.
Objectives:
The objective of this study was to investigate predictors and develop risk equations for stage-3 chronic kidney disease (CKD) in Thai patients with type 2 diabetes mellitus (DM).
Methods:
A retrospective cohort study was conducted in patients with type 2 DM. The outcome was the development of stage-3 CKD. The data set was randomly split into training and validation data sets. Cox proportional hazard regression was used for model development. Discrimination (Harrell's C statistic) and calibration (the Hosmer-Lemeshow chi-square test and survival probability curve) were applied to evaluate model performance.
Results:
In total, 2178 type 2 DM patients without stage-3 CKD, visiting the hospital from January 1, 2008, to December 31, 2017, were recruited, with median follow-up time of 1.29 years (interquartile range, 0.5-2.5 years); 385 (17.68%) subjects had developed stage-3 CKD. The final predictors included age, male sex, urinary albumin to creatinine ratio, estimated glomerular filtration rate, and hemoglobin A1c. Two 3-year stage-3 CKD risk models, model 1 (laboratory model) and model 2 (simplified model), had the C statistic in validation data sets of 0.890 and 0.812, respectively.
Conclusions:
Two 3-year stage-3 CKD risk models were developed for Thai patients with type 2 DM. Both models have good discrimination and calibration. These stage-3 CKD prediction models could equip health providers with tools for clinical management and supporting patient education.
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