Journal
DIAGNOSTICS
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/diagnostics11020286
Keywords
growth differentiation factor 15; death prediction model; hemodialysis
Categories
Funding
- MOST [109-2628-B-385-001]
- Renal Care Joint Foundation [MOST 109-2221-E-038 -013, DP2-109-21121-01-O-01-03, DP2-108-21121-01-O-05-04, MOST-109-2918-I038-002, TMU-NTUST-109-10]
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In patients with maintenance hemodialysis (MHD), age, GDF15, and hypoalbuminemia are significantly associated with all-cause and cardiovascular death risks. A combination scoring system provides more robust predictive powers, particularly with an elevated GDF15-based risk score indicating the need for appropriate intervention. The GDF15-based death prediction model could potentially be integrated into artificial intelligence-based precision medicine.
Background: The risk of cardiovascular (CV) and fatal events remains extremely high in patients with maintenance hemodialysis (MHD), and the growth differentiation factor 15 (GDF15) has emerged as a valid risk stratification biomarker. We aimed to develop a GDF15-based risk score as a death prediction model for MHD patients. Methods: Age, biomarker levels, and clinical parameters were evaluated at study entry. One hundred and seventy patients with complete information were finally included for data analysis. We performed the Cox regression analysis of various prognostic factors for mortality. Then, age, GDF15, and robust clinical predictors were included as a risk score model to assess the predictive accuracy for all-cause and CV death in the receiver operating characteristic (ROC) curve analysis. Results: Age, GDF15, and albumin were significantly associated with higher all-cause and CV mortality risk that were combined as a risk score model. The highest tertile of GDF-15 (>1707.1 pg/mL) was associated with all-cause mortality (adjusted hazard ratios (aHRs): 3.06 (95% confidence interval (CI): 1.20-7.82), p < 0.05) and CV mortality (aHRs: 3.11 (95% CI: 1.02-9.50), p < 0.05). The ROC analysis of GDF-15 tertiles for all-cause and CV mortality showed 0.68 (95% CI = 0.59 to 0.77) and 0.68 (95% CI = 0.58 to 0.79), respectively. By contrast, the GDF15-based prediction model for all-cause and CV mortality showed 0.75 (95% CI: 0.67-0.82) and 0.72 (95% CI: 0.63-0.81), respectively. Conclusion: Age, GDF15, and hypoalbuminemia predict all-cause and CV death in MHD patients, yet a combination scoring system provides more robust predictive powers. An elevated GDF15-based risk score warns clinicians to determine an appropriate intervention in advance. In light of this, the GDF15-based death prediction model could be developed in the artificial intelligence-based precision medicine.
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