A type 1 diabetes genetic risk score discriminates between type 1 diabetes and type 2 diabetes in a Chinese population
Authors' conclusion
A type 1 diabetes C-GRS comprising 33 SNPs was highly discriminative of type 1 diabetes risk in the Chinese population and could aid in discriminating between type 1 diabetes and type 2 diabetes. This study highlights the potential of genetic information in improving prediction and precision diagnosis of type 1 diabetes in the Chinese population.
Study context
- Population
- Chinese population: discovery 1303 T1D and 2236 controls; replication 501 T1D and 853 controls; validation 262 T1D, 1080 T2D and 208 controls
- Comparison
- Chinese T1D genetic risk score (C-GRS) vs European-derived genetic risk score (GRS) for discriminating T1D from T2D and controls
- Outcome
- Discrimination between T1D and T2D by the C-GRS (AUC)
Methodological detailsgenome-wide association analysis, independent replication cohort, independent validation cohort
- Genome-wide association analysis
- Independent replication cohort
- Independent validation cohort
Performance
As reported in the abstract
Discrimination (AUC) in independent validation cohort
| Test or model | AUC, T1D vs control | AUC, T1D vs T2D |
|---|---|---|
| C-GRS | 0.871 | 0.869 |
| European-derived GRS | 0.773 | 0.793 |
AUC, T1D vs control
C-GRS0.871
European-derived GRS0.773
AUC, T1D vs T2D
C-GRS0.869
European-derived GRS0.793
Further findings
- C-GRS discrimination for T1D in derivation data
- 0.876 · AUC
Novel T1D locus
- rs10232170 in BMPER as possible novel T1D locus
- P = 9.897×10-9
- Tag SNPs identified for DQA1-DQB1 haplotypes
- 13
- Non-DQA1-DQB1 loci identified
- 12
Original publication
A type 1 diabetes genetic risk score discriminates between type 1 diabetes and type 2 diabetes in a Chinese population. Diabetologia. Published 26 June 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →