Not there yet: using data-driven methods to predict who becomes costly among low-cost patients with type 2 diabetes

Table 2 Model discriminative ability to predict two-year diabetes spending trajectory groups

	Validated C-statistics
Group (Ref: other groups)	Model 1: All baseline predictors	Model 2: Diabetes predictors	Model 3: Potentially-modifiable predictors
Group 1: Minimal user	0.874	0.847	0.820
Group 2: Low cost	0.746	0.731	0.712
Group 3: Rising cost	0.650	0.632	0.625
Group 4: Moderate cost	0.685	0.675	0.646
Group 5: High cost	0.872	0.855	0.835

ISSN: 1472-6823