Table 5. The comparison of area under an ROC curve (AUC) between traditional diabetic risk factors and serum albumin change.

	Prediabetes#			Diabetes##
Variables	AUC	95% CI	p value	AUC	95% CI	p value
Age (year)	0.619	0.608–0.630	< 0.001	0.618	0.553–0.684	0.001
BMI (kg/m2)	0.609	0.598–0.630	< 0.001	0.679	0.620–0.738	< 0.001
Fasting glucose (mg/dL)	0.617	0.606–0.628	< 0.001	0.607	0.534–0.681	0.003
HbA1c (%)	0.710	0.700–0.720	< 0.001	0.728	0.674–0.782	< 0.001
Serum albumin change (%)	0.651	0.640–0.662	< 0.001	0.612	0.545–0.679	0.002

^#HbA1c was 5.7–6.4% or fasting plasma glucose was 100–125 mg/dL.

^##HbA1c was more than 6.5% or fasting plasma glucose was more than 126 mg/dL.

AUC, area under curve; CI, confidence intervak; BMI, body mass index.