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Table 4 Cut-off value and area under curve (AUC) of variables for prediction of HbA1c > 7.0% risk in diabetic subjects

From: Factors associated with glycemic control in community-dwelling elderly individuals with type 2 diabetes mellitus in Zhejiang, China: a cross-sectional study

 

Cut-off value

Sensitivity

Specificity

Youden Index

AUC(95%CI)

p valuea

p value

FBG

7.38

0.7506

0.8387

0.5893

0.864(0.840–0.886)

< 0.001

< 0.022b

TyG

9.22

0.5762

0.6989

0.2751

0.684(0.653–0.714)

< 0.001

< 0.022b

TyG-WC

813.33

0.4336

0.7376

0.1713

0.604(0.571–0.635)

< 0.001

< 0.022b

TyG-BMI

227.77

0.4790

0.6366

0.1156

0.574(0.541–0.606)

< 0.001

< 0.022c

TC

5.98

0.2185

0.8753

0.0938

0.547(0.514–0.580)

0.013

0.283d

  1. HbA1c glycated haemoglobin A1c, FBG fasting blood glucose, TyG the product of triglycerides and fasting blood glucose, TC total cholesterol, TG triglycerides, WC waist circumstance, BMI body mass index, CI confidence interval
  2. aAUC of each variable compared with 0.5
  3. bAUC of the indicated variable compared with all the other variables
  4. cAUC of TyG-BMI compared with AUC of all the other variables except for TC
  5. dAUC of TC compared with AUC of TyG-BMI