Table 5 Comparative analysis of the discrimination of TyG, FBG, and TG for all-cause mortality

Discrimination ability

TyG

FBG

TG

Sensitivity, %

76.2

66.0

59.3

Specificity, %

46.7

46.9

53.0

Youden’s index, %

22.9

12.3

12.9

Accuracy, %

57.7

55.3

54

Positive predictive value, %

45.9

42.8

42.4

Negative predictive value, %

76.8

68.7

69.9

C-Statistic (95% CI)

0.653 (0.589–0.717)

0.606 (0.543–0.670)

0.557 (0.493–0.620)

Comparison

TyG VS. FBG

TyG VS. TG

FBG VS. TG

Difference

P value

Difference

P value

Difference

P value

C-Statistic

0.047

0.013

0.096

0.001

0.049

0.679

cNRI

0.255

0.007

0.300

0.007

-0.030

0.811

IDI

0.080

 < 0.001

0.091

 < 0.001

0.011

0.605