Item

Sensitivity
(%)

Specificity
(%)

Positive predictive value
(%)

Negative predictive value
(%)

Youden’s index

DPN screening process

89.49

66.56

81.99

78.82

0.5605

TCSS ≥ 6

78.21

84.11

89.33

69.40

0.6232

Table 1: Comparison of the DPN screening process and TCSS.