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Table 3 Cut-off points of the subscales of the ICAB (n = 491)

From: Operationalization of diagnostic criteria of DSM-5 somatic symptom disorders

 

SF-12/ PCS

SF-12/ MCS

 

Sensitivity

Specificity

Sensitivity

Specificity

Cut-off for SSD criterion B1 cognition (7 items)

 AUC (95% CI)

0.69 (0.63–0.74)

0.71 (0.66–0.76)

 Total score ≥ 1

0.83

0.42

0.84

0.46

 Total score ≥ 2

0.67

0.64

0.67

0.64

 Total score ≥ 3

0.35

0.85

0.37

0.88

 Total score ≥ 4

0.26

0.91

0.27

0.94

Cut-off for SSD criterion B2 affects (5 items)

 AUC (95% CI)

0.68 (0.63–0.74)

0.68 (0.63–0.73)

 Total score ≥ 1

0.83

0.46

0.81

0.39

 Total score ≥ 2

0.71

0.59

0.69

0.55

 Total score ≥ 3

0.41

0.80

0.42

0.81

 Total score ≥ 4

0.30

0.88

0.31

0.93

Cut-off for SSD criterion B3 behaviors (6 items)

 AUC (95% CI)

0.71 (0.66–0.76)

0.61 (0.55–0.67)

 Total score ≥ 1

0.89

0.21

0.89

0.22

 Total score ≥ 2

0.77

0.53

0.75

0.46

 Total score ≥ 3

0.66

0.72

0.60

0.57

 Total score ≥ 4

0.34

0.88

0.30

0.78

  1. Note: Italic values indicate results at the optimal cut-off points