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Table 6 Predictive parameters of various Body Functions score cut-offs for different AHI levels

From: Performance of brief ICF-sleep disorders and obesity core set in obstructive sleep apnea patients

Cut-off points

Sensitivity

Specificity

PPV

NPV

AUC

AHI ≥ 5 events/h as the diagnostic criteria for OSA

Prevalence of OSA = 430/592 (72.64%)

 ICF-Sleep≥3

0.80

0.54

0.83

0.48

0.67 (0.62–0.72)

 ICF-Sleep≥4

0.62

0.74

0.87

0.41

0.68 (0.63–0.73)

 ICF-Sleep≥5

0.44

0.90

0.92

0.36

0.67 (0.63–0.71)

 ICF-Obesity≥1

0.98

0.05

0.75

0.46

0.52 (0.49–0.54)

 ICF-Obesity≥2

0.84

0.31

0.77

0.40

0.57 (0.52–0.62)

 ICF-Obesity≥3

0.51

0.57

0.77

0.29

0.54 (0.49–0.59)

AHI ≥ 15 events/h as the diagnostic criteria for OSA

Prevalence of OSA =301/592 (50.84%)

 ICF-Sleep≥3

0.85

0.42

0.58

0.75

0.64 (0.60–0.68)

 ICF-Sleep≥4

0.69

0.63

0.64

0.68

0.66 (0.62–0.70)

 ICF-Sleep≥5

0.49

0.68

0.55

0.62

0.63 (0.59–0.68)

 ICF-Obesity≥1

0.99

0.05

0.50

0.85

0.52 (0.50–0.53)

 ICF-Obesity≥2

0.86

0.26

0.52

0.67

0.56 (0.53–0.60)

 ICF-Obesity≥3

0.54

0.55

0.53

0.56

0.54 (0.50–0.59)

AHI ≥ 30 events/h as the diagnostic criteria for OSA

Prevalence of OSA = 167/592 (28.21%)

 ICF-Sleep≥3

0.88

0.35

0.33

0.89

0.62 (0.58–0.65)

 ICF-Sleep≥4

0.75

0.56

0.38

0.86

0.66 (0.61–0.70)

 ICF-Sleep≥5

0.57

0.73

0.44

0.82

0.65 (0.60–0.70)

 ICF-Obesity≥2

0.89

0.24

0.30

0.86

0.56 (0.53–0.60)

 ICF-Obesity≥3

0.64

0.56

0.35

0.81

0.60 (0.55–0.65)

 ICF-Obesity≥4

0.30

0.81

0.37

0.76

0.55 (0.51–0.60)

  1. PPV positive predictive value, NPV negative predictive value, AUC the area under the curve