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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