Table 4

Predictive parameters for BQ
AHI ≥ 5 – <15 (95% CI) AHI ≥ 15 – ≤ 30 (95% CI) AHI > 30 (95% CI)
Sensitivity, % 76 (67–73) 84 (76–91) 79 (69–86)
Specificity, % 40 (12–74) 61 (41–79) 39 (22–58)
PPV, % 94 (86–96) 86 (80–94) 80(71–87)
NPV, % 12 (3.5–28.2) 52 (34–69) 36 (20–55)
Positive LR 1.26 (0.6–27) 2.14 (1.6–2.9) 1.28 (0.8–2.0)
Negative LR 0.61 (0.3–1.1) 0.26 (0.1–0.5) 0.55 (0.3–0.9)
Odds ratio 2.069 (0.54–7.8) 8.21 (3.2–20.8) 2.31 (0.97–5.5)
AUC 0.578 (0.488–0.665) 0.724 (0.639–0.799)* 0.586 (0.496–0.672)

AHI: apnoea/hypopnoea index; AUC: area under the curve; BQ: Berlin Questionnaire; LR: likelihood ratio; NPV: negative predictive value; PPV: positive predictive value.

Bouloukaki et al.

Bouloukaki et al. BMC Pulmonary Medicine 2013 13:6   doi:10.1186/1471-2466-13-6

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