Table 4.

Diagnostic characteristics of obstructive sleep apnea prediction tools with 95% confidence intervals in validation group 1

	OSUNet	MNC	STOP-BANG
Sensitivity	0.63 (0.51–0.74)*	0.89 (0.80–0.95)†	0.97 (0.91–1.00)
Specificity	0.70 (0.58–0.80)*	0.30 (0.20–0.42)†	0.12 (0.06–0.21)
PPV	0.67 (0.54–0.78)*	0.55 (0.46–0.64)	0.51 (0.43–0.60)
NPV	0.66 (0.55–0.76)	0.74 (0.55–0.88)	0.82 (0.48–0.98)
Positive LR	2.08 (1.42–3.06)*	1.28 (1.08–1.51)	1.10 (1.01–1.20)
Negative LR	0.53 (0.38–0.74)	0.36 (0.17–0.76)	0.23 (0.05–1.04)

Definition of abbreviations: LR, likelihood ratio; MNC, modified neck circumference; NPV, negative predictive value; PPV, positive predictive value; STOP-BANG, Snoring, Tiredness, being Observed to stop breathing during sleep, high blood Pressure, Body mass index greater than 35 kg/m², Age greater than 50 years, Neck circumference greater than 40 cm, and male Gender.

Note: n = 149.

^*Significantly different compared with MNC and STOP-BANG.

^†Significantly different compared with STOP-BANG.