Table 3.

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

	OSUNet	MNC	STOP-BANG
Sensitivity	0.74 (0.67–0.80)*	0.87 (0.80–0.91)†	0.95 (0.91–0.98)
Specificity	0.78 (0.72–0.84)*	0.42 (0.35–0.50)†	0.21 (0.16–0.28)
PPV	0.76 (0.69–0.82)*	0.58 (0.52–0.64)†	0.53 (0.48–0.59)
NPV	0.76 (0.70–0.82)	0.77 (0.68–0.85)	0.82 (0.69–0.92)
Positive LR	3.40 (2.56–4.47)*	1.50 (1.31–1.72)†	1.20 (1.12–1.31)
Negative LR	0.34 (0.26–0.44)	0.32 (0.21–0.48)	0.23 (0.12–0.46)

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 = 383.

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

^†Significantly different compared with STOP-BANG.