Table 3—

Logistic regression results for factors associated with oral appliance treatment success

Diagnostic characteristics	Criterion 1 (AHI <5, >50% reduction)	p-value	Criterion 2 (AHI <10, >50% reduction)	p-value	Criterion 3 (>50% reduction)	p-value
Age	1.00 (0.95–1.05)	0.85	1.03 (0.98–1.09)	0.21	1.03 (0.98–1.08)	0.27
BMI	1.00 (0.89–1.13)	0.98	0.95 (0.83–1.08)	0.44	0.99 (0.89–1.10)	0.83
AHI baseline	0.96 (0.92–1.00)	0.06	0.95 (0.91–0.99)	0.01*	0.99 (0.96–1.02)	0.35
S_a,O₂ baseline	1.07 (0.97–1.18)	0.19	1.08 (0.99–1.189)	0.09	1.03 (0.97–1.09)	0.43
P_nCPAP	0.73 (0.55–0.97)	0.03*	0.72 (0.56–0.93)	0.01*	0.77 (0.62–0.97)	0.02*

Data are presented as OR (95% CI), unless otherwise indicated. Criterion 1: a reduction in apnoea/hypopnoea index (AHI) to <5 events·h⁻¹ and a >50% reduction from baseline; criterion 2: follow-up AHI <10 events·h⁻¹ and a >50% reduction from baseline; criterion 3: a reduction in AHI >50%. BMI: body mass index; S_a,O₂: arterial oxygen desaturation; P_nCPAP: optimal continuous positive airway pressure. *: p<0.05.