Logistic regression of univariate analysis to assess for predictors of upper airway stimulation adherence (≥28 h per week) at the final visit
| Univariable results | ||
| OR (95% CI) | p-value | |
| Age at consent | 1.04 (1.01–1.07) | 0.01 |
| Sex (female versus male) | 2.14(0.79–5.77) | 0.14 |
| BMI at baseline | 0.90 (0.83–0.97) | 0.009 |
| Baseline AHI | 0.98 (0.96–0.999) | 0.04 |
| Bilateral protrusion versus right protrusion | 0.92 (0.41–2.11) | 0.59 |
| Other versus right protrusion | 1.33 (0.32–5.59) | 0.62 |
| Change in AHI at post-titration visit | 1.01 (0.99–1.04) | 0.19 |
| Change in ESS at post-titration visit | 0.98 (0.91–1.05) | 0.57 |
| AHI success at post-titration visit | 0.99 (0.42–2.34) | 0.98 |
| Improvement by CGI at post-titration visit | 0.67 (0.30–1.51) | 0.33 |
| Patient satisfied or strongly satisfied at post-titration | 0.60 (0.15–2.47) | 0.48 |
| Therapy use at post-titration | 1.08 (1.05–1.11) | <0.0001 |
| Therapy use ≥28 h per week at post-titration | 0.19 (0.07–0.48) | 0.0004 |
A multivariable model was fit with stepwise selection used to reduce the model to retain only significant parameters (age, body mass index (BMI), apnoea/hypopnoea index (AHI) and therapy at post-titration) and only BMI and therapy use at post-titration visit was retained. ESS: Epworth sleepiness scale; CGI: Clinical Global Impressions scale.