Abbreviations
| AHI | Apnoea/hypopnoea index |
| BMI | Body Mass Index |
| BP | Blood pressure |
| BTS | British Thoracic Society |
| COPD | Chronic obstructive pulmonary disease |
| CPAP | Continuous positive airway pressure |
| CT | Computed tomography |
| DVLA | Driver and Vehicle Licencing Agency |
| ECG | Electrocardiogram |
| EEG | Electroencephalogram |
| ENT | Ear, nose and throat |
| ESS | Epworth Sleepiness Scale |
| FEV1 | Forced expiratory volume |
| FVC | Forced vital capacity |
| GP | General Practitioner |
| HADS | Hospital Anxiety and Depression Score |
| HDU | High dependency unit |
| ICU | Intensive care unit |
| IOD | Intra-oral device |
| LAUP | Laser-assisted uvulopalatopharyngoplasty |
| MRI | Magnetic resonance imaging |
| MSLT | Multiple Sleep Latency Test |
| OSAHS | Obstructive sleep apnoea/hypopnoea syndrome |
| PSG | Polysomnography |
| QALY | Quality Adjusted Life Year |
| RCT | Randomised controlled trial |
| RDI | Respiratory disturbance index |
| SF-36 | 36 item short form health survey |
| SpO2 | Oxygen saturation of arterial blood by pulse oximetry |
| SIGN | Scottish Intercollegiate Guidelines Network |
| SpR | Specialist registrar |
| SSRI | Selective serotonin reuptake inhibitor |
| UPPP | Uvulopalatopharyngoplasty |