Table 1

Daytime function assessments

SleepinessMultiple sleep latency test (MSLT)
Epworth sleepiness scale
UWIST mood adjective checklist (UMACL)
Symptoms8-item questionnaire
(snoring, nocturnal choking, morning headache, morning confusion, nocturnal awakenings, daytime napping, evening napping, sleepiness whilst driving)
Cognitive performance30 minute SteerClear
TrailMaking B
WAIS-R performance IQ (Block Design and Digit Symbol Substitution)
National Adult Reading Test (NART)
Rapid Visual Information Processing (RVIP)
8-choice reaction time
Paced Auditory Serial Addition Test (PASAT: 2 second presentation rate)
Verbal Fluency
Benton Visual Retention Test (BVRT)
Psychological well beingHospital Anxiety and Depression Scale (HADS)
General Health Questionnaire-28 (GHQ-28)
Nottingham Health Profile (NHP) part 2