Adolescent 1 Adult 1 Article 1 Disorders of Excessive Somnolence Epworth sleepiness scale 1 Female 1 Humans 1 Male 1 Middle Aged 1 Nasal Surgical Procedures 1 Orthognathic Surgical Procedures 1 Prevalence 1 Retrospective Studies 1 Sleep Apnea, Obstructive 1 Sleepiness 1 Young Adult 1 adolescent 1 adult 1 age 1 body mass 1 breathing disorder 1 chronic obstructive nasal breathing 1 cohort analysis 1 consultation 1 daytime somnolence 1 dentofacial deformity 1 disease severity 1 female 1 human 1 major clinical study 1