16th February 2025

A 42-year-old woman with a BMI of 24 attends her general practitioner with low mood.

A 42-year-old woman with a BMI of 24 attends her general practitioner with low mood. She falls asleep up to 5 times per day and complains of poor concentration.

Her patient health questionnaire 9 (PHQ-9) score is 14/27.

Polysomnography shows an apnoea/hypopnoea index (AHI) of 15.

What is the most likely primary underlying diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.