Table 3 Schedule of assessment

Questionnaires

 Epworth Sleepiness Scale (ESS)

X

X

 Self-Efficacy Measure for Sleep Apnea

X

X

X

  (SEMSA)

X

 Pittsburgh Sleep Quality Index (PSQI)

X

X

 EQ-5D

X

 Socio-Economic Questionnaire

X

 Social Support Questionnaire

X

Age

X

Gender

X

Body mass index (BMI)

X

Neck circumference

X

Objective measure of adherence

X

X

X

X

Subjective measure of adherence

X

X

X

X

One-to-one interviews

X