Table 1 Characteristics of the study population (full analysis set, n = 22)

Age (years)

61 ± 13

Gender (% male)

82 %

Body mass index (kg/m²)

29.6 ± 4.48

Neck circumference (cm)

40.6 ± 3.8

Waist circumference (cm)

106.5 ± 13.5

Time since OSAS diagnosis (years)

3.2 [0.5–5.3]

Epworth scale score at diagnosis

11.8 ± 4.0

Polygraphic data at diagnosis

 Apnoea-hypopnoea index (/hr)

43.0 ± 16.6

 Number of obstructive events (/hr)

28.9 ± 16.9

Mean nightly CPAP use (hrs) in the month prior selection

5.5 ± 2.2