Table 1 Baseline characteristics of the study populations

Gender

31.7% female

38.1% female

25.0% female

Age (mean (SD))

50.1 (12.6)

50.4 (13.0)

55.8 (10.9)

Baseline AHI (mean (SD))

25 (23) (n = 160^a)

27 (25) (n = 96^a)

41 (22)

BMI (mean (SD))

28.9 (4.7)

28.3 (4.6)

30.4 (4.2)

ESS score (mean (SD))

9.9 (4.7)

9.6 (4.4)

9.8 (4.7)

ESS score ≥ 11

43%

42%

40%

Sleep study (type)

43% PG /57% PSG (n = 160*)

39%PG /61% PSG (n = 96*)

43%PG/ 57%PSG

CPAP compliance (mean (SD))

N/A

N/A

6:46 h (1:40 h)

CPAP compliance ≥4 h/night

N/A

N/A

96%

AHI with CPAP (mean(SD))

N/A

N/A

2.6 (3.4)