Table 2 Description of the population at baseline (N = 396)
Population characteristics | ||
|---|---|---|
Socio-demographic characteristics | ||
   Age (years; mean ± STD) |  | 59 ± 11 |
   Gender | Female | 45% |
| Â | Male | 55% |
   Race | White | 96% |
| Â | Black | 1% |
| Â | Asian or Pacific | 2% |
| Â | Other | 2% |
   Country | Australia | 19% |
| Â | Germany | 17% |
| Â | Hungary | 9% |
| Â | Poland | 42% |
| Â | South Africa | 8% |
| Â | United Kingdom | 5% |
Clinical parameters | Mean score ± STD | |
   Mean sleep interference score | 5.6 ± 2.2 | |
   Mean pain score | 6.4 ± 1.4 | |
MOS-Sleep dimension scores | Â | |
   Awaken Short of Breath | 24.3 ± 27.2 | |
   Sleep disturbance | 54.9 ± 26.3 | |
   Quantity of sleep | 6.0 ± 1.6 | |
   Snoring | 40.2 ± 33.3 | |
   Somnolence | 42.0 ± 24.2 | |
   Sleep Problems Index | 48.8 ± 19.6 | |
   Sleep adequacy | 43.5 ± 28.7 | |
   Optimal sleep (yes; %) | 34 | |