Table 1.
Demographic characteristics before implantation (baseline).
| Female | Male | Overall | P | |
|---|---|---|---|---|
| n (%) | 7 (14%) | 43 (86%) | 50 (100%) | |
| Age, y | 60.0 ± 7.9 | 57.2 ± 11.2 | 57.6 ± 10.8 | .43 |
| Body mass index, kg/m2 | 26.2 ± 2.5 | 27.1 ± 3.6 | 27 ± 3.4 | .44 |
| AHI (3%, PSG), events/h | 34.8 ± 18.6 | 37.5 ± 14.9 | 37.1 ± 15.3 | .72 |
| AHI (3%, HSAT-PAT), events/h | 18.5 ± 12.5 | 31.1 ± 16.6 | 29.3 ± 16.6 | .04 |
| ODI (4%, HSAT-PAT), events/h | 13.2 ± 10.8 | 18.6 ± 12.8 | 17.8 ± 12.6 | .26 |
| Epworth Sleepiness Scale | 9.3 ± 5.1 | 13.3 ± 5.3 | 12.8 ± 5.4 | .09 |
Data displayed as mean ± SD for continuous variables or n (%) for categorical variables. P values are unpaired t tests between men and women. AASM = American Academy of Sleep Medicine, AHI = apnea-hypopnea index (AASM scoring criteria for hypopnea using 3% oxygen desaturation), HSAT-PAT = home sleep apnea testing with peripheral arterial tonometry, ODI = oxygen-desaturation index (using 4% oxygen desaturation), PSG = polysomnography.