Table 1.
Participants’ characteristics and polysomnographic parameters
| Endoscopy Physiology Study (N=22)* | Nasal Pressure Study (N=10) | |
|---|---|---|
| Age (years) | 51.6 ± 8.2 | 57.2 ± 8.2 |
| Sex (M:F) | 15:7 | 8:2 |
| Neck circumference (cm) | 40.3 ± 4.4 a | 41.5 ± 3.4 |
| BMI (kg/m2) | 33.1 ± 6.2 | 29.6 ± 6.5 |
| Mallampati Score | 3.6 ± 0.7 b | — |
| Number of breaths examined | 55 ± 26 | 177 ± 75 |
| TST(min) | 305 ± 86 c | 306 ± 70.9 |
| SE (%) | 72.4 ± 14.4 c | 71.9 ± 13.9 |
| NREM 1(%TST) | 24.5 ± 25.0 c | 28.2 ± 20.1 |
| NREM 2(%TST) | 56.9 ± 20.6 c | 56.2 ± 16.3 |
| NREM 3(%TST) | 4.3 ± 11.2 c | 6.8 ± 13.9 |
| REM(%TST) | 14.4 ± 8.7 c | 8.8 ± 6.0 |
| AHI (events/hour) | 48.5 ± 28.9 | 42.0 ± 25.5 |
| ArI (events/hour) | 44.1 ± 30.2 c | 44.7 ± 20.1 |
| Nadir SaO2 (%) | 78.9 ± 10.4 c | 83.4 ± 12.5 |
Data are presented as mean ± standard deviation.
*
Polysomnography data were analyzed retrospectively. BMI: body mass index;
a
Four data points are missing from the group.
b
Three data points are missing from the group.
TST: total sleep time; SE: sleep efficiency; NREM 1, NREM 2, NREM 3: non-rapid eye movement sleep stages 1–3; AHI: apnea-hypopnea index; ArI: arousal index; SaO2: oxygen hemoglobinic saturation.
c
Two data points are missing from calculation.