Table 5.
Sleep Data at Follow-Up Categorized According to Baseline SDB Pattern
| No-SDB (n=7) | d-OSA (n=37) | d-CSA (n=4) | MP (n=12) | Total (n=60) | p | |
|---|---|---|---|---|---|---|
| Age (years) | 58.3±8 | 62.1±9.7 | 62±7.7 | 59.4±11.8 | 60.7±9.4 | n.s. |
| BMI (kg/m2) | 23.6±3.5 | 27.7±4.8 | 27.2±2.2 | 27.5±3.8 | 26.7±4.2 | 0.02 |
| ESS | n.s. | |||||
| AHI | 7.2±3.9 | 21.1±16.3 | 25.1±15 | 15.7±11 | 17.7±14.3 | <0.001 |
| AHI supine | 17.6±11 | 37±28.7 | 36.1±22.5 | 28±15.5 | 30.5±22.7 | n.s. |
| AHIo | 5.2±3.8 | 16.8±11.3 | 14.7±14.1 | 11.2±10.3 | 12.4±11.1 | 0.02 |
| AHIc | 2±2.6 | 1.6±1.5 | 10.3±9 | 4.3±2.9 | 3.9±5.2 | <0.0001 |
| MCA s | 13.5±2.6 | 15±3.4 | 17.6±3.6 | 14.9±2.7 | 15.1±2.7 | n.s. |
| MOA s | 12.7±10.1 | 19.4±4.5 | 20±3.9 | 16±6.7 | 17.1±7.1 | 0.02 |
| Mean SpO2% | 92.7±1.4 | 92.1±1.8 | 91.4±1.3 | 91.7±1.9 | 92±1.7 | n.s. |
| SpO2 nadir % | 85.8±5.5 | 77.5±9.9 | 80.4±5.3 | 82.2±5.9 | 80.8±7.9 | 0.01 |
| ODI | 7.5±4.3 | 20.7±14.9 | 25.4±14.2 | 16.3±11.1 | 17.7±13.6 | <0.01 |
| T90% | 4.1±8.7 | 12.5±13.4 | 17.5±18.8 | 15.5±21.8 | 12.1±16.2 | n.s. |
Note: Data are presented as mean ± SD unless otherwise indicated.
Abbreviations: SDB, sleep-disordered breathing; BMI, body mass index; ESS, Epworth Sleepiness Score; AHI, ApnEa–Hypopnea Index; AHIo, obstructive AHI; AHIc, central AHI; MCA, mean duration of central apnea; MOA, mean duration of obstructive apnea; Mean SpO2, mean oxygen saturation; SpO2, nadir minimum oxygen saturation value; ODI, oxygen desaturation index; T90, recording time with SpO2 <90%; No-SDB, no sleep-disordered breathing; d-OSA, dominant obstructive sleep apnea pattern; d-CSA, dominant central sleep apnea pattern; MP, mixed pattern.