Results of the polysomnographic investigations before and after surgery
| Polysomnographia | Before surgery (n=17) | First follow up (n=17) | Second follow up (n=14) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | ||||||
| Total sleep time (min) | 323 | 275-371 | 347 | 303-390 | 359 | 308-409 | |||||
| Stage 1 (%) | 36 | 28-44 | 273-150 | 21-34 | 31 | 21-40 | |||||
| Stage 2 (%) | 44 | 38-51 | 44 | 39-48 | 50 | 44-56 | |||||
| REM stage (%) | 9 | 5-13 | 133-150 | 9-16 | 8.9 | 5.5-12.3 | |||||
| Delta stage (%) | 11 | 6-15 | 163-150 | 11-21 | 10 | 5-15 | |||||
| Awakenings (n) | 28 | 23-34 | 21 | 15-26 | 25 | 16-34 | |||||
| Wakenings after onset of sleep (min) | 164 | 130-198 | 1103-150 | 75-146 | 127 | 95-160 | |||||
| Respiratory disturbance index | 17.9 | 11.3-24.5 | 21.5 | 13.1-27.1 | 25.1 | 15.6-34.0 | |||||
↵3-150 p < 0.05 v investigation before surgery.