Table 2 Demographic and sleep characteristics across groups
From: Topography-specific spindle frequency changes in Obstructive Sleep Apnea
Non-OSA | Mild OSA | Mod OSA | P-value | Group differences | |
|---|---|---|---|---|---|
Sample size | 7 | 11 | 10 | ||
Age, y | 46.0 (5.7) | 51.1 (6.8) | 52.2 (8.6) | 0.25 | ns |
Male, % | 4 (57.1) | 4 (36.4) | 8 (80.0) | 0.15 | ns |
BMI,(kg/m2) | 30.5 (5.6) | 30.0 (3.2) | 28.4 (3.2) | 0.54 | ns |
ESS, units | 12.0 (4.3) | 9.3 (6.4) | 11.5 (4.2) | 0.58 | ns |
Polysomnography Data | |||||
TST, min | 404.0 (61.6) | 401.3 (44.0) | 395.7 (47.9) | 0.73 | ns |
Sleep efficiency % | 85.1 (13.3) | 88.0 (6.2) | 84.7 (11.3) | 0.85 | ns |
N1 sleep % | 15.1 (8.8) | 17.1 (8.8) | 18.6 (6.8) | 0.46 | ns |
N2 sleep % | 44.5 (12.6) | 37.5 (13.2) | 41.5 (7.5) | 0.56 | ns |
N3 sleep % | 26.5 (12.3) | 32.3 (13.7) | 26.5 (8.2) | 0.60 | ns |
R sleep % | 13.9 (5.3) | 13.2 (5.3) | 13.4 (4.1) | 0.98 | ns |
Arousals, events/h | 18.7 (7.9) | 22.8 (5.8) | 30.6 (8.7) | 0.02 | Mod > Non-OSA |
AHI | 2.8 (1.4) | 9.4 (3.0) | 18.3 (3.6) | <0.0001 | Mod > Mild |
Mean NREM O2% sat | 94.4 (1.8) | 93.7 (2.1) | 94.6 (1.0) | 0.48 | ns |
Minimum sleep O2% sat | 89 (12.0) | 83.5 (6.75) | 85 (8.0) | 0.233 | ns |