Table 3 Comparisons of study parameters in different AHI severity degrees
From: Periodic limb movement index and severity of obstructive sleep apnea
Variables | AHI | P-value | |||||
|---|---|---|---|---|---|---|---|
Mild (N = 57) | Moderate (N = 35) | Severe (N = 61) | |||||
Sex | |||||||
Male | 31 | 54.4% | 24 | 68.6% | 43 | 70.5% | 0.2 |
Female | 26 | 45.6% | 11 | 31.4% | 18 | 29.5% | |
Age (years) | 49.6 | 14.1 | 49.4 | 12.4 | 49.3 | 12.6 | 0.9 |
BMI (kg/m2) | 40.2 | 9.1 | 35.7 | 8.7 | 37.4 | 8.6 | 0.06 |
STOP-Bang score | 5 | 1.1 | 5.2 | 1.1 | 5.3 | 1.01 | 0.2 |
Epworth score | 17.1 | 1.4 | 17.2 | 1.2 | 17.8 | 1.4 | 0.01* |
Total time in bed | 7.8 | 1.5 | 7.9 | 1 | 7.3 | 1.4 | 0.09 |
Total sleep time | 6.6 | 1.6 | 6.7 | 0.98 | 6.2 | 1.4 | 0.2 |
Sleep efficiency | 84 | 10.9 | 83.7 | 8.3 | 83.4 | 10.7 | 0.9 |
RDI | 20.7 | 15.4 | 26.4 | 13.3 | 52.6 | 20.5 | < 0.001* |
Apnea index | 2.2 | 2.6 | 4 | 5.6 | 12.8 | 18.4 | < 0.001* |
Hypopnea index | 7.3 | 3.5 | 17.6 | 7.02 | 37.9 | 20.5 | < 0.001* |
Baseline O2 saturation | 93.9 | 3.5 | 94.3 | 2.6 | 93.8 | 2.9 | 0.9 |
Minimal SpO2 | 79.2 | 11.5 | 81.7 | 10.1 | 76.4 | 9.5 | 0.04* |
Average SpO2 | 93.03 | 4.3 | 93.5 | 3.6 | 92.6 | 3.7 | 0.6 |
Desaturation index | 22.4 | 23.6 | 20.3 | 20.2 | 44.7 | 27.4 | 0.001* |
Arrhythmia index | 40.7 | 68.9 | 18 | 40.7 | 44.6 | 87.8 | 0.2 |
PLMs index | 10.9 | 17 | 14.6 | 22.7 | 18.3 | 20.4 | 0.1 |
PLMs with arousal index | 1.6 | 4.3 | 1.5 | 1.8 | 2.1 | 2.9 | 0.6 |
Wake index | 7.3 | 9.3 | 4.8 | 3.8 | 5.6 | 6.5 | 0.3 |