Table 2 Comparisons of study parameters in different PLM groups among cases
From: Periodic limb movement index and severity of obstructive sleep apnea
Variables | PLM < 15 (N = 98) | PLM ≥ 15 (N = 55) | P-value | ||
|---|---|---|---|---|---|
Sex | |||||
Male | 116 | 63% | 48 | 69.6% | 0.3 |
Female | 68 | 37% | 21 | 30.4% | |
AHI severity level | |||||
Mild | 44 | 44.9% | 13 | 23.6% | 0.01* |
Moderate | 23 | 23.5% | 12 | 21.8% | |
Severe | 31 | 31.6% | 30 | 54.5% | |
Age (years) | 49.1 | 13.7 | 50.5 | 11.9 | 0.5 |
BMI (kg/m2) | 39.1 | 9.3 | 36.05 | 7.8 | 0.03* |
STOP-Bang score | 5.1 | 1.1 | 5.4 | 1 | 0.1 |
Epworth score | 17.4 | 1.4 | 17.4 | 1.3 | 0.8 |
Total time in bed | 7.7 | 1.4 | 7.6 | 1.4 | 0.6 |
Total sleep time | 6.4 | 1.5 | 6.4 | 1.2 | 0.9 |
Sleep efficiency | 83.3 | 11.9 | 84.4 | 6.1 | 0.5 |
RDI | 33.3 | 19.9 | 37.2 | 26.7 | 0.3 |
Apnea index | 6.9 | 13.02 | 6.6 | 13.03 | 0.9 |
Hypopnea index | 17.2 | 14.9 | 30.1 | 22.9 | 0.001* |
Baseline O2 saturation | 93.6 | 3.4 | 94.6 | 2.2 | 0.04* |
Minimal SpO2 | 77.9 | 11.9 | 79.9 | 7.5 | 0.3 |
Average SpO2 | 92.5 | 4.3 | 93.8 | 2.8 | 0.05* |
Desaturation index | 27.3 | 23.8 | 37.1 | 30.8 | 0.02 |
Arrhythmia index | 42.2 | 72.4 | 27.9 | 72.9 | 0.2 |
PLMs with arousal index | 0.45 | 0.89 | 4.2 | 4.5 | < 0.001* |
Wake index | 5.9 | 8.1 | 6.2 | 5.8 | 0.8 |
AHI | 24.1 | 19.1 | 36.7 | 26.6 | 0.001* |