Table 5.
Results of correlation analysis in the examined group of patients.
| Glucose | Insulin | HOMA-IR | ||||
|---|---|---|---|---|---|---|
| r | p | r | p | r | p | |
| AHI | 0.15 | ns | 0.55 | 0.001 | 0.54 | 0.001 |
| ODI | 0.24 | ns | 0.61 | 0.001 | 0.61 | 0.001 |
| TST | −0.13 | ns | −0.02 | ns | −0.03 | ns |
| SL | −0.16 | ns | −0.09 | ns | −0.10 | ns |
| REML | 0.01 | ns | 0.24 | ns | 0.24 | ns |
| WASO | 0.18 | ns | −0.20 | ns | −0.15 | ns |
| SE | −0.07 | ns | 0.16 | ns | 0.13 | ns |
| NREM1 | 0.14 | ns | 0.54 | 0.001 | 0.54 | 0.001 |
| NREM2 | −0.02 | ns | 0.17 | ns | 0.16 | ns |
| NREM3 | −0.01 | ns | −0.43 | 0.003 | −0.42 | 0.004 |
| REM | −0.12 | ns | −0.27 | ns | −0.27 | ns |
| Average SpO2 | −0.11 | ns | −0.24 | ns | −0.25 | ns |
| Minimal SpO2 | −0.26 | ns | −0.29 | ns | −0.32 | 0.032 |
| Spo2 < 90% | 0.34 | 0.027 | 0.40 | 0.007 | 0.44 | 0.003 |
| Average desat. drop | 0.16 | ns | 0.46 | 0.002 | 0.47 | 0.001 |
| H | 0.02 | ns | 0.18 | ns | 0.17 | ns |
| ESS | −0.15 | ns | 0.10 | ns | 0.06 | ns |
HOMA-IR, homeostatic model assessment-insulin resistance index; AHI, apnea–hypopnea index; ODI, oxygen desaturation index; TST, total sleep time; SL, sleep latency; REML, REM latency; WASO, wake after sleep onset; SE, sleep efficiency; NREM1 stadium of non-REM sleep 1; NREM2, stadium of non-REM sleep 2; NREM3, stadium of non-REM sleep 3; REM, stadium of REM sleep; SpO2 < 90% (%), time with oxygen saturation < 90% (% of total bedtime; H, heart rate; ESS, Epworth sleepiness scale.