Table 1 Sample description (n = 1311)
Variables | Categories | % | Group AHI < 15/h | Group AHI ≥ 15/h | P-value Chi2 | |
|---|---|---|---|---|---|---|
Gender | Male (n = 692) | 52.78% | 47.21% | 87.36% | <0.001 | |
Female (n = 619) | 47.22% | 52.79% | 12.64% | |||
Snoring | No (n = 646) | 49.28% | 54.30% | 18.13% | <0.001 | |
Yes (n = 665) | 50.72% | 45.70% | 81.87% | |||
Metabolic syndrome | No (n = 1199) | 91.46% | 93.98% | 75.82% | <0.001 | |
Yes (n = 112) | 8.54% | 6.02% | 24.18% | |||
Benzodiazepines use | No (n = 1080) | 82.34% | 82.02% | 84.62% | 0.394 | |
Yes (n = 231) | 17.62% | 17.98% | 15.38% | |||
Z-drugs use | No (n = 1210) | 92.30% | 91.94% | 94.51% | 0.228 | |
Yes (n = 101) | 7.70% | 8.06% | 5.49% | |||
Antidepressant therapy | No (n = 918) | 70.02% | 69.26% | 74.73% | 0.136 | |
Yes (n = 393) | 29.98% | 30.74% | 25.27% | |||
Smoking | No (n = 1013) | 77.27% | 77.24% | 77.47% | 0.944 | |
Yes (n = 298) | 22.73% | 22.76% | 22.53% | |||
Alcohol | No (n = 1010) | 77.04% | 78.74% | 66.48% | <0.001 | |
Yes (n = 301) | 22.96% | 21.26% | 33.52% | |||
Insomnia maintenance | No (n = 785) | 59.88% | 38.97% | 47.25% | 0.034 | |
Yes (n = 526) | 40.12% | 61.03% | 52.75% | |||
Mean ± SD | t-test | |||||
BMI (kg/m2) | 26.92 ± 5.74 | 26.21 ± 5.47 | 31.31 ± 5.45 | <0.001 | ||
<25 (n = 570) | 43.48% | 49.07% | 8.79% | |||
≥25 & <30 (n = 411) | 31.35% | 30.56% | 36.26% | |||
≥30 (n = 330) | 25.17% | 20.37% | 54.95% | |||
Age (years) | 45.09 ± 12.41 | 43.78 ± 11.88 | 53.23 ± 12.55 | <0.001 | ||
<50 (n = 871) | 66.44% | 70.41% | 41.75% | |||
≥50 & <65 (n = 376) | 28.68% | 26.31% | 43.41% | |||
≥65 (n = 64) | 4.88% | 3.28% | 14.84% | |||
Median (P25-P75) | Wilcoxon test | |||||
CRP (mg/L) | 1.5 (0.75 – 3.2) | 1.4 (0.70 – 3) | 2.1 (1 – 4.4) | <0.001 | ||
≤7 (n = 1223) | 93.29% | 94.15% | 87.91% | |||
>7 (n = 88) | 6.71% | 5.85% | 12.09% | |||
BDI | 6 (3 – 11) | 7 (3 – 11) | 5 (3 – 9) | <0.001 | ||
≤8 (n = 826) | 63.01% | 61.29% | 73.62% | |||
>8 & <16 (n = 327) | 24.94% | 25.51% | 21.43% | |||
≥16 (n = 158) | 12.05% | 13.20% | 4.95% | |||
Epworth | 10 (6 – 14) | 6 (10 – 13) | 11 (8 – 14) | <0.001 | ||
≤10 (n = 713) | 54.39% | 56.33% | 42.31% | |||
>10 (n = 598) | 45.61% | 43.67% | 57.69% | |||
ISI | 18 (16 – 21) | 19 (16 – 21) | 18 (16 – 20) | <0.001 | ||
<15 (n = 178) | 13.58% | 12.75% | 18.68% | |||
≥15 & <21 (n = 748) | 57.06% | 56.42% | 60.99% | |||
≥21 (n = 385) | 29.37% | 30.82% | 20.33% | |||
AHI | 1 (2 – 7) | 2 (1 – 4) | 30 (21 – 52) | <0.001 | ||
<15/h (n = 1129) | 86.12% | |||||
≥15/h (n = 182) | 13.88% |