Table 1.
Patient demographics matched for age, sex, and ODI
| Measure* | Icelandic | Chinese | p |
|---|---|---|---|
| N † | 108 | 57 | — |
| Age (years) | 50.85 ± 8.77 | 50.35 ± 8.83 | 0.9406 |
| Male, N (%) | 84 (77.78) | 44 (77.19) | 0.9888 |
| Height (cm) | 177.1 ± 8.62 | 168.5 ± 6.65 | <0.0001 |
| Weight (kg) | 103.0 ± 17.09 | 78.29 ± 10.28 | <0.0001 |
| BMI (kg/m2) | 32.81 ± 4.83 | 27.71 ± 3.50 | <0.0001 |
| Neck circumference (cm) | 42.48 ± 3.84 | 41.18 ± 2.87 | 0.0107 |
| ODI (events/h) | 37.45 ± 18.87 | 38.13 ± 20.02 | 0.6840 |
AHI, apnea–hypopnea index, BMI, body mass index, ODI, oxygen desaturation index. *Estimates presented as mean ± SD for continuous variables or N (percent) for categorical;
† N = 51 2:1 Icelandic: Chinese matched sets and N = 6 1:1 matched pairs. Significant p-values in bold.