Table 2.
Anthropometric and Polysomnographic Variables for the Study Population: Total and by Sex and Age Subgroups
| Variable | Total | Male | Female | Age <50 | Age > 50 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Mean | SD | N | Mean | SD | N | Mean | SD | N | Mean | SD | N | Mean | SD | ||||||
| Age (years) | 5021 | 49.5 | ± | 14.9 | 2679 | 49.5 | ± | 14.9 | 2341 | 49.5 | ± | 14.8 | 2452 | 37.0 | ± | 8.3 | 2569 | 61.4 | ± | 8.8 |
| Weight (kg) | 4892 | 87.4 | ± | 21.1 | 2612 | 92.5 | ± | 19.4 | 2279 | 81.6 | ± | 21.4 | 2403 | 89.3 | ± | 22.9 | 2489 | 85.7 | ± | 19.0 |
| Height (cm) | 4894 | 170.5 | ± | 10.1 | 2612 | 176.9 | ± | 7.6 | 2281 | 163.3 | ± | 7.4 | 2404 | 171.8 | ± | 10.0 | 2490 | 169.3 | ± | 10.1 |
| BMI (kg/m2) | 4893 | 30.0 | ± | 6.7 | 2612 | 29.5 | ± | 5.7 | 2280 | 30.6 | ± | 7.7 | 2403 | 30.2 | ± | 7.2 | 2490 | 29.9 | ± | 6.3 |
| ESS | 4983 | 8.4 | ± | 4.7 | 2659 | 8.2 | ± | 4.6 | 2323 | 8.7 | ± | 4.9 | 2435 | 8.9 | ± | 4.7 | 2548 | 7.9 | ± | 4.7 |
| PSG indices | ||||||||||||||||||||
| Apnea Index (events/hr) | 5021 | 3.1 | ± | 7.5 | 2679 | 4.1 | ± | 8.9 | 2341 | 2.0 | ± | 5.2 | 2452 | 2.3 | ± | 6.8 | 2569 | 3.9 | ± | 8.0 |
| AHI (events/hr) | 5021 | 13.8 | ± | 15.8 | 2679 | 16.5 | ± | 16.9 | 2341 | 10.8 | ± | 13.8 | 2452 | 10.9 | ± | 14.6 | 2569 | 16.7 | ± | 16.3 |
| Min. wake SaO2 (%) | 5018 | 75.7 | ± | 29.2 | 2677 | 75.3 | ± | 29.2 | 2340 | 76.2 | ± | 29.2 | 2452 | 77.7 | ± | 28.8 | 2566 | 73.9 | ± | 29.5 |
| Sleep with SaO2 < 88% (%) | 5021 | 1.5 | ± | 7.8 | 2679 | 1.5 | ± | 7.5 | 2341 | 1.5 | ± | 8.2 | 2452 | 0.9 | ± | 6.3 | 2569 | 2.2 | ± | 9.0 |
| Mean Sleep SaO2 (%) | 5020 | 94.8 | ± | 2.0 | 2678 | 94.7 | ± | 1.9 | 2341 | 95.0 | ± | 2.1 | 2451 | 95.5 | ± | 1.7 | 2569 | 94.1 | ± | 2.1 |
| Min Sleep SaO2 (%) | 5019 | 83.3 | ± | 17.6 | 2677 | 82.4 | ± | 18.2 | 2341 | 84.2 | ± | 16.8 | 2451 | 84.3 | ± | 18.6 | 2568 | 82.3 | ± | 16.4 |
| Adiposity-Estimating Equations | ||||||||||||||||||||
| Rohrer index | 4891 | 17.7 | ± | 4.3 | 2611 | 16.7 | ± | 3.3 | 2279 | 18.8 | ± | 4.9 | 2403 | 17.6 | ± | 4.5 | 2488 | 17.8 | ± | 4.1 |
| Larrson | 4890 | 34.4 | ± | 9.2 | 2611 | 28.7 | ± | 6.2 | 2279 | 40.9 | ± | 7.6 | 2403 | 34.3 | ± | 9.3 | 2487 | 34.6 | ± | 9.1 |
| Gallagher 2000 | 4892 | 32.2 | ± | 9.0 | 2612 | 26.1 | ± | 5.4 | 2280 | 39.0 | ± | 7.1 | 2403 | 30.7 | ± | 9.3 | 2489 | 33.6 | ± | 8.4 |
| Deurenberg 1991 | 4892 | 36.2 | ± | 10.6 | 2612 | 30.6 | ± | 7.5 | 2280 | 42.7 | ± | 9.8 | 2403 | 33.5 | ± | 10.8 | 2489 | 38.9 | ± | 9.6 |
| CUN BAE | 4892 | 35.9 | ± | 9.6 | 2612 | 30.2 | ± | 6.9 | 2280 | 42.4 | ± | 7.9 | 2403 | 34.5 | ± | 10.2 | 2489 | 37.2 | ± | 8.7 |
| ECORE BF | 4892 | 36.0 | ± | 10.1 | 2612 | 30.1 | ± | 6.8 | 2280 | 42.8 | ± | 8.9 | 2403 | 34.5 | ± | 10.4 | 2489 | 37.5 | ± | 9.6 |
| BSI | 4891 | 61.6 | ± | 11.1 | 2611 | 63.6 | ± | 10.0 | 2279 | 59.2 | ± | 11.9 | 2403 | 62.4 | ± | 12.1 | 2488 | 60.8 | ± | 10.1 |
| NWAI | 4891 | 1.7 | ± | 1.9 | 2611 | 1.6 | ± | 1.8 | 2279 | 1.8 | ± | 2.1 | 2403 | 1.7 | ± | 2.1 | 2488 | 1.6 | ± | 1.8 |
| Deurenberg 1998 | 4892 | 34.7 | ± | 11.1 | 2612 | 28.7 | ± | 7.8 | 2280 | 41.5 | ± | 10.4 | 2403 | 32.3 | ± | 11.5 | 2489 | 37.0 | ± | 10.3 |
| Heo | 4890 | 35.5 | ± | 8.8 | 2611 | 29.9 | ± | 5.7 | 2279 | 42.0 | ± | 7.1 | 2403 | 34.9 | ± | 8.6 | 2487 | 36.2 | ± | 8.9 |
| Heitmann | 4890 | 32.5 | ± | 8.9 | 2611 | 27.3 | ± | 5.5 | 2279 | 38.4 | ± | 8.3 | 2403 | 30.8 | ± | 9.1 | 2487 | 34.1 | ± | 8.4 |
| Gallagher 1996 | 4892 | 33.6 | ± | 11.9 | 2612 | 27.4 | ± | 8.4 | 2280 | 40.6 | ± | 11.4 | 2403 | 32.2 | ± | 12.5 | 2489 | 34.9 | ± | 11.2 |
| Visser | 4892 | 42.0 | ± | 9.6 | 2612 | 36.3 | ± | 6.1 | 2280 | 48.6 | ± | 8.7 | 2403 | 42.1 | ± | 10.0 | 2489 | 41.9 | ± | 9.2 |
| Noppa | 4891 | 31.3 | ± | 6.3 | 2611 | 28.8 | ± | 4.5 | 2279 | 34.2 | ± | 6.7 | 2403 | 30.8 | ± | 6.2 | 2488 | 31.8 | ± | 6.3 |
| Deurenberg 1989 | 4892 | 40.6 | ± | 7.9 | 2612 | 34.9 | ± | 4.8 | 2280 | 47.2 | ± | 5.2 | 2403 | 40.6 | ± | 8.1 | 2489 | 40.6 | ± | 7.7 |
Note: Data presented as means and standard deviations.
Abbreviations: AHI, apnea-hypopnea index; BMI, body mass index; ESS, Epworth Sleepiness Scale; PSG, polysomnography; SaO2, oxygen saturation.