Table 1.
Comparison of characteristics in apneics and non-apneics
| Characteristic | Overall | Non-OSA (AHI < 5) |
OSA (AHI ≥ 5) |
P |
|---|---|---|---|---|
| Sample Size, N | 83 | 28 | 55 | — |
| Age, years | 49.8 ± 12.4 | 44.9 ± 11.9 | 52.4 ± 11.9 | .009 |
| BMI, kg/m2 | 31.6 ± 6.5 | 32.0 ± 6.2 | 31.3 ± 6.7 | .645 |
| Male, n (%) | 50 (60.2) | 9 (32.1) | 41 (74.6) | .0002 |
| Race, n (%) | .725 | |||
| White | 52 (62.7) | 16 (57.1) | 36 (65.5) | |
| Black/African American | 25 (30.1) | 10 (35.7) | 15 (27.3) | |
| Other | 6 (7.2) | 2 (7.1) | 4 (7.3) | |
| AHI, events/h | 23.1 ± 24. 5 | 2.0 ± 1.3 | 33.9 ± 23.7 | <.0001 |
| Study type, n (%) | .478 | |||
| HSAT | 37 (44.6) | 14 (50.0) | 23 (41.8) | |
| PSG | 46 (55.4) | 14 (50.0) | 32 (58.2) | |
| Ultrasound measures | ||||
| Echo intensity | 72.36± 11.22 | 71.62 ± 13.42 | 72.74 ± 10.04 | .697 |
| Tongue height, mm | 33.11 ± 5.22 | 32.45 ± 5.24 | 33.45 ± 5.22 | .417 |
| Tongue width, mm | 40.79 ± 6.19 | 38.80 ± 4.92 | 41.80 ± 6.55 | .022 |
| MRI measures | ||||
| Posterior tongue fat*, % | 0.38 ± 0.06 | 0.36 ± 0.06 | 0.39 ± 0.06 | .103 |
| Whole tongue fat*, % | 0.30 ± 0.07 | 0.27 ± 0.06 | 0.31 ± 0.07 | .005 |
| Tongue height†, mm | 33.17 ± 5.40 | 32.12 ± 4.62 | 33.72 ± 5.73 | .211 |
| Tongue width†, mm | 41.03 ± 6.56 | 39.00 ± 4.77 | 42.09 ± 7.14 | .035 |
HSAT = home sleep apnea testing; PSG = polysomnogram.
*n = 24 non-OSA, n = 50 OSA with available data.
† n = 24 non-OSA, n = 46 OSA with available data