Table 4.
PSG testing in patients with normal liver, mild NASH and advanced NASH: results of initial testing and ‘split test’§
| PSG variable | No NASH | Mild NASH | Advanced NASH | p value* |
|---|---|---|---|---|
| Initial testing | (N = 94) | (N = 94) | (N = 30) | |
| AHI, number/h | 13 (5, 28) | 12 (6, 29) | 8.5 (4, 43) | 0.551 |
| Mean SpO2, % | 93 (92, 94) | 93.0 (92, 95) | 93.0 (92, 94) | 0.690 |
| Percent TST SpO2<90% | 3.0 (0.6, 10.7) | 2.9 (0.2, 8.3) | 2.0 (0.2, 14.6) | 0.630 |
| Split PSG | (N = 76) | (N = 86) | (N = 24) | |
| AHI, number/h | 2 (1, 5) | 2.0 (1.0, 6.0) | 2.5 (1.0, 6.5) | 0.377 |
| Mean SpO2, % | 94 (93, 95) | 95 (93, 96) | 95 (93, 96) | 0.442 |
| Percent TST SpO2 < 90% | 0.2 (0.0, 2.7) | 0.1 (0.0, 0.5) | 0.6 (0.1, 3.9) | 0.061 |
TST = Total sleep time; SpO2 = oxyhemoglobin saturation measured by pulse oximetry.
§
All values are median and IQR.
*
Kruskal Wallis test.