Table 3.
Correlation between polysomnographic variables and serum levels of uric acid and lactate among patients with OSAS.
| Variable (n=40) | Desaturation index | Basal oxygen | 95%a | 90%a | AHI | |
|---|---|---|---|---|---|---|
|
| ||||||
| Serum uric acid after sleep (a) | r | 0.212 | −0.425 | 0.494* | 0.418 | 0.264 |
| P value | .370 | .062 | .027 | .067 | .260 | |
| Plasma lactate after sleep (a′) | R | 0.487b | −0.492b | −0.654b | 0.553b | 0.670b |
| P value | .030 | .028 | .002 | .011 | .001 | |
r: correlation coefficient for serum uric acid, R: correlation coefficient for plasma lactate, AHI:apnea-hypopnea index.
a
%TST below X oxygen saturation;
b
significant correlation after sleep