Associations between variables of obstructive sleep apnoea and glucose metabolism obtained at the oral glucose tolerance test
| Fasting plasma glucose mmol·L−1 | Fasting serum insulin IU·L−1 | Plasma glucose at 120 min mmol·L−1 | Serum insulin at 120 min IU·L−1 | ISI | |
| AHI# | 0.13 (-0.07–0.09) | 0.56 (0.14–0.99) | 0.024 (-0.12–0.17) | 3.38 (0.28–6.47) | -0.12 (-0.41–0.17) |
| ODI# | -0.012 (-0.10–0.07) | 0.37 (-0.08–0.83) | -0.007 (-0.16–0.15) | 1.81 (-1.43–5.06) | -0.18 (-0.48–0.12) |
| Minimal saturation | -0.013 (-0.03–0.005) | -0.038 (-0.14–0.06) | -0.046 (-0.079– -0.013) | -0.77 (-1.48– -0.07) | 0.07 (0.004–0.14) |
| % of the night with saturation <90% | 0.014 (-0.004–0.03) | 0.10 (0.001–0.20) | 0.026 (-0.13–0.07) | 0.098 (-0.74–0.94) | -0.04 (-0.12–0.04) |
Results are presented as β-values (95% confidence interval) from multiple regression analysis adjusting for age, waist/hip ratio, level of activity, smoking and alcohol consumption. ISI: insulin sensitivity index; AHI: apnoea/hypopnoea index; ODI: oxygen desaturation index. #: results are calculated for an increase of 10 units.