Comparisons between subjects with OSA and normal subjects for different cut off values for apnoea-hypopnoea index after adjustment for BMI, neck circumference, and ethnicity†
| AHI(/h) | Age (years) | Mallampati score (1–4) | Thyromental angle (degrees) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OSA | Normal | p value | OSA | Normal | p value | OSA | Normal | p value | |
| Values are means. | |||||||||
| *p<0.05. | |||||||||
| †ANCOVA with adjustment for BMI, neck circumference and ethnicity; Bonferroni corrections for multiple comparisons; and follow-up univariate analyses. | |||||||||
| ⩾5 | 49 | 44 | * | 3.7 | 3.4 | * | 161 | 151 | * |
| n | (201) | (38) | |||||||
| ⩾10 | 50 | 46 | * | 3.7 | 3.5 | * | 161 | 154 | * |
| n | (168) | (71) | |||||||
| ⩾15 | 50 | 46 | * | 3.8 | 3.5 | * | 161 | 156 | * |
| n | (143) | (96) | |||||||
| ⩾30 | 51 | 47 | * | 3.8 | 3.6 | * | 164 | 157 | * |
| n | (88) | (151) | |||||||