| Variables | Results |
| Age, years | 77 ± 8 |
| Sex (male/female) | 88/20 |
| Weight, kg | 56 ± 12 |
| Height, cm | 150 ± 9 |
| Body mass index, kg/m2 | 25 ± 4 |
| Mallampati classification (I/II/III/IV/not assessed) | 20/31/50/1/6 |