Comparison between the difficult intubation group and the non-difficult intubation group in the haematoma patients
| Characteristic | Difficult intubation group | Non-difficult intubation group | χ²/Z/t | P value |
| n=16 | n=39 | |||
| Gender | 0.754* | |||
| Male | 12 (75.00%) | 27 (69.23%) | ||
| Female | 4 (25.00%) | 12 (30.77%) | ||
| Age/(years) | 54.56±9.62 | 53.21±8.71 | t=−0.509 | 0.613 |
| BMI/ (kgm−2) | 24.95 (2.00) | 25.50 (4.00) | Z=−1.122 | 0.262 |
| Hypertension | 5 (31.25%) | 8 (20.51%) | 0.489* | |
| Difficult intubation prior to the initial surgery | 1 (6.25%) | 0 (0) | 0.291* | |
| C3 or C4 involvement | 11 (68.75%) | 19 (48.72%) | 0.237* | |
| ACCF | 6 (37.50%) | 15 (38.46%) | χ²=0.004 | 0.947 |
| Type of haematoma | 0.012* | |||
| Retropharyngeal haematoma | 15 (93.75%) | 23 (58.97%) | ||
| spinal epidural haematoma | 1 (6.25%) | 16 (41.03%) | ||
| Interval between symptom onset and airway intervention (hours) | 2.00 (2.90) | 1.00 (2.50) | Z=2.418 | 0.016 |
| Time of presentation of haematoma (hours) | 8.50 (16.00) | 4.00 (10.00) | Z=0.688 | 0.492 |
| ASA physical status classification | χ²=0.773 | 0.379 | ||
| I | 6 (37.50%) | 10 (25.64%) | ||
| ≥II | 10 (62.50%) | 29 (174.36%) | ||
| Hospitalisation duration (days) | 12(7) | 7 (5) | Z=3.094 | 0.002 |
| Cost (¥) | 9 371 (3 579) | 9 363 (3 230) | Z=0.474 | 0.636 |
Data are presented as n (%) or Median (IQR) or means±SD.
*Fisher exact test.
ACCF, anterior cervical corpectomy and fusion; ASA, American society of Aneshesiologists; BMI, body mass index.