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Table 1 Demographics and measurement data between two groups

From: Radiological indicators to predict the application of assistant intubation techniques for patients undergoing cervical surgery

Items Macintosh laryngoscopy group (n = 78) Assistant technique group (n = 26) Statistic
2/z/t)
P-value
Male (%) 71 (91.0) 21 (80.8) 2.010 0.156
Age (years) 51.2 ± 8.6 53.4 ± 10.4 1.062 0.291
Height (cm) 170.7 ± 5.9 168.3 ± 6.6 −1.349 0.177
Weight (kg) 71.2 ± 8.2 68.2 ± 9.1 −1.524 0.128
BMI (kg/m2) 24.4 ± 2.7 24.0 ± 2.7 − 0.641 0.534
X1 (mm) 106.0 ± 7.7 108.0 ± 6.8 1.178 0.242
X2 (mm) 28.1 ± 3.5 33.0 ± 4.1 − 4.857 < 0.001
X3 (mm) 103.5 ± 7.4 104.1 ± 6.7 − 0.184 0.854
X4 (mm) 40.9 ± 3.8 39.2 ± 5.0 −1.793 0.076
X5 (mm) 98.8 ± 6.9 101.1 ± 7.9 1.396 0.166
X6 (mm) 19.3 ± 6.3 16.3 ± 4.9 − 2.225 0.028
X7 (mm) 44.7 ± 6.1 40.0 ± 6.2 −3.323 0.001
X8 (mm) 95.0 ± 7.3 93.6 ± 8.2 −0.825 0.411
X9 (mm) 7.9 ± 2.8 6.6 ± 1.7 −2.064 0.039
X10 (mm) 6.1 ± 1.8 6.1 ± 2.6 − 0.833 0.405
Angle A (°) 97.1 ± 7.9 95.8 ± 5.9 − 0.748 0.456
Angle B (°) 83.1 ± 7.4 80.2 ± 9.9 − 2.091 0.037
Angle C (°) 28.7 ± 3.9 29.4 ± 2.8 − 0.214 0.831
Angle D (°) 99.8 ± 7.7 101.6 ± 9.6 0.155 0.338
Angle E (°) 27.2 ± 6.3 14.8 ± 5.7 −8.866 < 0.001
Angle F (°) 15.9 ± 6.1 12.5 ± 6.3 −2.391 0.017
MRI 1 (mm) 8.1 ± 1.7 6.9 ± 1.8 −3.125 0.002
MRI 2 (mm) 7.4 ± 1.9 7.2 ± 2.4 −0.721 0.471
MRI 3 (mm) 16.7 ± 3.8 15.9 ± 3.7 −0.998 0.321
MRI 4 (mm) 39.5 ± 4.5 42.1 ± 4.2 2.541 0.013
MRI 5 (mm) 9.3 ± 1.7 8.7 ± 1.3 −1.653 0.101
MRI 6 (mm) 46.5 ± 5.94 44.8 ± 6.1 −1.263 0.209
MRI 7 (mm) 20.7 ± 4.2 16.1 ± 6.1 −4.212 < 0.001
MRI 8 (mm) 11.6 ± 3.6 11.3 ± 6.2 −1.723 0.085
MRI 9 (mm) 8.6 ± 2.1 9.8 ± 4.3 −1.156 0.248