Anesthesiology Research and Practice / 2014 / Article / Tab 1

Research Article

Learning Curves of Macintosh Laryngoscope in Nurse Anesthetist Trainees Using Cumulative Sum Method

Table 1

Patient characteristics and airway assessment details.

Successful intubation
(n = 323)
Failed intubation
(n = 65)
P value

Age (yrs) 41 (29–53)47 (32–60)0.05
BMI (kg/m2) 22.5 (20.2–25.2)22.8 (19.7–25.3)0.99
ASA physical status 0.87
 171 (22)13 (20.3)
 2244 (75.8)49 (76.6)
 37 (2.2)2 (3.1)
Thyromental distance (FB)0.42
 ≤3   155 (48.0)27 (41.5)
 3168 (52.0)37 (58.5)
Limit flexion and extension of neck3 (0.9)2 (3.1)0.20
Interincisor gap (FB)0.03
 27 (2.2)4 (6.3)
 3291 (90.1)60 (92.3)
 425 (7.7)1 (1.5)
Upper lip bite test classification0.71
 1, 2312 (96.6)62 (95.4)
 311 (3.4)3 (4.6)
Mallampati classification 0.002
 1, 2315 (97.5)57 (87.3)
 3, 48 (2.5)8 (12.7)
Laryngoscopic view<0.001
  1, 2320 (99.1)51 (78.5)
  3, 43 (0.9)14 (21.5)

Data are median (interquartile range) or number (percentage).
BMI: body mass index; ASA: American Society of Anesthesiologists; FB: fingerbreadth.