|
Characteristic
|
Control N (%)
|
HNRT N (%)
|
P value
|
|---|
|
Sex
| | |
1.0
|
|
Female
|
30 (12.7)
|
30 (12.7)
| |
|
Male
|
206 (87.3)
|
206 (87.3)
|
|
Body mass index (kg/m2)
| | |
1.0
|
|
≤ 18.5
|
8 (3.4)
|
9 (3.8)
| |
|
18.6–25.0
|
113 (47.9)
|
115 (48.7)
|
|
25.1—30.0
|
79 (33.5)
|
78 (33.1)
|
|
30.1—35.0
|
26 (11.0)
|
25 (10.6)
|
|
35.1—40.0
|
8 (3.4)
|
8 (3.4)
|
|
≥ 40.1
|
2 (0.8)
|
1 (0.4)
|
|
Mallampati score
| | |
0.048
|
|
1
|
42 (18.3)
|
21 (9.3)
| |
|
2
|
96 (41.7)
|
109 (48.2)
|
|
3
|
63 (27.4)
|
67 (29.6)
|
|
4
|
29 (12.6)
|
29 (12.8)
|
|
Mallampati score (1/2 vs. 3/4)
| | |
0.59
|
|
1/2
|
138 (60.0)
|
130 (57.5)
| |
|
3/4
|
92 (40.0)
|
96 (42.5)
|
|
Mouth opening
| | |
0.11
|
|
Full
|
191 (81.3)
|
176 (75.2)
| |
|
Limited
|
44 (18.7)
|
58 (24.8)
|
|
Edentulous
| | |
0.59
|
|
Yes
|
53 (22.5)
|
48 (20.4)
| |
|
No
|
183 (77.5)
|
187 (79.6)
|
|
Neck movement
| | |
0.001
|
|
Full range
|
210 (89.0)
|
181 (77.7)
| |
|
Restricted
|
26 (11.0)
|
52 (22.3)
|
|
Cancer stage
| | |
< 0.0001
|
|
T1
|
28 (13.1)
|
56 (24.6)
| |
|
T2
|
76 (35.7)
|
79 (34.6)
|
|
T3
|
34 (16.0)
|
58 (25.4)
|
|
T4
|
75 (35.2)
|
35 (15.4)
|
|
Intubation status
| | |
0.73
|
|
Difficult
|
31 (13.2)
|
27 (12.2)
| |
|
Easy
|
203 (86.8)
|
195 (87.8)
|
|
Laryngeal view
| | |
0.26
|
|
1
|
80 (58.8)
|
70 (49.6)
| |
|
2
|
41 (30.1)
|
58 (41.1)
|
|
3
|
10 (7.4)
|
10 (7.1)
|
|
4
|
5 (3.7)
|
3 (2.1)
|
|
Laryngeal view (1/2 vs. 3/4)
| | |
0.62
|
|
1/2
|
121 (89.0)
|
128 (90.8)
| |
|
3/4
|
15 (11.0)
|
13 (9.2)
|
- Abbreviation: HNRT head and neck radiation therapy
- Column percentages are provided
