|
Characteristic
|
# of Patients(range or %)
|
p value
|
|---|
|
Mean Age (yrs) at end of radiation
|
67 (33–94)
|
0.9055
|
|
Gender
| |
0.3902
|
|
male
|
125 (88.7%)
| |
|
female
|
16 (11.3%)
| |
|
Race
| |
0.1133
|
|
Caucasian
|
119 (84.4%)
| |
|
Non-caucasian
|
22 (15.6%)
| |
|
Median Pack Years
|
44 (0–135)
|
0.6769
|
|
Smoker
| |
0.3530
|
|
Never
|
12 (8.5%)
| |
|
Former
|
92 (65.2%)
| |
|
Current
|
32 (22.7%)
|
0.5568
|
|
Unknown
|
5 (3.5%)
| |
|
Heavy Alchohol Use
| |
0.0630
|
|
Never (Reference)
|
89 (63.1%)
| |
|
Former
|
21 (14.9%)
|
0.8836
|
|
Current
|
19 (13.5%)
|
0.0222
|
|
Unknown
|
12 (8.5%)
| |
|
Ant Commissure
| |
0.0505
|
|
Involved
|
71 (50.3%)
| |
|
Non Involved
|
52 (36.9%)
| |
|
Unknown
|
18 (12.8%)
| |
|
Tumor Bulk
| |
0.6386
|
|
Bulky
|
55 ( 39%)
| |
|
Non bulky
|
86 ( 61%)
| |
|
Hemoglobin (g/dL)
|
14.2
| |
|
Grade
| |
0.6614
|
|
Well (Reference)
|
43 (30.5%)
| |
|
Moderate
|
57 (40.4%)
|
0.7192
|
|
Poor
|
14 (10%)
|
0.3646
|
|
Unknown
|
27 (19.1%)
| |
|
Stage (T2b vs T1a/b/2a)
| |
0.0205
|
|
1a
|
65 ( 46%)
|
0.0033
|
|
1b
|
21 (14.9%)
|
0.1766
|
|
2a
|
29 (20.6%)
|
0.0621
|
|
2b (Reference)
|
25 (17.7%)
| |
|
Unknown
|
1 (1%)
| |
|
Subglottic Ext
| |
0.0505
|
|
Yes
|
18 (12.8%)
| |
|
No
|
96 (68.1%)
| |
|
Missing
|
27 (19.2%)
| |
|
Supraglottic Ext
| |
0.4668
|
|
Yes
|
30 (21.2%)
| |
|
No
|
87 (61.7%)
| |
|
Missing
|
24 (17%)
| |
|
Median Overall Treatment Time (wks)
|
6.5 (4–9.7)
| |
|
Radiation Dose (cGy) as Continous
|
6820 (6300–7264)
|
0.0367
|
|
≤66 Gy
|
45
| |
|
> 66 Gy
|
96
| |
|
Median Dose/Fraction
|
212 (176–256)
|
0.1353
|
|
≤2Gy/fx
|
45 (31.9%)
| |
|
>2Gy/fx
|
95 (67.4%)
| |
|
missing
|
1 (1%)
| |
|
Mean Follow-Up (month)
|
67.7 (0–239)
| |
