Revisiting the Role of Radiation Therapy in Chondrosarcoma: A National Cancer Database Study
Table 1
Patient characteristics.
N (%)
No radiation (n = 4742)
Radiation (n = 680)
High dose >60 Gy (n = 228)
Low dose 40–60 Gy (n = 204)
Palliative <40 Gy (n = 107)
Conventional (n = 294)
Advanced (n = 245)
Age, mean (SD) in years
52 (52-53)
55 (53–56)
52 (50–54)
58 (55–60)
60 (56–63)
58 (56–60)
50 (48–53)
Gender
Female
2272 (48)
308 (45)
102 (45)
91 (45)
52 (49)
139 (47)
110 (45)
Race
Asian
116 (3)
18 (3)
4 (2)
6 (3)
3 (3)
6 (2)
8 (3)
Black
319 (7)
49 (7)
10 (4)
15 (7)
12 (11)
21 (7)
14 (6)
White
4129 (89)
595 (89)
209 (92)
179 (89)
89 (85)
262 (90)
215 (90)
Hispanic ethnicity
343 (8)
67 (10)
27 (12)
17 (9)
10 (10)
27 (10)
26 (11)
Comorbidity
0
3964 (84)
559 (82)
183 (80)
165 (81)
91 (85)
235 (80)
212 (87)
1
616 (13)
92 (14)
37 (16)
28 (14)
12 (11)
48 (16)
24 (10)
>1
167 (4)
29 (4)
8 (4)
11 (5)
4 (4)
11 (4)
9 (4)
Insurance
Private
2777 (61)
361 (54)
122 (54)
107 (53)
47 (44)
140 (48)
150 (62)
Government
1564 (34)
276 (41)
87 (39)
85 (42)
55 (51)
130 (45)
84 (35)
None
220 (5)
35 (5)
17 (8)
9 (4)
5 (5)
21 (7)
9 (4)
Income above median
2791 (60)
416 (62)
142 (62)
119 (59)
64 (60)
173 (59)
157 (64)
Academic facility type
2375 (66)
281 (54)
100 (60)
74 (44)
50 (56)
114 (47)
107 (64)
For each value, the (%) reflects only the proportion of patients with known values for each variable (unknown values not included in %). Statistical comparisons included RT vs. none, palliative vs. low vs. high doses (non-SRS modalities), and conventional vs. advanced modalities. Fisher’s exact or Pearson chi-square tests were performed for categorical variables. Two-tailed t-test or ANOVA performed for numerical variables (age). Statistical significance indicated by for , for , and for .
