The Time of the Insult/Triggering Event in Primary Osteosarcoma and Ewing’s Sarcoma of Bone as Determined by Incubation Period Modeling and Age Distribution of Such Malignancies
Table 2
Demographics of conventional osteosarcoma by anatomic location.
Total
Long bone
Mandible
Pelvis
RSTCl
Short bone
Skull
Vertebral
value
3988
2942
175
316
83
90
209
98
Age (yrs)
23.1 ± 17.4
40.6 ± 20.0
43.1 ± 23.3
37.5 ± 22.7
33.2 ± 22.5
39.2 ± 20.5
44.0 ± 23.2
<0.0001
Median age (yrs)
19
17
38
41
33
29
39
42
Gender
Male
2190
1679
71
175
50
53
109
53
0.0021
Female
1263
104
141
33
37
100
45
Geographic Location in the USA
Midwest
663
506
23
57
13
18
35
11
0.078
Northeast
512
364
24
51
10
19
25
19
South
552
403
36
47
8
11
33
14
West
2186
1669
92
161
52
42
116
54
Race
White
2989
2217
116
272
75
69
163
77
0.0001
Black
562
436
39
29
2
12
33
11
(<0.0001)∧
Indo-Malay
235
192
10
10
4
4
7
8
Amerindian
33
30
1
0
1
1
0
0
Indo-Mediterranean
22
15
3
1
0
3
0
0
Polynesian
35
27
1
4
0
0
2
1
RSTCl: rib, sternum, clavicle. ∧The 3 most common races, White, Black, and Indo-Malay.
