Table 2: Categorized variables for the training and validation cohort showing no statistical differences in distribution between the two cohorts in CHI2 test for all variables. Due to a high percentage of missing values for ischemic heart disease and diabetes in the validation cohort statistical analysis between the cohorts where not performed.
| - |
- |
Training cohort |
Validation cohort |
- |
| Variable |
- |
No. |
Missing (%) |
No. |
Missing (%) |
Chi2 test |
| Fracture |
- |
- |
- |
- |
- |
- |
| - |
Yes |
104 |
0 |
94 |
0 |
0.819 |
| - |
No |
36 |
- |
36 |
- |
- |
| Cancer group |
- |
- |
- |
- |
- |
- |
| - |
Slow |
99 |
0 |
79 |
0 |
0.225 |
| - |
Moderate |
10 |
- |
13 |
- |
- |
| - |
Fast |
31 |
- |
38 |
- |
- |
| Visceral metastases |
- |
- |
- |
- |
- |
- |
| - |
Yes |
47 |
0 |
58 |
8 |
0.083 |
| - |
No |
93 |
- |
64 |
- |
- |
| Skeletal metastases |
- |
- |
- |
- |
- |
- |
| - |
Solitary |
53 |
0 |
38 |
0 |
0.228 |
| - |
Multiple |
87 |
- |
92 |
- |
- |
| ASA group |
- |
- |
- |
- |
- |
- |
| - |
1 + 2 |
63 |
7 |
74 |
2 |
0.147 |
| - |
3 + 4 |
70 |
- |
54 |
- |
- |
| Karnofsky score |
- |
- |
- |
- |
- |
- |
| - |
>= 70 |
96 |
0 |
73 |
3 |
0.095 |
| - |
< 70 |
44 |
- |
53 |
- |
- |
| Ischemic heart disease |
- |
- |
- |
- |
- |
- |
| - |
Yes |
6 |
0 |
0 |
128 |
N/A |
| - |
No |
134 |
- |
2 |
- |
- |
| Diabetes |
- |
- |
- |
- |
- |
- |
| - |
Yes |
19 |
0 |
0 |
- |
- |
| - |
No |
121 |
- |
2 |
128 |
N/A |