Table 7.
Multivariate hazard ratios, confidence intervals, andP-values of patients with GBM by racial groups, diagnosis year groups, and age
| |
Hazard Ratio |
||
|---|---|---|---|
| Estimate | 95% CI | P value** | |
|
Racial Groups |
|
|
|
| White* |
reference |
||
| Black |
0.97 |
0.91 to 1.02 |
0.238 |
| Asian/Pacific Islander |
0.89 |
0.83 to 0.95 |
<0.001 |
| American Indian/Alaska Native |
0.87 |
0.69 to 1.10 |
0.230 |
| Unknown |
0.51 |
0.33 to 0.78 |
0.002 |
| Other |
0.91 |
0.49 to 1.69 |
0.764 |
|
Diagnosis Year Groups |
|
|
|
| 1973 to 1979* |
reference |
||
| 1980 to 1989 |
0.88 |
0.87 to 0.89 |
<0.001 |
| 1990 to 1999 |
0.80 |
0.78 to 0.81 |
<0.001 |
| 2000 to 2008 |
0.65 |
0.62 to 0.68 |
<0.001 |
|
Radiation Treatment Groups |
|
|
|
| Yes* |
reference |
|
|
| No |
2.00 |
1.95 to 2.06 |
<0.001 |
| Unknown |
1.59 |
1.48 to 1.70 |
<0.001 |
|
Extent of Surgery Groups |
|
|
|
| Surgical Resection* |
reference |
|
|
| No Cancer Directed Resection |
1.64 |
1.59 to 1.69 |
<0.001 |
| Unknown |
1.27 |
1.20 to 1.34 |
<0.001 |
|
Age (Continuous Variable) |
|
|
|
| Age | 1.031 | 1.030 to 1.032 | <0.001 |
* Reference group against which other groups’ survival experience are compared.